Common names:
Western bristly scaleseed, sideflower scaleseed
Scientific name:
Spermolepis lateriflora
Range:
Southern Arizona and southwest New Mexico, plus small areas of Texas and California
Habitat:
Riparian places, desert grassland, floodplains, oak woodland, from 1,600 to 6,500 feet
Leaves:
Ternately divided into narrow, linear segments, at most 0.5 inches long. On stalks of around 1 inch
Leaves of spermolepis lateriflora are finely divided into short, linear, blunt-pointed segments, held at a variety of angles, not all in one plane. Leaf segments are narrow, almost cylindrical. Leaves are about 2 inches long overall, and tend to be upwards-pointing.
Flowers are produced in small clusters, from the leaf nodes; they lack bracts, and often are stemless, though lower umbels may have short peduncles. Rays, typically around five, are topped by tiny, white, five-lobed flowers, with leaflet-like bractlets. The green, egg-shaped fruits are densely covered by hooked white bristles.