Oregon anemone
Anemone oregana
Summary 4
Anemone oregana is a species of flowering plant in the buttercup family known by the common names blue windflower, Oregon anemone, and western wood anemone. It is native to the forests of the west coast of the United States. This is a perennial herb growing from a thick rhizome to a maximum height of 25 to 30 centimeters. There is usually a single basal leaf made up of three large leaflets on a long petiole. There...
Description 5
Aerial shoots 5-30(-35) cm, from rhizomes, rhizomes horizontal. 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 1×-lobed; ultimate lobes 0.4-10 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 1×-lobed; ultimate lobes 0.5-10 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. Heads of achenes nearly spheric; pedicel (1.5-)2-5(-7) cm. 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.
National nature serve conservation status 6
United States
Rounded National Status Rank: NNR - UnrankedNature serve conservation status 7
Rounded Global Status Rank: G4 - Apparently Secure
Sources and Credits
- (c) dloarie, some rights reserved (CC BY), uploaded by dloarie, http://www.flickr.com/photos/57556735@N08/7065828219
- (c) J. Maughn, some rights reserved (CC BY-NC), uploaded by J. Maughn, http://www.flickr.com/photos/jmaughn/13210943685/
- (c) Mount Rainier National Park, some rights reserved (CC BY), http://www.flickr.com/photos/mountrainiernps/9054048536/
- Adapted by dlimandri from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Anemone_oregana
- (c) Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/5006404
- (c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/14739780
- (c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/15585893
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