Cusickiella douglasii

(A. Gray) Rollins

J. Jap. Bot. 63: 69. 1988.

Basionym: Draba douglasii A. Gray Proc. Amer. Acad. Arts 7: 328. 1867
Synonyms: Braya oregonensis A. Gray Cusickia douglasii (A. Gray) O. E. Schulz Draba crockeri Lemmon Draba douglasii var. crockeri (Lemmon) C. L. Hitchcock
Treatment appears in FNA Volume 7. Treatment on page 413.

Plants scapose; glabrous or puberulent, trichomes crisped, simple or branched. Stems 0.1–0.5 dm, glabrous or puberulent. Basal leaves thick, leathery; blade oblanceolate to oblong, (0.3–)0.5–1.2(–1.4) cm × (0.5–)1–2(–2.5) mm, margins ciliate, (trichomes simple and forked, to 0.3 mm), apex acute, surfaces glabrous or sparsely puberulent, trichomes simple and stalked, forked or subdendritic, crisped (not setiform); midvein prominent. Cauline leaves absent. Racemes 2–20-flowered. Fruiting pedicels 2–6(–8) mm, glabrous or puberulent. Flowers: sepals 2.5–4 × 1–1.5 mm; petals white, spatulate, 3.5–6 × 1.5–2 mm, attenuate to clawlike base to 1 mm; filaments 2–3 mm; anthers 0.5–0.6 mm; gynophore 0–0.5 mm. Fruits ovoid to ellipsoid, terete, (2–)3–6(–7) × 2.5–3 mm; valves each with obscure midvein, rounded on back, glabrous or puberulent; style (0.5–)1–2(–2.5) mm. Seeds brown, 2–3 × 1.5–2 mm.

Phenology: Flowering Apr–Aug.
Habitat: Scree, serpentine ridges, red barren hillsides, rocky ridges, loose volcanic hillsides
Elevation: 1500-2500 m


V7 606-distribution-map.gif

Calif., Idaho, Nev., Oreg., Utah, Wash.


Selected References


Lower Taxa

... more about "Cusickiella douglasii"
Ihsan A. Al-Shehbaz +
(A. Gray) Rollins +
Draba douglasii +
Calif. +, Idaho +, Nev. +, Oreg. +, Utah +  and Wash. +
1500-2500 m +
Scree, serpentine ridges, red barren hillsides, rocky ridges, loose volcanic hillsides +
Flowering Apr–Aug. +
J. Jap. Bot. +
Illustrated +  and Endemic +
Braya oregonensis +, Cusickia douglasii +, Draba crockeri +  and Draba douglasii var. crockeri +
Cusickiella douglasii +
Cusickiella +
species +