[39] Listed as shack c. in 1948 USDA Yearbook of
Agriculture.
[40] The genus _Dalea_ includes _Petalostemum_ in some
manuals.
[41] Often termed stemless loco in older literature but
the name loco should be reserved for the genus
_Astragalus_.
[42] The genus _Petalostemum_ is included in _Dalea_ in
some manuals.
=OTHER DICOT FORBS=
_Abronia fragrans_ Nutt. ex Hook. sweet sandverbena
_Abutilon theophrasti_ Medic. velvetleaf
_Acalypha_ L. copperleaf
_gracilens_ Gray slender c.
_ostryaefolia_ Riddell hophornbeam c.
_virginica_ L. Virginia c.
_Acerates_ (see _Asclepias_)
_Achillea_ L. yarrow
_millefolium_ L. subsp. _millefolium_ common y.
_millefolium_ L. subsp. _lanulosa_
(Nutt.) Piper western y.
_Acnida tamariscina_ (Nutt.) Wood waterhemp
_Actinea_ (see _Hymenoxys_)
_Actinomeris_ (see _Verbesina_)
_Agastache_ Clayt. gianthyssop
_nepetoides_ (L.) Ktze. catnip g.
_scrophulariaefolia_ (Willd.) Ktze. purple g.
_Agoseris cuspidata_ (see _Microseris_)
_Agrimonia_ L. agrimony
_parviflora_ Ait. many flower a.
_pubescens_ Wallr. downy a.
_rostellata_ Wallr. woodland a.
_Agrostemma githago_ L. common corncockle
_Alliaria officinalis_ Andrz. garlicmustard
_Allionia_ (included in _Mirabilis_)
_Amaranthus_ L. pigweed (amaranth of SPN)
_graecizans_ L. (_A. blitoides_ S. Wats.) tumbleweed
_hybridus_ L. slim p.
_palmeri_ S. Wats. palmer p.
_retroflexus_ L. rough p.
_spinosus_ L. spiny p.
_torreyi_ (Gray) Benth. torrey p.
_Ambrosia_ L. ragweed
_artemisiifolia_ L. (_A. elatior_ L.) common r.
_bidentata_ Michx. lanceleaf r.
_psilostachya_ DC.
(_A. coronopifolia_ T. & G.) western r.
_trifida_ L. giant r.
_Ammannia_ ammannia
_auriculata_ Willd. earleaf a.
_coccinea_ Rottb. purple a.
_Ampelamus albidus_ (Nutt.) Britt.
(_Gonolobus laevis_ of manuals,
not Michx.) climbingmilkweed
_Amsonia tabernaemontana_ Walt. willow amsonia
_Anagallis arvensis_ L. scarlet pimpernel
_Androsace occidentalis_ Pursh western rockjasmine
_Anemone_ L. anemone
_canadensis_ L. meadow a.
_caroliniana_ Walt. Carolina a.
_cylindrica_ Gray candle a.
_decapetala_ Ard. tenpetal a.
_virginiana_ L. Virginia a.
_Antennaria_ Gaertn. pussytoes
_neglecta_ Greene (including A.
_campestris_ Rydb. & _A.
longifolia_ Greene) field p.
_plantaginifolia_ (L.) Richards
(including _A. fallax_ Greene) plantainleaf p.
_Anthemis_ L. camomile
_cotula_ L. mayweed c.
_tinctoria_ L. golden c.
_Anychia_ (see _Paronychia_)
_Aplopappus_ (see _Haplopappus_)
_Apocynum_ L. dogbane
_cannabinum_ L. hemp d.
_sibiricum_ Jacq. prairie d.
_Aquilegia_ L. columbine
_Arabis_ L. rockcress
_canadensis_ L. sickle pod
_dentata_ (Torr.) T. & G. toothed r.
_hirsuta_ (L.) Scop. var. _pycnocarpa_
(M. Hopkins) Rollins hairy r.
_laevigata_ (Muhl.) Poir. smooth r.
_virginica_ (L.) Poir. Virginia r.
_Arctium minus_ (Hill) Bernh. smaller burdock
_Arenaria_ L. sandwort
_patula_ Michx. pitchers s.
_serpyllifolia_ L. thymeleaf s.
_stricta_ Michx. var. _texana_ Robins. Texas s.
_Argemone_ L. pricklypoppy
_polyanthemos_ (Fedde) G. Ownbey
_squarrosa_ Greene (including _A.
hispida_ Gray) hedgehog p.
_Aristolochia tomentosa_ Sims dutchmanspipe
_Armoracia lapathifolia_ Gilib.
[_Rorippa armoracia_ (L.) Hitchc.] common horseradish
_Artemisia_ L. sagewort; sagebrush
_annua_ L. sweet sagewort
_biennis_ Willd. biennial sagewort
_campestris_ L. (_A. canadensis_ Michx.) prairie sagewort
_dracunculus_ L. falsetarragan sagewort
_filifolia_ Torr. sand sagebrush
_ludoviciana_ Nutt. [including
var. _gnaphalodes_ (Nutt.) T. & G.] Louisiana sagewort
_vulgaris_ L. common sagewort
_Asarum canadense_ L. wildginger
_Asclepias_ L. (including _Acerates_ Ell.) milkweed
_amplexicaulis_ Sm. bluntleaf m.
_arenaria_ Torr. sand m.
_auriculata_ (Engelm.) Holz.
(_Acerates a._ Engelm.) leafy m.
_hirtella_ (Pennell) Woodson
(_Acerates h._ Pennell) prairie m.
_incarnata_ L. swamp m.
_lanuginosa_ Nutt. [_Acerates l._
(Nutt.) DC.] woolly m.
_latifolia_ (Torr.) Raf. broadleaf m.
_pumila_ (Gray) Vail plains m.
_purpurascens_ L. purple m.
_speciosa_ Torr. showy m.
_stenophylla_ Gray (_Acerates
angustifolia_ Dene.) narrowleaf m.
_subverticillata_ (Gray) Vail
(_A. galioides_ HBK.) poison m.
_sullivantii_ Engelm. sullivant m.
_syriaca_ L. var. _kansana_ (Vail)
Palmer & Steyerm. Kansas m.
_syriaca_ L. var. _syriaca_ common m.
_tuberosa_ L. butterfly m.
_verticillata_ L. whorled m.
_viridiflora_ Raf. [_Acerates v._
(Raf.) Eaton] green m.
_Asclepiodora_[43] Gray antelopehorn
_decumbens_ (Nutt.) Gray (_Asclepias
capricornu_ Woodson) spider a.
_viridis_ (Walt.) Gray
(_Asclepias v._ Walt.) green a.
_Aster_ L. aster
_anomalus_ Engelm. manyray a.
_arenosus_ Blake [_Leucelene ericoides_
(Torr.) Greene] babywhite a.
_azureus_ Lindl. azure a.
_drummondii_ Lindl. drummond a.
_ericoides_ L. heath a.
_exilis_ Ell. slim a.
_fendleri_ Gray fendler a.
_laevis_ L. var. _laevis_ smooth a.
_novae-angliae_ L. New England a.
_oblongifolius_ Nutt. aromatic a.
_ontarionis_ Wieg. (_A. missouriensis_
Britt., & _A. pantotrichus_ Blake) Missouri a.
_paludosus_ Ait. singlestem bog a.
_praealtus_ Poir. willowleaf a.
_sagittifolius_ Wedemeyer arrow a.
_sericeus_ Vent. silky a.
_simplex_ Willd. (_A. paniculatus_
Lam. not Mill.) panicled a.
_tanacetifolius_ HBK. [_Machaeranthera
t._ (HBK.) Nees] tansyleaf a.
_tataricus_ L. f. tatarian a.
_vimineus_ Lam. small white a.
_Astranthium integrifolium_ (Michx.) Nutt. entireleaved westerndaisy
_Atriplex_ L. saltbush
_argentea_ Nutt. silverscale s.
