Also called “tackstem” because of the numerous dark-colored, tack-shaped
glands protruding from the stem, this white-flowered, branching annual
blossoms from March to May at elevations of 500 to 4,000 feet. It is a
conspicuous item of the spring flower display from west Texas to
southern California and northern Mexico. A similar species with yellow
flowers, _Calycoseris parryi_, common at elevations around 3,000 feet,
blooms in March and April. It is found in southwestern Utah, Arizona,
and southern California.
_Calycoseris wrightii_ Sunflower Family
[Illustration: WHITE CUPFRUIT]