Cusickiella quadricostata

Plants subscapose; puberulent, trichomes crisped, branched, mixed with setiform ones. Stems 0.2–0.6 dm, pubescent. Basal leaves thin; blade linear to oblong, 0.2–0.5 cm × 0.5–1(–1.5) mm, margins ciliate, (trichomes setiform, to 0.8 mm), apex acute, often apiculate, surfaces densely puberulent, trichomes minute, crisped, subdendritic, mixed with fewer setiform and simple ones; midvein obscure. Cauline leaves 1–5 (as bracts). Racemes 5–17-flowered, (bracteate basally). Fruiting pedicels 2–5 mm, glabrous or puberulent. Flowers: sepals 2.5–4 × 1–1.5 mm; petals pale yellow, spatulate or oblanceolate, 3–4.5 × 1.5–2 mm, attenuate to clawlike base to 1 mm; filaments 2–3 mm; anthers 0.4–0.5 mm; gynophore obsolete. Fruits ovoid, 4-angled, 3–5 × 2–3 mm; valves each with prominent midvein, keeled on back, puberulent; style 0.5–1 mm. Seeds brown, 1.8–2.5 × 1–1.5 mm.

Phenology: Flowering May–Jun.
Habitat: Rocky slopes and ridges, pinyon-juniper woods, loose granitic rocks, rocky crevices and flats, dwarf sagebrush slopes
Elevation: 2400-2800 m

Distribution

• Generated Map
• Legacy Map

Calif., Nev.

Discussion

Of conservation concern.

Cusickiella quadricostata is narrowly restricted in California to Mono County and in Nevada to Lyon and Mineral counties.

Selected References

None.

Lower Taxa

None.