_canescens_ (Pursh) Nutt. fourwing s.
_patula_ L. fat-hen s.
_rosea_ L. tumbling orach
_Aureolaria_ (see _Gerardia_)
_Bacopa rotundifolia_ (Michx.) Wettst.
(_Macuillamia r._ Michx.) disk waterhyssop
_Bahia oppositifolia_ (Nutt.) DC.
[_Picradeniopsis o._ (Nutt.) Rydb.] plains bahia
_Barbarea vulgaris_ R. Br. bitter wintercress
_Bergia texana_ (Hook.) Seubert Texas bergia
_Berlandiera_ DC. berlandiera
_lyrata_ Benth. wireleaf b.
_texana_ DC. Texas b.
_Berteroa incana_ (L.) DC. hoary false-alyssum
_Berula erecta_ (Huds.) Coville stalky berula
_Beta_ L. beet
_Bidens_ L. beggarticks
_bipinnata_ L. spanishneedles
_cernua_ L. [including _B. glaucescens_
Greene, & _B. elliptica_ (Wieg.)
Gleason] nodding b.
_frondosa_ L. devils b.
_polylepis_ Blake [_B. involucrata_
(Nutt.) Britt.] coreopsis b.
_tripartita_ L. [_B. comosa_ (Gray)
Wieg., & _B. connata_ Muhl.] bur b.
_vulgata_ Greene tall b.
_Boehmeria cylindrica_ (L.) Sw. smallspike falsenettle
_Boltonia_ L’Her. boltonia
_asteroides_ (L.) L’Her. var.
_recognita_ (Fern. & Griscom) Cron.
(_B. latisquama_ Gray var.
_recognita_ Fern. & Griscom) white b.
_asteroides_ (L.) L’Her. var.
_latisquama_ (Gray) Cron.
(_B. latisquama_ Gray) violet b.
_Brassica_ L. mustard
_juncea_ (L.) Coss. India m.
_kaber_ (DC.) L. C. Wheeler charlock
_napus_ L. (_B. rapa_ of authors, not L.) turnip
_nigra_ (L.) Koch black m.
_oleracea_ L. cabbage, etc.
_rapa_ L. (_B. campestris_ L.) rape & rutabaga
_Brickellia grandiflora_ (Hook.) Nutt.
[_B. umbellata_ (Greene) Rydb.] brickellia
_Buchnera americana_ L. American bluehearts
_Cacalia_ L. indian plantain
_atriplicifolia_ L. pale i.
_tuberosa_ Nutt. tuberous i.
_Calceolaria_ (see _Hybanthus_)
_Callirhoë_ Nutt. poppymallow
_alcaeoides_ (Michx.) Gray pale p.
_digitata_ Nutt. finger p.
_involucrata_ (T. & G.) Gray purple p.
_Callitriche heterophylla_ Pursh waterstarwort
_Camelina microcarpa_ Andrz. littlepod falseflax
_Campanula americana_ L. American bellflower
_Cannabis sativa_ L. hemp
_Capsella bursa-pastoris_ (L.) Medic. shepherdspurse
_Cardamine_ L. bittercress
_bulbosa_ (Schreb.) BSP. bulb b.
_parviflora_ L. smallflower b.
_pensylvanica_ Muhl. Pennsylvania b.
_Cardaria draba_ (L.) Desv.
(_Lepidium draba_ L.) hoary cress
_Carduus nutans_ L. muskthistle
_Carthamus tinctorius_ L. safflower
_Castilleja_ Mutis paintbrush
_citrina_ Pennell citron p.
_coccinea_ (L.) Spreng. indian p.
_sessiliflora_ Pursh downy p.
_Centaurea_ L. centaurea
_americana_ Nutt. basketflower
_cyanus_ L. cornflower
_repens_ L. (_C. picris_ Pall.) Russian knapweed
_solstitialis_ L. yellow c.
_Cerastium_ L. cerastium
_brachypodum_ (Engelm.) Robins. shortstalk c.
_nutans_ Raf. powderhorn c.
_vulgatum_ L. big c.
_Ceratophyllum demersum_ L. hornwort
_Chaerophyllum_ L. chervil
_procumbens_ (L.) Crantz spreading c.
_reflexum_ Bush. reflexed c.
_texanum_ C. & R. Texas c.
_Chamaesaracha_ Gray falsenightshade
_conioides_ (Moric.) Britt.
_coronopus_ (Dunal) Gray green f.
_Chamaesyce_ (included in _Euphorbia_)
_Chenopodium_ L. goosefoot
_albescens_ Small pale g.
_album_ L. lambsquarters
_ambrosioides_ L. wormseed g.
_berlandieri_ Moq. pitseed g.
_boscianum_ Moq. goosefoot
_cycloides_ A. Nels. sandhill g.
_fremontii_ S. Wats. fremont g.
_glaucum_ L. oakleaf g.
_hybridum_ L. var. _gigantospermum_
(Aellen) Rouleau mapleleaf g.
_incanum_ (S. Wats.) Heller
_leptophyllum_ Nutt. slimleaf g.
_murale_ L. nettleleaf g.
_petiolare_ HBK.
_salinum_ Standl. alkali g.
_Chrysanthemum leucanthemum_ L. oxeyedaisy
_Chrysopsis_ Ell. goldaster
_pilosa_ Nutt. soft g.
_villosa_ (Pursh) Nutt. var.
_angustifolia_ (Rydb.) Cron.
[_C. angustifolia_ Rydb.,
_C. stenophylla_ (Gray) Greene]
_villosa_ (Pursh) Nutt. var.
_canescens_ Gray (_C.
berlandieri_ Greene)
_villosa_ (Pursh) Nutt. var. _foliosa_
(Nutt.) D. C. Eat.
(_C. foliosa_ Nutt.) leafy g.
_villosa_ (Pursh) Nutt. var.
_hispida_ (Hook.) Gray
[_C. viscida_ (Gray) Greene] rough g.
_villosa_ (Pursh) Nutt. var. _villosa_
(including _C. bakeri_ Greene,
_C. ballardi_ Rydb., _C.
hirsutissima_ Greene,
& _C. asprella_ Greene) hairy g.
_Cichorium intybus_ L. common chicory
_Cicuta maculata_ L. waterhemlock
_Circaea latifolia_ Hill broadleaf circaea
_Cirsium_ Mill. thistle
_altissimum_ (L.) Spreng. tall t.
_arvense_ (L.) Scop. Canada t.
_ochrocentrum_ Gray yellowspine t.
_undulatum_ (Nutt.) Spreng. wavyleaf t.
_vulgare_ (Savi) Airy-Shaw
(_C. lanceolatum_ of manuals) bull t.
_Claytonia virginica_ L. Virginia springbeauty
_Clematis_ L. clematis
_fremontii_ S. Wats. fremont c.
_ligusticifolia_ Nutt. western c.
_pitcheri_ T. & G. pitcher c.
_virginiana_ L. virginsbower
_Cleome_ L. spiderflower
_serrulata_ Pursh bee s.
_spinosa_ Jacq. spiny s.
_Cleomella angustifolia_ Torr. cleomella
_Cocculus carolinus_ (L.) DC. Carolina snailseed
_Collinsia violacea_ Nutt. collinsia
_Comandra_ Nutt. comandra
_pallida_ A. DC. pale c.
_richardsiana_ Fern. richards c.
_Conium maculatum_ L. poisonhemlock
_Conobea multifida_ (Michx.) Benth.
[_Leucospora m._ (Michx.) Nutt.] paleseed
_Conringia orientalis_ (L.) Dumort. treacle haresear
_Convolvulus_ L. bindweed
_arvensis_ L. field b.
_incanus_ Vahl gray b.
_sepium_ L. (including _C. interior_
House of manuals) hedge b.
_Conyza_ L. conyza
_canadensis_ (L.) Cron. [_Erigeron
c._ L., _Leptilon c._ (L.) Britt.] horseweed
_ramosissima_ Cron. (_Erigeron
divaricatus_ Michx.)
