DESERT-MALLOW
[43.] Five-stamen tamarisk
Sometimes confused with tamarack because of the similarity of names, five-stamen tamarisk, locally called “salt-cedar,” is one of several small tree species from southeastern Europe and western Asia which have become naturalized in North America. “Salt-cedar” often forms dense thickets on alkaline soils along stream and reservoir banks at elevations below 5,000 feet. Flowers, which vary in hue from deep pink to white, cover the trees with graceful plumes of color from March to August. Although valuable in retarding soil erosion, tamarisk requires large quantities of water, an especially undesirable characteristic in the arid Southwest.
Tamarix pentandra Tamarix Family
FIVE-STAMEN TAMARISK
[44.] Yellow mentzelia
Many species of mentzelia, all herbs, occur in the West. Barbed hairs cover leaves and stems, causing the plant to cling to what it touches, hence a common name “stick-leaf.” Flowers grow at ends of branches, and some species open fully only in sunlight. A close relative, Mentzelia involucrata, “sand blazing-star,” is an annual, 4 to 16 inches high, blooming February through April, found in sandy washes below 3,000 feet in southwestern Arizona, southeastern California, and northern Sonora. Pumila grows in dry stream beds and on roadsides from 100 to 8,000 feet elevation, flowering February to October. It ranges from Wyoming and Utah to southeastern California and Northern Mexico.
Mentzelia pumila Loasa Family