The peculiar orange-yellow of these handsome flowers at once attracts our attention, for their tint is quite different from the greenish-yellow, which is so much more common. They grow in the desert, forming big clumps, two feet high and two or three feet across, but have almost no foliage. The numerous, smooth stems are very pale in color, often bluish or gray, with a few dark-green leaves, with six, very small, stiff leaflets, and bearing clusters of numerous, sweet-smelling flowers, almost regular and about three-quarters of an inch across, with a downy calyx and the small, fiat pod also downy.

Desert Senna. Cassia armata.

Desert Senna. Cassia armata.