_Coreopsis_ L. coreopsis
_grandiflora_ Hogg bigflower c.
_palmata_ Nutt. finger c.
_tinctoria_ Nutt. plains c.
_Corispermum_ L. tickseed
_hyssopifolium_ L. hyssopleaf t.
_nitidum_ Kit. bugseed
_Corydalis_ Medic. corydalis
_aurea_ Willd. golden c.
_campestris_ (Britt.) Buchholz & Palmer plains c.
_crystallina_ Engelm. mealy c.
_flavula_ (Raf.) DC. pale c.
_micrantha_ (Engelm.) Gray smallflower c.
_Cristatella jamesii_ T. & G. cristatella
_Croton_ L. croton
_capitatus_ Michx. woolly c.
_glandulosus_ L. var. _septentrionalis_
Muell. Arg. tropic c.
_lindheimerianus_ Scheele threeseed c.
_monanthogynus_ Michx. oneseed c.
_texensis_ (Klotzsch) Muell. Arg. Texas c.
_Crotonopsis elliptica_ Willd. crotonopsis
_Cryptantha_ Lehm. (including _Oreocarya_
Greene) cryptantha
_crassisepala_ (T. & G.) Greene thicksepal c.
_jamesii_ (Torr.) Payson [_O.
suffruticosa_ (Torr.) Greene] james c.
_Cucurbita foetidissima_ HBK. buffalogourd
_Cuphea petiolata_ (L.) Koehne clammy cuphea
_Cuscuta_ L. dodder
_cephalanthi_ Engelm. buttonbush d.
_coryli_ Engelm. hazel d.
_cuspidata_ Engelm. cusp d.
_glomerata_ Choisy cluster d.
_indecora_ Choisy showy d.
_pentagona_ Engelm. field d.
_polygonorum_ Engelm. smartweed d.
_Cyclanthera dissecta_ (T. & G.) Arn. cyclanthera
_Cycloloma atriplicifolium_
(Spreng.) Coult. tumble ringwing
_Cymopterus_ Raf. cymopterus
_acaulis_ (Pursh) Raf. stemless c.
_montanus_ (Nutt.) T. & G.
(_Phellopterus m._ Nutt.) mountain corkwing
_Cynoglossum_ L. houndstongue
_officinale_ L. common h.
_virginianum_ L. wildcomfrey h.
_Dasistoma macrophylla_ (Nutt.) Raf. oakleech
_Datura_ L. datura
_innoxia_ Mill. (_D. meteloides_ DC.,
_D. metel_ of manuals, not L.) sacred d.
_stramonium_ L. jimsonweed
_Daucus_ L. carrot
_carota_ L. wild c.
_pusillus_ Michx. southwestern c.
_Delphinium_ L. larkspur
_ajacis_ L. rocket l.
_tricorne_ Michx. dwarf l.
_virescens_ Nutt. plains l.
_Dentaria laciniata_ Muhl. cutleaf toothwort
_Descurainia_ Webb & Berthelot tansymustard
_pinnata_ (Walt.) Britt. [including
_D. intermedia_ (Rydb.) Daniels,
& _D. magna_ Rydb.] pinnate t.
_sophia_ (L.) Webb flixweed t.
_Dianthera_ (see _Justicia_)
_Diaperia prolifera_ Nutt. diaperia
_Dicentra cucullaria_ (L.) Bernh. dutchmans-breeches
_Dicliptera brachiata_ (Pursh) Spreng. dicliptera
_Diodia teres_ Walt. rough buttonweed
_Ditaxis_ Vahl ditaxis
_humilis_ (Engelm. & Gray) Pax low d.
_mercurialina_ (Nutt.) Coult. tall d.
_Dodecatheon meadia_ L. common shootingstar
_Draba_ L. draba
_brachycarpa_ Nutt. shortpod d.
_cuneifolia_ Nutt. wedgeleaf d.
_reptans_ (Lam.) Fern.
(_D. caroliniana_ Walt.) carolina d.
_Dracopis amplexicaulis_ (Vahl) Cass.
(_Rudbeckia a._ Vahl) clasping coneflower
_Dyssodia papposa_ (Vent.) Hitchc. prairie dogweed
_Echinacea_ Moench echinacea
_angustifolia_ DC. blacksamson e.
_atrorubens_ Nutt. [including
_E. paradoxa_ (Norton) Britt.] yellow e.
_pallida_ Nutt. pale e.
_Echinocereus_ Engelm. echinocereus
_reichenbachii_ (Terscheck) Haage jr.
(_E. caespitosus_ Engelm.) lace e.
_viridiflorus_ Engelm. greenpitaya e.
_Echinocystis lobata_ (Michx.) T. & G. wild mockcucumber
_Echium vulgare_ L. blueweed
_Eclipta alba_ (L.) Hassk. yerbadetajo
_Elephantopus carolinianus_ Willd. elephantsfoot
_Ellisia nyctelea_ L. ellisia
_Engelmannia pinnatifida_ T. & G. engelmanndaisy
_Epilobium_ L. willowweed
_angustifolium_ L. fireweed
_coloratum_ Biehler purpleleaf w.
_leptophyllum_ Raf. (_E. lineare_ of
manuals, not Muhl.) narrowleaf w.
_Erechtites hieracifolia_ (L.) Raf. American burnweed
_Erigeron_ L. (see also _Conyza_) fleabane
_annuus_ (L.) Pers. annual f.
_bellidiastrum_ Nutt. western f.
_flagellaris_ Gray trailing f.
_philadelphicus_ L. Philadelphia f.
_pumilus_ Nutt. low f.
_strigosus_ Muhl. [_E. ramosus_
(Walt.) BSP.] daisy f.
_Eriogonum_ Michx. eriogonum
_annuum_ Nutt. annual e.
_longifolium_ Nutt. longleaf e.
_Erodium cicutarium_ (L.) L’Her. filaree
_Eruca sativa_ Mill. rocketsalad
_Eryngium_ L. eryngo
_leavenworthii_ T. & G. leavenworth e.
_yuccifolium_ Michx. buttonsnakeroot e.
_Erysimum_ L. erysimum
_asperum_ (Nutt.) DC. plains e.
_inconspicuum_ (S. Wats.) MacM. smallflower e.
_repandum_ L. spreading e.
_Eulophus_ (see _Perideridia_)
_Eupatorium_ L. eupatorium; joepyeweed
_altissimum_ L. tall e.
_coelestinum_ L. mistflower e.
_maculatum_ L. spotted j.
_perfoliatum_ L. boneset
_purpureum_ L. (_E. falcatum_ Michx.) bluestem j.
_rugosum_ Houtt. (_E. urticaefolium_
Reichard) white snakeroot
_serotinum_ Michx. late e.
_Euphorbia_ L. [including _Tithymalus_
(Tourn.) Adans., & _Chamaesyce_
Small] euphorbia; spurge
_corollata_ L. flowering s.
_dentata_ Michx. [including _E.
cuphosperma_ (Engelm.) Boiss.] toothed e.
_dictyosperma_ Fisch. & Mey. warty e.
_esula_ L. leafy s.
_fendleri_ T. & G. (_E. greenei_ in
Rydb.’s floras) fendler e.
_geyeri_ Engelm. geyer e.
_glyptosperma_ Engelm. ridgeseed e.
_heterophylla_ L. painted e.
_hexagona_ Nutt. sixangle e.
_humistrata_ Engelm. spreading e.
_lata_ Engelm. hoary e.
_maculata_ L. (variously known as _E.
hypericifolia_ L., _E. hyssopifolia_
L., _E. nutans_ Lag., & _E. preslii_
Guss.) spotted e.
_marginata_ Pursh snow-on-the-mountain
_missurica_ Raf. [including _E. nuttallii_
(Engelm.) Small, & _E. petaloidea_
Engelm.] Missouri s.
_obtusata_ Pursh roughpod e.
