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northern anemone, northern windflower, small-flower anemone

pasqueflower, prairie pasqueflower, prairie smoke, prairie-crocus

Aerial shoots

5-30(-35) cm, from short caudices on rhizomes, rhizomes primarily horizontal.

Basal leaves

1-5(-7), ternate;

petiole 1-10 cm;

terminal leaflet sessile, obtriangular, (0.5-)0.7-1.8(-2.2) × 0.5-1.3 cm, base cuneate, margins crenate to broadly serrate on distal 1/3, apex obtuse to truncate, surfaces villous to nearly glabrous;

lateral leaflets usually 1x-lobed or -parted; ultimate lobes 4-15 mm wide.

Inflorescences

1-flowered;

peduncle villous;

involucral bracts 2-3, 1-tiered, simple, ± similar to terminal leaflets of basal leaves, obtriangular, 3-cleft, 0.5-2.5 cm, bases distinct, cuneate, margins crenate to broadly serrate, surfaces villous to nearly glabrous;

segments 3, oblanceolate to obovate;

lateral segments unlobed, 2-8 mm wide.

Flowers

sepals 4-7, white or tinged blue or abaxially white, proximally blue, and adaxially white, broadly elliptic to ovate, (7-)8-20 × 4-9 mm, abaxially hairy, adaxially glabrous;

stamens 70-80.

Achenes

body obovoid, 2-2.5 × ca. 1 mm, not winged, densely woolly;

beak straight, 1-2.5 mm, glabrous.

Heads of achenes

spheric;

pedicel 4-18 cm.

2n

=16.

Anemone parviflora

Anemone patens

Phenology Flowering spring–summer (May–Aug).
Habitat Streamsides, meadows, rocky slopes
Elevation 0-3800m (0-12500ft)
Distribution
from FNA
AK; CO; ID; MT; OR; UT; WA; WY; AB; BC; MB; NB; NF; NT; ON; QC; SK; YT; Asia
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; CO; IA; ID; IL; MN; MT; ND; NE; NM; SD; UT; WI; WY; AB; BC; MB; NT; ON; SK; YT; Eurasia
[WildflowerSearch map]
Discussion

Varieties ca. 4 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 3. FNA vol. 3.
Parent taxa Ranunculaceae > Anemone Ranunculaceae > Anemone
Sibling taxa
A. acutiloba, A. americana, A. berlandieri, A. canadensis, A. caroliniana, A. cylindrica, A. deltoidea, A. drummondii, A. edwardsiana, A. grayi, A. lancifolia, A. lyallii, A. multiceps, A. multifida, A. narcissiflora, A. occidentalis, A. okennonii, A. oregana, A. patens, A. piperi, A. quinquefolia, A. richardsonii, A. tuberosa, A. virginiana
A. acutiloba, A. americana, A. berlandieri, A. canadensis, A. caroliniana, A. cylindrica, A. deltoidea, A. drummondii, A. edwardsiana, A. grayi, A. lancifolia, A. lyallii, A. multiceps, A. multifida, A. narcissiflora, A. occidentalis, A. okennonii, A. oregana, A. parviflora, A. piperi, A. quinquefolia, A. richardsonii, A. tuberosa, A. virginiana
Subordinate taxa
A. patens var. multifida
Synonyms A. borealis, A. parviflora var. grandiflora
Name authority Michaux: Fl. Bor.-Amer. 1: 319. (1803) Linnaeus: Sp. Pl. 1: 538. (1753)
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