This has small flowers, but often grows in such quantities on the flats near Salt Lake that it tints the fields with purple. The purplish stem is from twelve to fifteen inches tall and the leaves are light bluish-green and very smooth, the root-leaves with long leaf-stalks, and the stem-leaves arrow-shaped and clasping at base. The flowers are about half an inch across, with a purplish-tinged calyx and pale pinkish-lilac petals, and form flat-topped clusters. The pods are spreading and rather knobby. This usually grows on dry hills, reaching an altitude of over nine thousand feet, as far east as Wyoming.
There are many kinds of Arabis, widely distributed, with small, white or purplish flowers.
Fendler's Arabis
Árabis Féndleri
Magenta
Spring
Arizona
This is a rather pretty plant, a foot or more tall, with more or less hairy stems and leaves and pretty clusters of magenta flowers, each about a quarter of an inch across. It grows on the rim of the Grand Canyon.
There are many kinds of Erysimum, most abundant in Europe and Asia. They are usually biennial or perennial, more or less downy; mostly with yellow flowers; the pods long, narrow and squarish or flattish, rarely round, with numerous seeds, in one row. In Europe these plants often grow in the crannies of old walls, hence the common name.
Western Wallflower
Erýsimum ásperum
Orange, lemon-yellow
Spring, summer
West, etc.
The vivid glowing orange of these handsome flowers is exceedingly effective among the dark tree-trunks of the mountain forests where they often grow. They are widely distributed as far east as Ohio. The stout, purplish stems are from one to two feet tall and the long, narrow leaves, often toothed, are apt to be purplish on the under side, and both stem and leaves are rather rough. The fragrant flowers, each about three-quarters of an inch across, form a handsome cluster, about three inches across. The calyx is yellow, the pistil green, and the anthers brown. The conspicuous, four-sided pods are spreading or erect, from one to five inches long, with a stout beak. In the high mountains the orange-color gives way to the variety perénne, with lemon-colored flowers, perhaps commoner than the orange, not so tall, and wonderfully handsome in the Wasatch Mountains, around Mt. Rainier and similar places, and widely distributed. The Cream-colored Wallflower, E. capitàtum, blooms early, growing near the coast; the flowers large, handsome, but not sweet-scented.
Western Wall-flower—Erysimum asperum.
