Anemone lyallii

Britton

Ann. New York Acad. Sci. 6: 227. 1891.

Common names: Little mountain anemone
Endemic
Synonyms: Anemone oligantha Eastwood Anemone quinquefolia var. lyallii (Britton) B.L. Robinson
Treatment appears in FNA Volume 3.

Aerial shoots 5-30 (-40) cm, from rhizomes, rhizomes horizontal. Basal leaves 0-1, ternate; petiole 5-8 cm; terminal leaflet sessile to petiolulate, ovate to oblanceolate, (1-) 1.5-3 (-4) × (0.4-) 0.7-1.5 (-2) cm, base narrowly cuneate, margins serrate to crenate on distal 1/2-2/3, apex acuminate to narrowly acute, rarely obtuse, surfaces glabrous, rarely puberulous; lateral leaflets unlobed or occasionally nearly lobed. Inflorescences 1-flowered; peduncle distally puberulous or nearly glabrous throughout; involucral-bracts 3, 1-tiered, ternate, ±similar to basal leaves, bases distinct; terminal leaflet sessile to petiolulate, ovate to oblanceolate, (1-) 1.5-3 (-4) × (0.4-) 0.7-1.5 (-2) cm, bases narrowly cuneate, margins serrate to crenate on distal 1/2-2/3, apex acuminate to narrowly acute, rarely obtuse, surfaces glabrous, rarely puberulous; lateral leaflets unlobed or occasionally nearly lobed. Flowers: sepals 5 (-7), white, pink, or sometimes blue-tinged, oblong, rarely narrowly ovate, 3.5-8 (-10) × 1.5-3 (-3.5) mm, glabrous; stamens 10-30 (-35). Heads of achenes nearly spheric; pedicel 1-3 (-4) cm in fruit. Achenes: body elliptic, flat, 3-4 × 1-1.5 mm, not winged, white-puberulous; beak subulate, sometimes slightly curved, ca. 0.5 mm, glabrous. 2n=16.


Phenology: Flowering spring–summer (Mar–Jul).
Habitat: Shaded woods, subalpine ridges
Elevation: 200-1900 m

Distribution

V3 1033-distribution-map.gif

B.C., Calif., Oreg., Wash.

Discussion

Anemone lyallii may occasionally intergrade with A. oregana west of the Cascades in northern Oregon (C. L. Hitchcock et al. 1955-1969, vol. 2). The area of probable intergradation should be extended to the southern limits of both species where they are sympatric.

Selected References

None.

Lower Taxa

None.

"broadened" is not a number.

... more about "Anemone lyallii"
Bryan E. Dutton +, Carl S. Keener +  and Bruce A. Ford +
Britton +
distinct +
cuneate +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
rudimentary +
subulate +
0.5 cm5 mm <br />0.005 m <br /> (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
white-puberulous +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
globose;cylindric +
Little mountain anemone +
2-9-flowered +
B.C. +, Calif. +, Oreg. +  and Wash. +
200-1900 m +
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 +
Shaded woods, subalpine ridges +
spheric +
axillary +  and terminal +
petiolate +, compound +  and simple +
whorled +, opposite +  and alternate +
palmate +  and pinnate +
serrate;crenate +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
glabrous +  and puberulous +
distinct +
conspicuous +
reduced +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering spring–summer (Mar–Jul). +
Ann. New York Acad. Sci. +
not arillate +  and stalked +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
blue-tinged;pink;white +
not persistent +
distinct +
ovate +  and oblong +
0.35 cm3.5 mm <br />0.0035 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
persistent +
puberulous;glabrous;puberulous;glabrous +
Anemone oligantha +  and Anemone quinquefolia var. lyallii +
Anemone lyallii +
species +
sessile;petiolulate +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
ovate;oblanceolate +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
2-9-flowered +
herbaceous +  and woody +