Plant: annual herb; 4-60 cm tall; Decumbent, ascending, or erect, simple or freely branched. Leaves: narrowly to broadly elliptic, lanceolate, oblong, or ovate, (0.8-)2-9 cm long, 0.4-3 cm wide, longer than wide; apex attenuate to long attenuate or obtuse to rounded; base cuneate. INFLORESCENCE: inglorescences of few flowered axillary cymes, the lowermost flowers usually perfect, those above pistillate. Flowers: subtended by bracts ca. 1.8-5 mm long; tepals ca. 1.5-2 mm long, the bracts exceeding the tepals. Fruit: achenes, symmetrical, 0.9-1.2 mm long, 0.6-0.9 mm broad, shining, hard and bony, ovoid, stipitate, enclosed by the perianth. Misc: Dry ledges, talus slopes, waste and shaded places, preferring soils with a neutral or basic reaction; to 2200 m (7200 ft); spring-late fall.

Santa Catalina Mountains
Sabino Canyon Recreation Area.
Location: In picnic area behind Tram Stop #1.
2/9/16

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