Cusickiella douglasii

(A. Gray) Rollins

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

IllustratedEndemic
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

Distribution

V7 606-distribution-map.gif

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

Discussion

Selected References

None.

Lower Taxa

None.

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... more about "Cusickiella douglasii"
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Ihsan A. Al-Shehbaz +
(A. Gray) Rollins +
Draba douglasii +
appendaged +  and unappendaged +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not +  and auriculate +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
dissected +, repand +, sinuate +, crenate +  and dentate +
oblanceolate;oblong +
much smaller +  and reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
sessile +, subsessile +  and petiolate +
well-developed +
indistinct +
not +  and differentiated +
emarginate +  and entire +
incumbent +  and accumbent +
obliquely +  and incumbent +
Calif. +, Idaho +, Nev. +, Oreg. +, Utah +  and Wash. +
1500-2500 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
actinomorphic +
stipitate +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
terete +, ovoid +  and ellipsoid +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Scree, serpentine ridges, red barren hillsides, rocky ridges, loose volcanic hillsides +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
pinnatifid +
obscure +  and prominent +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
3.5mm;6mm +
rudimentary +
attenuate +  and clawlike +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering Apr–Aug. +
trinucleate +  and 3(-11)-colpate +
J. Jap. Bot. +
2-20-flowered +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
puberulent +  and glabrous +
slender +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
mucilaginous +
not +  and mucilaginous +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
ovoid +  and oblong +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
persistent +  and caducous +
distinct +
spreading +, ascending +  and erect +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
Illustrated +  and Endemic +
tetradynamous +
procumbent +  and decumbent +
puberulent +  and glabrous +
subsessile +, sessile +  and petiolate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
persistent +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
puberulent +  and glabrous +
Braya oregonensis +, Cusickia douglasii +, Draba crockeri +  and Draba douglasii var. crockeri +
Cusickiella douglasii +
Cusickiella +
species +
subdendritic +, stalked +, simple +  and branched +
crisped +  and forked +
coiled +, 1-7-veined +  and veined +
puberulent +  and glabrous +
rounded +
anastomosing +
subscapose +  and scapose +
pubescent +  and glabrous +
perennial +, biennial +  and annual +
aquatics +  and terrestrial +
puberulent +  and glabrous +