Plant: annual, stem ascending to erect, 3.5-21 cm. Leaves: generally alternate, generally 0.5-4 cm, ± linear, strigose to sharp-bristled. INFLORESCENCE: cymes; pedicels in fruit 2-3 mm, generally recurved. Flowers: sepals generally < fruit, upper 2 in fruit generally > others; corolla 0.8-3 mm, white; style attached to receptacle, unbranched, generally persistent, stigma 1, head-like. Fruit: nutlets strongly recurved to coiled, 2.5-4 mm, linear; margin teeth distinct ± to base, linear (or width at base < length). Misc: Shelter of rocks, bases of shrubs, sometimes roadsides, creosote-bush scrub, Joshua-tree woodland; 10-1600 m.; Mar-May.

Santa Catalina Mountains
Sabino Canyon Recreation Area
Location: Near creek below dam.
1/31/16

Notes: Sabino Canyon at edge of Bear Canyon Road 3/8/16
Sabino Canyon at edge of dirt road below dam 2/9/17

See SEINet Pictures and Description