Anemone drummondii

S. Watson

Bot. California 2: 424. 1880.

Common names: Drummond's anemone
Treatment appears in FNA Volume 3.

Aerial shoots (7-) 10-25 (-30) cm, from caudices, caudices ascending to primarily vertical. Basal leaves 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 2×-parted, division frequently irregular; ultimate segments 1-2.6 mm wide. Inflorescences 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 2×-parted, division frequently irregular; ultimate segments 1-2.5 mm wide. Flowers: 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. Heads of achenes spheric, rarely cylindric; pedicel (2-) 3-10 cm. Achenes: body ovoid, 2-4 × 1-1.5 mm, not winged, woolly; beak straight, 2-4 (-6) mm, glabrous.

Distribution

Alta., B.C., N.W.T., Yukon, Alaska, Calif., Idaho, Mont., Oreg., Wash., Wyo., Asia

Discussion

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).

Selected References

None.

Key

1 Ultimate segments of lateral leaflets 1–1.5(–2) mm wide, leaflets villous. Anemone drummondii var. drummondii
1 Ultimate segments of lateral leaflets 1.5–2.6 mm wide, leaflets nearly glabrous or pilose. Anemone drummondii var. lithophila

"broadened" is not a number.

... more about "Anemone drummondii"
Bryan E. Dutton +, Carl S. Keener +  and Bruce A. Ford +
S. Watson +
petiolulate +
distinct +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
obovate +  and pinnatifid +
0.5cm;2cm +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
straight +
rudimentary +
plumose +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
globose;cylindric +
ascending;primarily vertical +
Drummond's anemone +
2-9-flowered +
Alta. +, B.C. +, N.W.T. +, Yukon +, Alaska +, Calif. +, Idaho +, Mont. +, Oreg. +, Wash. +, Wyo. +  and Asia +
sessile +  and pedicellate +
showy +  and inconspicuous +
0 cm0 mm <br />0 m <br /> (60 cm600 mm <br />0.6 m <br />) +
stalked +, sessile +  and aggregate +
ovoid;obovoid +
cylindric;spheric +
axillary +  and terminal +
irregularly +  and 2-ternate +
petiolate +, compound +  and simple +
whorled +, opposite +  and alternate +
palmate +  and pinnate +
incised;dissected +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
distinct +
conspicuous +
reduced +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Bot. California +
not arillate +  and stalked +
white;tinged blue;white;white;white;white +
not persistent +
distinct +
glabrous +  and hairy +
6 +  and 9 +
obovate +, oblong +  and ovate +
0.35 cm3.5 mm <br />0.0035 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
25 cm250 mm <br />0.25 m <br /> (30 cm300 mm <br />0.3 m <br />) +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
persistent +
villous;villous +
Anemonastrum +, Anemonidium +, Anemonoides +, Hepatica +, Jurtsevia +  and Pulsatilla +
Anemone drummondii +
species +
narrowly cuneate;cuneate +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
2-9-flowered +
herbaceous +  and woody +