_serpens_ HBK. serpent e.
_serpyllifolia_ Pers. thymeleaf e.
_stictospora_ Engelm. slimseed e.
_supina_ Raf. (called _E. maculata_ L.
in manuals) prostrate s.
_Eustoma russellianum_ (Hook.) Griseb. russell prairiegentian
_Evolvulus nuttallianus_ R. & S. nuttall evolvulus
_Fagopyrum sagittatum_ Gilib. (_F.
esculentum_ Moench) common buckwheat
_Flaveria campestris_ J. R. Johnston flaveria
_Fragaria virginiana_ Duchesne wild strawberry
_Franseria_ Cav. bursage
_acanthicarpa_ (Hook.) Coville variable b.
_confertiflora_ (DC.) Rydb. (_F.
tenuifolia_ Harv. & Gray) slimleaf b.
_tomentosa_ Gray burragweed
_Froelichia_ Moench snakecotton
_floridana_ (Nutt.) Moq. var.
_campestris_ (Small) Fern.
(_F. campestris_ Small) field s.
_gracilis_ (Hook.) Moq. slender s.
_Gaillardia_ Foug. gaillardia
_aristata_ Pursh common perennial g.
_drummondii_ (Hook.) DC. drummond g.
_fastigiata_ Greene prairie g.
_pulchella_ Foug. (_G. aristosa_
of manuals) rosering g.
_Galinsoga ciliata_ (Raf.) Blake
(_G. aristulata_ Bickn.) fringed quickweed
_Galium_ L. bedstraw
_aparine_ L. catchweed b.
_circaezans_ Michx. var.
_hypomalacum_ Fern. woods b.
_concinnum_ T. & G. shining b.
_obtusum_ Bigel. bluntleaf b.
_pilosum_ Ait. hairy b.
_tinctorium_ L. dye b.
_triflorum_ Michx. fragrant b.
_Gaura_ L. gaura
_biennis_ L. biennial g.
_coccinea_ Pursh scarlet g.
_parviflora_ Dougl. smallflower g.
_villosa_ Torr. hairy g.
_Gentiana puberula_ Michx. downy gentian
_Geranium_ L. geranium
_carolinianum_ L. Carolina g.
_maculatum_ L. spotted g.
_Gerardia_ L. gerardia
_aspera_ Dougl. rough g.
_auriculata_ Michx. [_Tomanthera a._
(Michx.) Raf.] earleaf g.
_densiflora_ Benth. [_Tomanthera d._
(Benth.) Raf.] fineleaf g.
_grandiflora_ Benth. [_Aureolaria g._
(Benth.) Pennell] bigflower g.
_skinneriana_ Wood rose g.
_tenuifolia_ Vahl slender g.
_Geum_ L. avens
_canadense_ Jacq. white a.
_vernum_ (Raf.) T. & G. heartleaf a.
_Gilia_ R. & P. gilia
_laxiflora_ (Coult.) Osterh. irion g.
_longiflora_ (Torr.) G. Don whiteflower g.
_spicata_ Nutt. spike g.
_Glechoma hederacea_ L. [_Nepeta h._
(L.) Trevisan] groundivy
_Gnaphalium_ L. cudweed
_obtusifolium_ L. fragrant c.
_purpureum_ L. purple c.
_Gonolobus_ (see _Ampelamus_)
_Gossypium hirsutum_ L. upland cotton
_Gratiola_ L. hedgehyssop
_aurea_ Muhl. (_G. lutea_ Raf. in part) golden h.
_virginiana_ L. Virginia h.
_Grindelia_ Willd. gumweed
_lanceolata_ Nutt. spinytooth g.
_squarrosa_ (Pursh) Dunal curlycup g.
_Gutierrezia_ Lag. snakeweed
_dracunculoides_ (DC.) Blake
[_Amphiachyris d._ (DC.) Nutt.] broomweed
_sarothrae_ (Pursh) Britt. & Rusby
(including _G. diversifolia_ Greene,
& _G. linearis_ Rydb.) broom s.
_Hackelia virginiana_ (L.) I. M. Johnston
[_Lappula v._ (L.) Greene] Virginia stickseed
_Haplopappus_ Endl. (including _Aplopappus_
Cass., _Sideranthus_ Sweet, &
_Oonopsis_ Greene) goldenweed
_ciliatus_ (Nutt.) DC. (_Prionopsis
ciliata_ Nutt.) wax g.
_divaricatus_ (Nutt.) Gray
[_Isopappus d._ (Nutt.) T. & G.] slender g.
_englemannii_ Z. (Gray) Hall
[_Oonopsis e._ (Gray) Greene] englemann g.
_phyllocephalus_ DC.
(_Sideranthus annuus_ Rydb.) annual g.
_spinulosus_ (Pursh) DC. [_Sideranthus
s._ (Pursh) Sweet] ironplant
_Hedeoma_ Pers. falsepennyroyal
_drummondii_ Benth. drummond f.
_hispida_ Pursh rough f.
_pulegioides_ (L.) Pers. American f.
_Helenium_ L. sneezeweed
_autumnale_ L. common s.
_nudiflorum_ Nutt. purplehead s.
_tenuifolium_ Nutt. bitter s.
_Helianthemum bicknellii_ Fern. sunrose
_Helianthus_ L. sunflower
_annuus_ L. (including
_H. lenticularis_ Dougl.) common s.
_grosseserratus_ Martens sawtooth s.
_hirsutus_ Raf. [_H. leptocaulis_
(Wats.) Blake (including _H.
virilis_ Wats.)] hairy s.
_laetiflorus_ Pers. [including _H.
rigidus_ (Cass.) Desf., &
_H. severus_ Wats.] stiff s.
_maximiliani_ Schrad. maximilian s.
_mollis_ Lam. ashy s.
_petiolaris_ Nutt. prairie s.
_salicifolius_ A. Dietr. willowleaf s.
_tuberosus_ L. (including
_H. mollissimus_ E. E. Wats.) jerusalemartichoke
_Heliopsis helianthoides_ (L.) Sweet
var. _scabra_ (Dunal) Fern. rough heliopsis
_Heliotropium_ L. heliotrope
_convolvulaceum_ (Nutt.) Gray bindweed h.
_spathulatum_ Rydb. wild h.
_tenellum_ (Nutt.) Torr. pasture h.
_Hesperis matronalis_ L. dames rocket
_Heterotheca subaxillaris_ (Lam.)
Britt. & Rusby camphorweed
_Heuchera richardsonii_ R. Br. var.
_grayana_ Rosend., Butt., & Lak. alumroot
_Hibiscus_ L. hibiscus; rosemallow
_esculentus_ L. okra
_militaris_ Cav. scarlet r.
_trionum_ L. flowerofanhour
_Hieracium longipilum_ Torr. longbeard hawkweed
_Houstonia_ L. bluets
_minima_ Beck tiny b.
_nigricans_ (Lam.) Fern.
(_H. angustifolia_ Michx.) narrowleaf b.
_Humulus lupulus_ L. hop
_Hybanthus verticillatus_ (Ortega) Baill.
[_Calceolaria verticillata_
(Ortega) Ktze.] Northamerican calceolaria
_Hydrophyllum_ L. waterleaf
_appendiculatum_ Michx. notchbract w.
_virginianum_ L. Virginia w.
_Hymenopappus_ L’Her. hymenopappus
_corymbosus_ T. & G. flattop h.
_scabiosaeus_ L’Her. whitebract h.
_tenuifolius_ Pursh slimleaf h.
_Hymenoxys_ Cass. (_Actinea_ Juss.,
_Tetraneuris_ Greene,
_Actinella_ Pers.) hymenoxys
_acaulis_ (Pursh) Parker [_Tetraneuris
a._ (Pursh) Greene] stemless h.
_odorata_ DC. [_Actinea o._ (DC.) Ktze.,
& _Actinella o._ (DC.) Gray] bitterweed
_scaposa_ (DC.) Parker var. _linearis_
(Nutt.) Parker (_Tetraneuris
fastigiata_ Greene) plains h.
