Subshrubs or shrubs, 50–200 cm. Stems glabrous or glabrate. Leaves: petiole 0.1–2.1 cm; leaflets 3 proximally, 1 distally, gray-green to green, blade ovate to obovate, 0.6–4 × 0.4–2 cm, 3–8(–12) times as long as wide, margins entire, apex emarginate to rounded. Racemes 1–1.5 cm (2–3 cm in fruit). Flowers: sepals green, ovate, 0.5–1.7 × 0.4–1.1 mm, less than 1.75 times as long as wide, margins entire, glabrous; petals yellow, oblong, 2.5–6.3 × 1–2.5 mm; stamens yellow, 4–10 mm; anthers (1–)1.5–2.5 mm; gynophore 5 mm in fruit, usually longer than pedicel. Schizocarps 1–5.6 × 1 mm. Seeds 0.5 × 0.3 mm. 2n = 40.

Phenology: Flowering and fruiting year-round.
Habitat: Sandy washes, coastal dunes, saline flats, desert scrub
Elevation: 100-500 m

Distribution

• Generated Map
• Legacy Map

Ariz., Calif., Mexico (Baja California, Baja California Sur, Sonora).

Discussion

Essentially a Mexican species, Wislizenia palmeri occurs in the flora area in Riverside and San Diego counties in California, and in Organ Pipe National Monument in southern Arizona.

Selected References

None.

Lower Taxa

None.