There are several kinds of Lavauxia; low, usually stemless; leaves mostly from the root; calyx-tube slender; petals four; stamens eight, the alternate ones longer; ovary short, stigma four-cleft; capsule stout, four-angled or winged.
Sun-cups
Lavaùxia primivèris (Oenothera)
Yellow
Spring
Arizona
An attractive little plant, in the desert, with no stem, the flowers with long, slender calyx-tubes, resembling stems, springing from a clump of rather downy root-leaves. The buds are hairy and the flowers are about an inch across, light yellow, with pale yellow stamens and stigma. This plant varies a good deal in size, bearing one or several flowers, and the margins of the leaves almost toothless or irregularly slashed. It superficially resembles Taráxia ovàta, the Sun-cups so common on the southwestern coast, for the flowers have the same little fresh, sunny faces, but the latter has a round-topped stigma.
Evening Primrose—Onagra Hookeri.
Sun-cups—Lavauxia primiveris.
PARSLEY FAMILY. Umbelliferae.
A large family, widely distributed, not abundant in the tropics; usually strong-smelling herbs, remarkable for their aromatic oil, mostly with hollow, grooved stems; leaves alternate, compound, generally deeply cut, leaf-stalks often broadened at base; flowers very small, usually in broad, flat-topped clusters, generally with bracts; calyx usually a five-toothed rim around the top of the ovary; petals five, small, usually with tips curled in, inserted on a disk, which crowns the ovary and surrounds the base of the styles; stamens five, with threadlike filaments and swinging anthers, also on the disk; ovary two-celled, inferior, with two threadlike styles; fruit two, dry, seedlike bodies, when ripe separating from each other, and usually suspended from the summit of a slender axis, each body marked with ribs, usually with oil-tubes between the ribs. The examination of these oil-tubes in mature fruits, with a microscope, is necessary to determine most of the genera and species, so description of genera is omitted here, and botanists have added to the difficulties of the amateur by giving almost every genus more than one name. The flowers are much alike, yet the leaves often differ very much in the same genus. Many kinds are poisonous, although others, such as Parsley, Carrot, and Parsnip, are valuable food plants.
Peucédanum Euryptèra
Yellow
Spring
California
A fine robust plant, a foot or more tall, with stout, purplish stems and smooth, crisp leaves, the lower ones with three leaflets, the upper with five, and the teeth tipped with bristles. The flowers are greenish-yellow and the main cluster measures four or five inches across, with no bracts at base, but the small clusters have bracts. The flowers are ugly, but the foliage is handsome and the seed vessels richly tinted with wine-color, making the plant decorative and conspicuous on the sea cliffs of southern California.
Turkey Peas
Orogènia linearifòlia
White
Spring
Northwest and Utah