_Hypericum_ L. St. johnswort
_drummondii_ (Grev. & Hook.) T. & G. drummond S.
_mutilum_ L. dwarf S.
_perforatum_ L. common S.
_punctatum_ Lam. spotted S.
_sphaerocarpum_ Michx. roundfruit S.
_Impatiens_ L. snapweed
_biflora_ Walt. spotted s.
_nortoni_ Rydb. norton s.
_pallida_ Nutt. pale s.
_Iodanthus pinnatifidus_ (Michx.) Steud. purplerocket
_Ipomoea_ L. morningglory
_batatas_ Lam. sweetpotato
_hederacea_ (L.) Jacq. ivyleaf m.
_lacunosa_ L. white m.
_leptophylla_ Torr. bush m.
_pandurata_ (L.) G. F. W. Mey. bigroot m.
_purpurea_ (L.) Roth common m.
_Isanthus brachiatus_ (L.) BSP. fluxweed
_Isopyrum biternatum_ (Raf.) T. & G. Atlantic isopyrum
_Iva_ L. sumpweed
_ciliata_ Willd. seacoast s.
_xanthifolia_ Nutt. rag s.
_Jussiaea repens_ L. var. _glabrescens_
Ktze. (_J. diffusa_ of manuals,
not Forsk.) floating waterprimrose
_Justicia americana_ (L.) Vahl
(_Dianthera a._ L.) American dianthera
_Kallstroemia_ Scop. caltrop
_hirsutissima_ Vail hairy c.
_intermedia_ Rydb. intermediate c.
_Kochia_ Roth kochia
_Krameria lanceolata_ Torr.
(_K. secundiflora_ of manuals,
not DC.) trailing krameria
_Krigia_ Schreb. dwarfdandelion
_dandelion_ (L.) Nutt.
[_Cynthia d._ (L.) DC.] tube d.
_occidentalis_ Nutt.
[_Cymbia o._ (Nutt.) Standl.] western d.
_oppositifolia_ Raf. [_Serinia
o._ (Raf.) Ktze.] common d.
_Kuhnia_ L. kuhnia
_eupatorioides_ L. (_K. suaveolens_
Fresen.; _K. hitchcockii_ A. Nels.) falseboneset
_Lactuca_ L. lettuce
_canadensis_ L. Canada l.
_floridana_ (L.) Gaertn. Florida l.
_ludoviciana_ (Nutt.) DC. Louisiana l.
_pulchella_ (Pursh) DC. chicory l.
_scariola_ L. (_L. serriola_ L.;
_L. virosa_ of manuals, not L.) prickly l.
_Lamium amplexicaule_ L. henbit
_Laportea canadensis_ (L.) Gaud. woodnettle
_Lappula_ Moench stickseed
_echinata_ Gilib. European s.
_redowskii_ (Hornem.) Greene [_L.
occidentalis_ (S. Wats.) Greene] flatspine s.
_texana_ (Scheele) Britt.
(_L. heterosperma_ Greene) cupseed s.
_Lechea tenuifolia_ Michx. pinweed
_Leonurus cardiaca_ L. common motherwort
_Lepidium_ L. pepperweed
_campestre_ (L.) R. Br. field p.
_densiflorum_ Schrad. peppergrass
_perfoliatum_ L. clasping p.
_ramosissimum_ Nels. manybranch p.
_virginicum_ L. Virginia p.
_Lesquerella_ S. Wats. bladderpod
_gracilis_ (Hook.) S. Wats. [including
_L. repanda_ (Nutt.) S. Wats.] spreading b.
_ludoviciana_ (Nutt.) S. Wats. Louisiana b.
_ovalifolia_ Rydb. ovalleaf b.
_Leucelene ericoides_ (see _Aster arenosus_)
_Liatris_ Schreb. gayfeather
_angustifolia_ (Bush) Gaiser narrowleaf g.
_kansana_ (Britt.) Rydb. Kansas g.
_punctata_ Hook. dotted g.
_pycnostachya_ Michx. thickspike g.
_scariosa_ (L.) Willd. tall g.
_squarrosa_ (L.) Michx. scaly g.
_Linaria_ Mill. toadflax
_canadensis_ (L.) Dum. var. _canadensis_ oldfield t.
_canadensis_ var. _texana_
(Scheele) Pennell Texas t.
_vulgaris_ Hill butter-and-eggs t.
_Lindernia_ All. falsepimpernel
_anagallidea_ (Michx.) Pennell clasping f.
_dubia_ (L.) Pennell yellowseed f.
_Linum_ L. flax
_compactum_ A. Nels.
_lewisii_ Pursh [_L. pratense_
(Norton) Small] lewis f.
_rigidum_ Pursh stiffstem f.
_sulcatum_ Riddell grooved f.
_usitatissimum_ L. common f.
_Lippia_ L. lippia
_cuneifolia_ (Torr.) Steud. wedgeleaf fogfruit
_lanceolata_ Michx. var. _recognita_
Fern. & Grisc. lanceleaf l.
_Lithospermum_ L. gromwell
_arvense_ L. corn g.
_canescens_ (Michx.) Lehm. hoary g.
_incisum_ Lehm. (_L. angustifolium_
Michx., & _L. linearifolium_ Goldie) narrowleaf g.
_latifolium_ Michx. American g.
_Lobelia_ L. lobelia
_cardinalis_ L. cardinalflower
_siphilitica_[44] L. bigblue l.
_spicata_ Lam. palespike l.
_splendens_ Willd. western cardinalflower
_Lomatium_ Raf. lomatium
_foeniculaceum_ (Nutt.) C. & R.
[including _L. daucifolium_ (Nutt.)
C. & R., & _L. villosum_ Raf.] carrotleaf l.
_orientale_ C. & R. eastern l.
_Lonicera_ L. honeysuckle
_Ludwigia_ L. seedbox
_alternifolia_ L. bushy s.
_palustris_ (L.) Ell. var. _americana_
(DC.) Fern. & Grisc. marsh s.
_polycarpa_ Short & Peter manyseed s.
_Lychnis alba_ Mill. white cockle
_Lycopersicum esculentum_ Mill. tomato
_Lycopus_ L. bugleweed
_americanus_ Muhl. American b.
_asper_ Greene (_L. lucidus_ Turcz.) rough b.
_virginicus_ L. Virginia b.
_Lygodesmia_ D. Don skeletonplant
_juncea_ (Pursh) D. Don rush s.
_rostrata_ Gray beaked s.
_Lysimachia_ L. (including _Steironema_
Raf.) loosestrife
_ciliata_ L. fringed l.
_nummularia_ L. moneywort
_Lythrum alatum_ Pursh winged lythrum
_Machaeranthera_ Nees (see _Aster_)
_Macuillamia_ (see _Bacopa_)
_Malacothrix sonchoides_ (Nutt.) T. & G. sowthistle malacothrix
_Malva_ L. mallow
_neglecta_ Wallr. common m.
_rotundifolia_ L. running m.
_sylvestris_ L. high m.
_verticillata_ L. cluster m.
_Mamillaria_ Haw. (_Neomamillaria_ Britt.) mamillaria
_missouriensis_ Sweet (including
_M. similis_ Engelm.) Missouri m.
_vivipara_ (Nutt.) Haw. [including
_Neomamillaria radiosa_ (Engelm.)
Rybd.]
_Marrubium vulgare_ L. common hoarhound
_Martynia_ (see _Proboscidea_)
_Melampodium cinereum_ DC.
(_M. leucanthum_ T. & G.) plains blackfoot
_Menispermum canadense_ L. common moonseed
_Mentha arvensis_ L. field mint
_Mentzelia_ L. mentzelia
_decapetala_ (Pursh) Urban & Gilg tenpetal m.
_nuda_ (Pursh) T. & G. var. _stricta_
(Osterh.) Harrington [_M. stricta_
(Osterh.) Stevens ex Jeff. & Little] bractless m.
