ROCKROSE FAMILY _(Cistaceae)_

Long-branched Frost-weed; Frost-flower; Frost-wort; Canadian

Rockrose

_Helianthemum canadense_

_Flowers_--Solitary, or rarely 2; about 1 in. across, 5-parted, with

showy yellow petals; the 5 unequal sepals hairy. Also abundant small

flowers lacking petals, produced from the axils later. _Stem:_ Erect, 3

in. to 2 ft. high; at first simple, later with elongated branches.

_Leaves:_ Alternate, oblong, almost seated on stem.

_Preferred Habitat_--Dry fields, sandy or rocky soil.

_Flowering Season_--Petal-bearing flowers, May-July.

_Distribution_--New England to the Carolinas, westward to Wisconsin

and Kentucky.

When the stubble in the dry fields is white some cold November morning,

comparatively few notice the ice crystals, like specks of glistening

quartz, at the base of the stems of this plant. The similar Hoary

Frost-weed (_H. majus_), whose showy flowers appear in clusters at the

hoary stem’s summit in June and July, also bears them. Often this ice

formation assumes exquisite feathery, whimsical forms, bursting the

bark asunder where an astonishing quantity of sap gushes forth and

freezes. Indeed, so much sap sometimes goes to the making of this

crystal flower, that it would seem as if an extra reservoir in the soil

must pump some up to supply it with its large fantastic corolla.

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