Pincushion Cactus—Cactus Grahami.
Common Prickly Pear—Opuntia.
EVENING PRIMROSE FAMILY. Onagraceae.
A large family, widely distributed, most abundant in America; herbs, with no stipules; flowers usually perfect, their parts usually in fours; calyx-tube attached to the usually four-celled, inferior ovary and usually prolonged beyond it; stamens four or eight, inserted with the petals, on the throat of the calyx-tube, or on a disk; style single with a four-lobed or round-headed stigma; fruit usually a four-celled capsule, containing small seeds or a nut. The flowers are generally showy and many are cultivated.
Eulòbus Califórnicus
Yellow
Spring
Southwest
This is the only kind of Eulobus. It would be a pretty plant, if more flowers were out at one time and if they did not close so soon. The smooth, hollow, loosely-branching stem is from one to three feet tall, with a "bloom," the leaves are smooth, rather light dull-green, and the buds are erect. The flowers are about three-quarters of an inch across, with a very short calyx-tube, light-yellow petals, fading to reddish-pink, eight stamens, four of them smaller and shorter, and the light-green stigma with a round top. The slender pods are three inches long, smooth, cylindrical, and turning stiffly down, with many seeds. This grows in mountain canyons.
Eulobus Californicus.
There are a few kinds of Chamaenerion; perennials, often woody at base; leaves alternate; flowers in clusters, perfect, slightly irregular, white or purplish; petals four; stamens eight; style threadlike, with a four-cleft stigma; capsule long, four-sided, containing numerous seeds, tipped with a tuft of hairs. The calyx-tube is not prolonged beyond the ovary, which chiefly distinguishes this genus from Epilobium.