Wislizenia refracta
in F. A. Wislizenus, Mem. Tour N. Mexico, 99. 1848.
Annuals, 40–200 cm. Stems glabrous or glabrate (sometimes smooth when dry). Leaves: petiole 0.2–3.1 cm; leaflets 3, green, blade ovate or obovate, (0.4–)1–4.9 × 0.4–2 cm, 1.5–4(–5.5) times as long as wide, margins entire, apex acute to rounded. Racemes 1–1.5 cm (2–3 cm in fruit). Flowers: sepals green, lanceolate, 0.4–1.7 × 0.2–0.7 mm, more than 1.75 times as long as wide, margins entire, glabrous; petals yellow, oblong, 1.4–4.6 × 0.5–1.8 mm; stamens yellow, 2–6 mm; anthers 0.5–1.7 mm; gynophore (reflexed in fruit), 2–12 mm in fruit, usually shorter than pedicel. Schizocarps 1.2–3.3 × 1 mm. Seeds 0.5 × 0.3 mm. 2n = 40.
Phenology: Flowering spring–fall.
Habitat: Dry sandy flats, desert scrub, roadsides
Elevation: 500-2400 m
Distribution
Ariz., Calif., Nev., N.Mex., Tex., Utah, Mexico (Chihuahua, Sonora).
Discussion
Wislizenia refracta is known from trans-Pecos Texas, and from the Mojave Desert (San Bernardino County and Little San Bernardino Mountains in Riverside County) in California.
Selected References
None.