_oligosperma_ Nutt. stickleaf m.
_Microseris cuspidata_ (Pursh) Schultz-Bip.
[_Agoseris c._ (Pursh) Raf.] wavyleaf agoseris
_Mimulus_ L. monkeyflower
_alatus_ Ait. sharpwing m.
_glabratus_ HBK. roundleaf m.
_ringens_ L. Alleghany m.
_Mirabilis_ L. (including _Oxybaphus_
L’Her., & _Allionia_ Loefl.) four-o’clock
_albida_ (Walt.) Heimerl white f.
_carletoni_ (Standl.) Standl. carleton f.
_hirsuta_ (Pursh) MacM. hairy f.
_linearis_ (Pursh) Heimerl narrowleaf f.
_nyctaginea_ (Michx.) MacM. prairie f.
_Mollugo verticillata_ L. carpetweed
_Monarda_ L. beebalm
_citriodora_ Cerv. lemon b.
_clinopodioides_ Gray basil b.
_fistulosa_ L. var. _menthaefolia_
(Graham) Fern. (_M.
menthaefolia_ Graham) mintleaf b.
_fistulosa_ L. var. _mollis_ (L.) Benth.
(_M. mollis_ L.) wildbergamot b.
_punctata_ L. subsp. _occidentalis_ Epl.
(_M. pectinata_ Nutt.) spotted b.
_Monolepis nuttalliana_ (R. & S.) Greene nuttall monolepis
_Myosotis verna._ Nutt. (_M. virginica_
of manuals) Virginia forgetmenot
_Myosurus minimus_ L. tiny mousetail
_Myriophyllum_ L. parrotfeather
_heterophyllum_ Michx. changeleaf p.
_pinnatum_ (Walt.) BSP. green p.
_Nasturtium officinale_ R. Br. nasturtium
_Nelumbo lutea_ (Willd.) Pers.
[?_N. pentapetala_ (Walt.) Fern.] American lotus
_Nepeta_ L. (see also _Glechoma_) nepeta
_cataria_ L. catnip
_Nicotiana_ L. tobacco
_Nuphar advena_ (Ait.) Ait. f. spatterdock cowlily
_Nymphaea odorata_ Ait. American waterlily
_Oënothera_ L. eveningprimrose
_albicaulis_ Pursh pale e.
_biennis_ L. common e.
_biennis_ L. var. _hirsutissima_ Gray
[_O. strigosa_ (Rydb.) Mackenz. & Bush] bristly-common e.
_canescens_ Torr. & Frem. beakpod e.
_coronopifolia_ T. & G. combleaf e.
_fremontii_ S. Wats. fremont e.
_hartwegii_ Benth. var. _fendleri_ Gray fendler e.
_hookeri_ T. & G. hooker e.
_laciniata_ Hill cutleaf e.
_lavandulaefolia_ T. & G. lavenderleaf e.
_linifolia_ Nutt. narrowleaf e.
_missouriensis_ Sims Missouri e.
_rhombipetala_ Nutt. fourpoint e.
_serrulata_ Nutt. serrateleaf e.
_speciosa_ Nutt. white e.
_tetragona_ Roth var. _latifolia_ (Rydb.)
Fern. (_Kneiffia latifolia_ Rydb.) broadleaf e.
_triloba_ Nutt. stemless e.
_Onosmodium_ Michx. marbleseed
_hispidissimum_ Mackenz. rough m.
_occidentale_ Mackenz. western m.
_Oonopsis engelmannii_ (see _Haplapappus_)
_Opuntia_ Mill. pricklypear; cholla
_arborescens_ Engelm. [_O. imbricata_
(Haw.) DC.] walkingstick c.
_fragilis_ (Nutt.) Haw. brittle p.
_humifusa_ Raf. common p.
_macrorhiza_ Engelm. bigroot p.
_polyacantha_ Haw. plains p.
_tortispina_ Engelm. twistspine p.
_Oreocarya_ (see _Cryptantha_)
_Orobanche_ L. broomrape
_ludoviciana_ Nutt. Louisiana b.
_uniflora_ L. ghostpipe
_Osmorhiza longistylis_ (Torr.) DC. longstyle sweetroot
_Othake_ (see _Palafoxia_)
_Oxalis_ L. oxalis
_europaea_ Jord. European yellow o.
_stricta_ L. common yellow o.
_violacea_ L. violet woodsorrel o.
_Oxybaphus_ (included in _Mirabilis_)
_Palafoxia spacelata_ (Nutt.) Cory
[_Othake s._ (Nutt.) Rydb.] othake
_Parietaria pensylvanica_ Muhl. pellitory
_Paronychia_ Mill. nailwort
_canadensis_ (L.) Wood
[_Anychia c._ (L.) BSP.] Canada n.
_fastigiata_ (Raf.) Fern. (_Anychia
polygonoides_ Raf.) forked n.
_jamesii_ T. & G. james n.
_Parthenium integrifolium_ L. parthenium
_Pastinaca sativa_ L. parsnip
_Pectis angustifolia_ Torr. pectis
_Pedicularis canadensis_ L. pedicularis
_Penstemon_ Mitchell penstemon
_albidus_ Nutt. white p.
_ambiguus_ Torr. gilia p.
_angustifolius_ Nutt. ex Pursh, subsp.
_caudatus_ (Heller) Keck narrowleaf p.
_buckleyi_ Pennell buckley p.
_cobaea_ Nutt. cobaea p.
_digitalis_ Nutt. smooth p.
_grandiflorus_ Nutt. shell-leaf p.
_pallidus_ Small pale p.
_tubaeflorus_ Nutt. tube p.
_Penthorum sedoides_ L. penthorum
_Perideridia americana_ (Nutt.) Reichenb.
(_Eulophus a._ Nutt.) eulophus
_Perilla frutescens_ (L.) Britt. common perilla
_Phacelia_ Juss. phacelia
_gilioides_ A. Brand (_P. hirsuta_ of
many SW botanists, not Nutt.) hairy p.
_integrifolia_ Torr. gyp p.
_Phellopterus_ (see _Cymopterus_)
_Phlox_ L. phlox
_bifida_ Beck tenpoint p.
_divaricata_ L. sweetwilliam p.
_paniculata_ L. summer p.
_pilosa_ L. prairie p.
_Phryma leptostachya_ L. lopseed
_Physalis_ L. groundcherry
_angulata_ L. cutleaf g.
_comata_ Rydb. hillside g.
_heterophylla_ Nees [including _P.
ambigua_ (Gray) Rydb.] clammy g.
_ixocarpa_ Brotero tomatillo g.
_lanceolata_ Michx. lanceleaf g.
_lobata_ Torr. [_Quincula_ l. (Torr.) Raf.] chineselantern
_longifolia_ Nutt. spearleaf g.
_macrophysa_ Rydb. bladder g.
_missouriensis_ Mackenz. & Bush Missouri g.
_pendula_ Rydb. purplevein g.
_pruinosa_ L. hairy g.
_pubescens_ L. downy g.
_pumila_ Nutt. prairie g.
_rotundata_ Rydb. roundleaf g.
_subglabrata_ Mackenz. & Bush taperleaf g.
_virginiana_ Mill. Virginia g.
_Physostegia_ Benth. lionsheart
_intermedia_ (Nutt.) Engelm. & Gray intermediate l.
_virginiana_ (L.) Benth. Virginia l.
_Phytolacca americana_ L.
(_P. decandra_ L.) common pokeberry
_Picradeniopsis_ (see _Bahia_)
_Pilea pumila_ (L.) A. Gray clearweed
_Plantago_ L. plantain
_aristata_ Michx. bottlebrush p.
_lanceolata_ L. buckhorn p.[45]
_purshii_ R. & S. woolly p.
_pusilla_ Nutt. (_P. elongata_
of manuals, not Pursh) slender p.
_rhodosperma_ Dcne. redseed p.
