Anemone oregana |
Anemone drummondii |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
blue windflower, bog anemone, Oregon anemone, Oregon windflower, western wood anemone, western wood anenome |
alpine anemone, Drummond's anemone, Drummond's windflower |
|||||||||
Aerial shoots | 5-30(-35) cm, from rhizomes, rhizomes horizontal. |
(7-)10-25(-30) cm, from caudices, caudices ascending to primarily vertical. |
||||||||
Basal leaves | 0-1, ternate; petiole 4-20 cm; terminal leaflet sessile to petiolulate, oblanceolate to rhombic, oblong, or ovate, 1-5(-6) × 0.7-2.5(-3.5) cm, base narrowly cuneate, margins sharply serrate on distal 1/2(-2/3), apex acuminate to acute, surfaces strigose to nearly glabrous; lateral leaflets unlobed or 1x-lobed; ultimate lobes 0.4-10 mm wide. |
5-15, 2-ternate, occasionally irregularly so; petiole 2-10 cm; terminal leaflet sessile or basally attenuate and appearing petiolulate, obovate to obtriangular, 0.5-3 × 0.5-2 cm, base narrowly cuneate to cuneate, margins incised to dissected on distal 1/3-1/2, apex broadly acute to obtuse, surfaces villous; lateral leaflets 2x-parted, division frequently irregular; ultimate segments 1-2.6 mm wide. |
||||||||
Inflorescences | 1-flowered; peduncle proximally glabrous, distally villous to pilose; involucral bracts 3, 1-tiered, ternate, ±similar to basal leaves, bases distinct; terminal leaflet sessile to petiolulate, oblanceolate to rhombic, oblong, or ovate, 1-8 × 0.8-3(-3.5) cm, bases narrowly cuneate to cuneate, margins crenate to serrate on distal 1/2(-2/3), apex acuminate to acute, surfaces abaxially glabrous or strigose, adaxially nearly glabrous to strigose; lateral leaflets unlobed or 1x-lobed; ultimate lobes 0.5-10 mm wide. |
1(-2)-flowered; peduncle villous; involucral bracts 3(-4), 1-tiered, ±similar to basal leaves, highly reduced, 2-ternate or irregularly so, bases distinct; terminal leaflet sessile or basally attenuate and appearing petiolulate, obovate to pinnatifid, 1-3.5 × 0.5-2 cm, bases narrowly cuneate to cuneate, margins incised to dissected on distal 1/3-1/2, apex broadly acute to obtuse, surfaces villous; lateral leaflets 2x-parted, division frequently irregular; ultimate segments 1-2.5 mm wide. |
||||||||
Flowers | sepals 5-7(-8), blue to purple, reddish, or purple to pink (rarely nearly white or abaxially reddish, violet, or marginally purple, adaxially white), ovate, oblong, or elliptic, 10-20 × 5-8(-10) mm, glabrous; stamens 30-75. |
sepals (5-)6-9, white, or abaxially white, tinged blue, and adaxially white, ovate, rarely oblong or narrowly obovate, 8-20 × 6-10 mm, abaxially hairy, rarely glabrous, adaxially glabrous; stamens 80-100, whitish; styles white. |
||||||||
Achenes | body oblong to ellipsoid, 4-5 × 1.5-2 mm, not winged, puberulous to pilose, rarely glabrous; beak ±straight, (0.5-)1-1.5 mm, glabrous. |
body ovoid, 2-4 × 1-1.5 mm, not winged, woolly; beak straight, 2-4(-6) mm, glabrous. |
||||||||
Heads of achenes | nearly spheric; pedicel (1.5-)2-5(-7) cm. |
spheric, rarely cylindric; pedicel (2-)3-10 cm. |
||||||||
Anemone oregana |
Anemone drummondii |
|||||||||
Distribution |
CA; OR; WA
|
AK; CA; ID; MT; OR; WA; WY; AB; BC; NT; YT; Asia
|
||||||||
Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (2 in the flora). Anemone drummondii is an extremely variable species whose circumscription is controversial. Some plants appear intermediate between this species and A. multifida; cytologically the two are quite distinct (G.Boraiah and M.Heimburger 1964; C. L. Hitchcock et al. 1955-1969, vol.2). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||
Key |
|
|
||||||||
Source | FNA vol. 3. | FNA vol. 3. | ||||||||
Parent taxa | Ranunculaceae > Anemone | Ranunculaceae > Anemone | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Name authority | A. Gray: Proc. Amer. Acad. Arts 22: 308. (1887) | S. Watson: Bot. California 2: 424. (1880) | ||||||||
Web links |
|