[Illustration: White Bladder-pod--Lesquerella purpurea.]
The flowers of this family are much like the Mustards, but the stamens are all of equal length and are often more than six; the leaves are alternate and consist of three or several leaflets, with stalks, and the plant usually tastes bitter and disagreeable instead of pungent. There is no partition in the pods, which are on long, threadlike stalks; the ovary is superior and the seeds are kidney-shaped. Many flowers have only a rudimentary pistil and never produce fruit. The Caper, of which we eat the pickled flower-buds for a relish, is a shrub which grows in the Levant. The family is quite large and flourishes in warm regions.
There are several kinds of Cleomella, resembling Cleome, except that the pods are different.
[Sidenote: =Cleomella= _Cleomélla lóngipes_ =Yellow Spring Nev., Cal., Oreg.=]
This is a handsome, rather odd-looking plant, with a stout, smooth, yellowish or purplish stem, sometimes branching and over a foot tall. The leaves are bright light-green, smooth, toothless and slightly thickish, and the three leaflets are sometimes each tipped with a hair, and have a tuft of small hairs at the base of the leaf-stalk, in place of a stipule. The flowers are about half an inch across, and are a beautiful warm shade of golden-yellow, the long stamens being of the same color and giving a very pretty feathery appearance to the large cluster. The pods are queer-looking little things and stick straight out from the stem. This has a slightly unpleasant smell, but looks very gay and pretty in the fields and along the edges of the mesas around Reno.
There are many kinds of Cleome; ours are branching herbs, with palmately-divided leaves; the flowers with four sepals, four petals, and six stamens. The ovary has a stalk with a gland at its base and becomes a long pod, with a long stalk and many seeds.
[Sidenote: =Bee-plant= _Cleòme serrulàta_ =Pinkish-lilac, white Summer Southwest, etc.=]
In Arizona this exceedingly handsome plant often covers the dry beds of rivers with acres of beautiful color. The smooth, branching stem is sometimes as much as eight feet high. The upper leaves are long and narrow and the lower are larger and usually have three leaflets, but all are bluish-green and peculiarly soft and smooth to the touch. The buds are purple and the delicate flowers, with threadlike flower-stalks, grow in a handsome, feathery cluster, sometimes a foot long, with numerous bracts. They have four, pinkish-lilac or white petals and six exceedingly long, threadlike stamens with minute, curling, green anthers. The lilac pistil is also very long and before the flower drops off begins to develop into a small, flat, green pod. These gradually lengthen, until the stem is ornamented with many hooklike pods, with slender stalks, hanging all along it. Many of the flowers do not produce fruit. The foliage when it is crushed gives off a rank, unpleasant smell, which is responsible for the local name of Skunk-weed. This is widely distributed and is found in the central and northern part of the United States, as well as in the Southwest.