_rugelii_ Dcne. blackseed p.
_spinulosa_ Dcne. brittlebract p.
_virginica_ L. paleseed p.
_Podophyllum peltatum_ L. common mayapple
_Polanisia trachysperma_ T. & G. roughseed clammyweed
_Polemonium reptans_ L. creeping polemonium
_Polygala_ L. polygala
_alba_ Nutt. white p.
_incarnata_ L.
_sanguinea_ L. (including
_P. viridescens_ L.) blood p.
_verticillata_ L. whorled p.
_Polygonum_ L. (see also _Tovara_) knotweed; smartweed
_aviculare_ L. (including
_P. buxiforme_ Small) prostrate k.
_coccineum_ Muhl. swamp s.
_convolvulus_ L. climbing-buckwheat
_erectum_ L. erect k.
_hydropiper_ L. marshpepper s.
_hydropiperoides_ Michx. swamp s.
_lapathifolium_ L. (including
_P. tomentosum_ of manuals) curltop s.
_longistylum_ Small longstyle s.
_pensylvanicum_ L. (including
_P. omissum_ Greene) Pennsylvania s.
_persicaria_ L. ladysthumb s.
_persicarioides_ HBK. southwest s.
_punctatum_ Ell. dotted s.
_ramosissimum_ Michx. bushy k.
_tenue_ Michx. slim k.
_Polytaenia nuttalii_ DC. polytaenia
_Portulaca_ L. portulaca; purslane
_oleracea_ L. common purslane
_parvula_ Gray slenderleaf purslane
_Potentilla_ L. cinquefoil
_arguta_ Pursh clammy c.
_norvegica_ L. Norwegian c.
_paradoxa_ Nutt. bushy c.
_rivalis_ Nutt. brook c.
_simplex_ Michx. (_P. canadensis_
of manuals, not L.) oldfield c.
_sulfurea_ Lam.
_Prenanthes aspera_ Michx. rough rattlesnakeroot
_Prionopsis ciliata_ (see
_Haplopappus ciliatus_)
_Proboscidea louisianica_ (Mill.) Thell.
(_Martynia l._ Mill.) common devilsclaw
_Prunella vulgaris_ L. var. _lanceolata_
(Bart.) Fern. common selfheal
_Psilostrophe villosa_ Rydb. paperflower
_Ptilimnium nuttallii_ (DC.) Brit. mockbishopweed
_Ptiloria_ (see _Stephanomeria_)
_Pycnanthemum_ Michx. mountainmint
_flexuosum_ (Walt.) BSP. slender m.
_pilosum_ Nutt. woods m.
_Pyrrhopappus_ DC. falsedandelion
_carolinianus_ (Walt.) DC. Carolina f.
_scaposus_ DC. (_P. grandiflorus_ Nutt.) tuber f.
_Quincula_ (see _Physalis_)
_Ranunculus_ L. buttercup; crowfoot
_abortivus_ L. littleleaf b.
_acris_ L. tall b.
_cymbalaria_ Pursh shore b.
_fascicularis_ Muhl. tufted b.
_flabellaris_ Raf. threadleaf b.
_hispidus_ Michx. bristly b.
_longirostris_ Godr. longbeak b.
_sceleratus_ L. cursed c.
_Raphanus_ L. radish
_Ratibida_ Raf. prairieconeflower
_columnifera_ (Nutt.) Woot. & Standl. upright p.
_pinnata_ (Vent.) Barnh. grayhead p.
_tagetes_ (James) Barnh. shortray p.
_Rheum_ L. rhubarb
_Ricinus communis_ L. castorbean
_Rorippa Scop._ (see also _Armoracia_) yellowcress; marshcress
_islandica_ (Oeder) Borbas [including
_R. hispida_ (DC.) Britt. &
_R. palustris_ (L.) Bess.] bog y.
_sessiliflora_ (Nutt.) Hitchc. stalkless y.
_sinuata_ (Nutt.) Hitchc. spreading y.
_Rotala ramosior_ (L.) Koehne var.
_interior_ Fern. & Grisc. rotala
_Rudbeckia_ L. (see also _Dracopis_) coneflower
_grandiflora_ (D. Don) Gmel. rough c.
_hirta_ L. blackeyedsusan
_laciniata_ L. cutleaf c.
_subtomentosa_ Pursh sweet c.
_triloba_ L. browneyedsusan
_Ruellia_ L. ruellia
_humilis_ Nutt. (_R. ciliosa_ of manuals,
in part; _R. caroliniensis_ of
manuals, in part) fringeleaf r.
_strepens_ L. limestone r.
_Rumex_ L. dock; sorrel
_acetosella_ L. red s.
_altissimus_ Wood pale d.
_crispus_ L. curled d.
_hastatulus_ Baldw. heartwing s.
_maritimus_ L. var. _fueginus_ (Phil.)
Dusen (_R. persicarioides_ of manuals,
not L.) golden d.
_obtusifolius_ L. bitter d.
_patientia_ L. patience d.
_venosus_ Pursh veiny d.
_Sabatia_[46] _campestris_ Nutt. prairie rosegentian
_Sagina decumbens_ (Ell.) T. & G. trailing pearlwort
_Salsola kali_ L. (_S. pestifer_ Nels.) russianthistle
_Salvia_ L. sage
_azurea_ Lam. var. _grandiflora_ Benth.
(_S. pitcheri_ Torr.) pitcher s.
_officinalis_ L. garden s.
_reflexa_ Hornem. (including _S.
lanceolata_ Willd., & _S. lanceafolia_
of authors, not Poir.) lanceleaf s.
_Samolus parviflorus_ Raf. samolus
_Sanguinaria canadensis_ L. bloodroot
_Sanicula_ L. sanicle
_canadensis_ L. Canada s.
_gregaria_ Bickn. cluster s.
_marilandica_ L. black s.
_Saponaria_ L. soapwort
_officinalis_ L. bouncingbet
_vaccaria_ L. (_Vaccaria vulgaris_ Host) cow s.
_Scrophularia_ L. figwort
_lanceolata_ Pursh lanceleaf f.
_marilandica_ L. Maryland f.
_Scutellaria_ L. skullcap
_incana_ Biehler hoary s.
_lateriflora_ L. sideflowering s.
_ovata_ Hill eggleaf s.
_parvula_ Michx. var. _australis_ Fassett
[_S. australis_ (Fassett) Epling] southern-small s.
_parvula_ Michx. var. _leonardi_ (Epling)
Fern. (_S. leonardi_ Epling) leonard-small s.
_parvula_ Michx. var. _parvula_ small s.
_resinosa_ Torr. resinous s.
_Sedum_ L. stonecrop
_Selenia aurea_ Nutt. golden selenia
_Senecio_ L. groundsel
_aureus_ L. golden g.
_integerrimus_ Nutt. lambstongue g.
_obovatus_ Muhl. roundleaf g.
_plattensis_ Nutt. prairie g.
_riddellii_ T. & G. riddell g.
_tridenticulatus_ Rydb.
_Sesamum indicum_ L. sesame
_Sicyos angulatus_ L. burcucumber
_Sida spinosa_ L. prickly sida
_Sideranthus_ (see _Haplopappus_)
_Silene_ L. silene
_antirrhina_ L. sleepy s. (sleepy
catchfly)
_cucubalus_ Wibel [_S. latifolia_ (Mill.)
Britten & Rendle, _S. vulgaris_ (Moench)
Garcke, & _S. inflata_ Sm.] cowbell s.
_noctiflora_ L. nightflowering s.
_stellata_ (L.) Ait. f. starry s.
_Silphium_ L. rosinweed
_integrifolium_ Michx. (including
_S. speciosum_ Nutt.) wholeleaf r.
_laciniatum_ L. compassplant
_perfoliatum_ L. cup r.
