Wislizenia refracta

Engelmann in F. A. Wislizenus
in F. A. Wislizenus, Mem. Tour N. Mexico, 99. 1848.
Weedy
Synonyms: Wislizenia costellata Rose ex Greene Wislizenia melilotoides Greene Wislizenia refracta var. melilotoides (Greene) I. M. Johnston Wislizenia scabrida
Treatment appears in FNA Volume 7. Treatment on page 214. Mentioned on page 213.

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

V7 296-distribution-map.gif

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.

Lower Taxa

None.

... more about "Wislizenia refracta"
Gordon C. Tucker +
Engelmann in F. A. Wislizenus +
Ariz. +, Calif. +, Nev. +, N.Mex. +, Tex. +, Utah +, Mexico (Chihuahua +  and Sonora). +
500-2400 m +
Dry sandy flats, desert scrub, roadsides +
Flowering spring–fall. +
in F. A. Wislizenus, Mem. Tour N. Mexico, +
Wislizenia costellata +, Wislizenia melilotoides +, Wislizenia refracta var. melilotoides +  and Wislizenia scabrida +
Wislizenia refracta +
Wislizenia +
species +