_Sisymbrium_ L. sisymbrium
_altissimum_ L. tumblemustard
_officinale_ (L.) Scop. hedgemustard
_Solanum_ L. nightshade
_carolinense_ L. horsenettle
_elaeagnifolium_ Cav. silverleaf n.
_nigrum_ L. black n.
_rostratum_ Dunal buffalobur n.
_torreyi_ Gray torrey n.
_triflorum_ Nutt. cutleaf n.
_tuberosum_ L. potato
_Solidago_ L. goldenrod
_altissima_ L. (including some Kansas
specimens called _S. dumetorum_
Lunell) tall g.
_angusta_ T. & G.
(_S. lindheimeriana_ Scheele)
_canadensis_ L. Canada g.
_gigantea_ Ait. (including
_S. serotina_ Ait.) November g.
_graminifolia_ (L.) Salisb. [_Euthamia g._
(L.) Nutt.] grassleaf g.
_gymnospermoides_ (Greene) Fern.
(_Euthamia g._ Greene) sticky g.
_missouriensis_ Nutt. (including _S.
glaberrima_ Martens &
_S. moritura_ Steele) Missouri g.
_mollis_ Bartl. ashy g.
_nemoralis_ Ait. dyersweed g.
_petiolaris_ Ait. downy g.
_pruinosa_ Greene (including some Kansas
specimens called _S. dumetorum_ Lunell)
_rigida_ L. stiff g.
_sparsiflora_ Gray (_S. trinervata_ Greene) threenerve g.
_speciosa_ Nutt. var. _rigidiuscula_ T. & G.
[_S. rigidiuscula_ (T. & G.) Porter] showywand g.
_speciosa_ Nutt. var. _speciosa_ noble g.
_ulmifolia_ Muhl. elmleaf g.
_Sonchus_ L. sowthistle
_arvensis_ L. perennial s.
_asper_ (L.) Hill prickly s.
_oleraceus_ L. common s.
_Specularia_ Fabricius venuslookingglass
_biflora_ (R. & P.) Fisch. & Mey. small v.
_leptocarpa_ (Nutt.) Gray slimpod v.
_perfoliata_ (L.) A. DC. clasping v.
_Spermolepis_ Raf. spermolepis
_divaricata_ (Walt) Britt. forked s.
_inermis_ (Nutt.) Math. & Const.
[_S. patens_ (Nutt.) Robins.] spreading s.
_Sphaeralcea_ St. Hil. globemallow
_angusta_ (Gray) Fern.
_angustifolia_ (Cav.) Don var.
_cuspidata_ Gray (_S. cuspidata_
of manuals) narrowleaf g.
_coccinea_ (Pursh) Rydb. scarlet g.
_Stachys tenuifolia_ Willd. slenderleaf betony
_Stanleya pinnata_ (Pursh) Britt. desert princesplume
_Steironema_ (included in _Lysimachia_)
_Stellaria media_ (L.) Cyrillo chickweed
_Stenosiphon linifolius_ (Nutt.) Britt. stenosiphon
_Stephanomeria pauciflora_ (Torr.) A. Nels.
[_Ptiloria_ p. (Torr.) Raf.] wirelettuce
_Stillingia sylvatica_ L. var. _salicifolia_
Torr. [_S. salicifolia_ (Torr.) Raf.] stillingia
_Striga lutea_ Lour. witchweed
_Suaeda depressa_ (Pursh) S. Wats. [including
_S. erecta_ (Wats.) A. Nels.] pursh seepweed (seablite)
_Taenidia integerrima_ (L.) Drude yellow taenidia
_Talinum_ Adans. fameflower
_calycinum_ Engelm. rockpink f.
_parviflorum_ Nutt. prairie f.
_Tanacetum vulgare_ L. common tansy
_Taraxacum_ Zinn dandelion
_laevigatum_ (Willd.) DC.
(_T. erythrospermum_ Andrz.) smooth d.
_officinale_ Weber (_T. vulgare_ Lam.) common d.
_Teucrium_ L. germander
_canadense_ L. var. _virginicum_ (L.) Eat. American g.
_laciniatum_ Torr. cutleaf g.
_occidentale_ Gray hairy g.
_Thalictrum dasycarpum_ Fisch. & Lall. purple meadowrue
_Thaspium_ Nutt. thaspium
_barbinode_ (Michx.) Nutt. hairyjoint t.
_trifoliatum_ (L.) Gray threeleaf t.
_Thelesperma_ Less. greenthread
_gracile_ (Torr.) Gray slender g.
_trifidum_ (Poir.) Britt. threecleft g.
_Thlaspi arvense_ L. pennycress
_Tidestromia lanuginosa_ (Nutt.) Standl. woolly tidestromia
_Tithymalus_ (see _Euphorbia_)
_Tomanthera_ (see _Gerardia_)
_Tovara virginiana_ (L.) Raf.
(_Polygonum v._ L.) Virginia tovara
_Townsendia sericea_ Hook. [_T. exscapa_
(Rich.) Porter] stemless townsendia
_Tragia urticifolia_ Michx.
(_T. nepetaefolia_ of manuals, not
Cav., including _T. ramosa_ of
manuals, not Torr.) nettleleaf noseburn
_Tragopogon_ L. salsify
_dubius_ Scop. (_T. major_ Jacq.) western s.
_porrifolius_ L. vegetable-oyster s.
_pratensis_ L. meadow s.
_Tribulus terrestris_ L. puncturevine
_Triosteum_ L. horsegentian
_aurantiacum_ Bickn. orange h.
_perfoliatum_ L. common h.
_Urtica procera_ Muhl. tall nettle
_Utricularia vulgaris_ L. common bladderwort
_Vaccaria_ (see _Saponaria_)
_Valerianella radiata_ (L.) Dufr. cornsalad
_Verbascum_ L. mullein
_blattaria_ L. moth m.
_thapsus_ L. flannel m.
_Verbena_ L. verbena
_bipinnatifida_ Nutt. Dakota v.
_bracteata_ Lag. & Rodr. bigbract v.
_canadensis_ (L.) Britt. rose v.
_hastata_ L. blue v.
_simplex_ Lehm. narrowleaf v.
_stricta_ Vent. woolly v.
_urticifolia_ L. white v.
_Verbesina_ L. crownbeard
_alternifolia_ (L.) Britt.
[_Actinomeris a._ (L.) DC.] wingstem
_encelioides_ (Cav.) B. & H.
(_Ximenesia e._ Cav.) golden c.
_virginica_ L. white c.
_Vernonia_ Schreb. ironweed
_baldwini_ Torr. var. _baldwini_ baldwin i.
_baldwini_ Torr. var. _interior_
(Small) Schub. inland i.
_crinita_ Raf. bur i.
_marginata_ (Torr.) Raf. plains i.
_Veronica_ L. speedwell
_arvensis_ L. common s.
_peregrina_ L. purslane s.
_polita_ Fries (_V. didyma_ Ten.) wayside s.
_salina_ Schur. (_V. connata_ of manuals) cupleaf s.
_serpyllifolia_ L. thymeleaf s.
_Veronicastrum virginicum_ (L.) Farw. culversphysic
_Viola_ L. violet
_eriocarpa_ Schw. woolpod v.
_kitaibeliana_ R. & S.
var. _rafinesquii_ (Greene) Fern.
(_V. rafinesquii_ Greene) johnnyjumpup
_missouriensis_ Greene Missouri v.
_nuttallii_ Pursh nuttall v.
_papilionacea_ Pursh butterfly v.
_pedata_ L. birdsfoot v.
_pedatifida_ G. Don prairie v.
_sororia_ Willd. sister v.
_Xanthium strumarium_ L. (including
_X. chinense_ Mill., _X. globosum_
Shull, _X. italicum_ Moretti,
_X. pensylvanicum_ Wallr., and
_X. speciosum_ Kearney) cocklebur
_Ximenesia_ (see _Verbesina_)
_Zinnia grandiflora_ Nutt. Rocky Mountain zinnia
_Zizia aurea_ (L.) W. D. J. Koch golden zizia