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Wood Anemone, Nightcaps, Twoleaf Anemone - Anemone quinquefolia


Family: Ranunculaceae - Buttercup family Genus Common Name: Anemone Native Status: NativeDicot Perennial Herb
Anemone quinquefolia - Wood Anemone, Nightcaps, Twoleaf Anemone. Anemone quinquefolia is found in most of the eastern United States, ranging further west - to the Dakotas - in the northern part of the range, and even as far west as Alberta in Canada. There are two varieties recognized by Flora of North America - var. minima is found only in NC, TN, VA, and WV, and var. quinquefolia, the widely ranging variety. The lateral leaflets in var. minima are sometimes unlobed. However, since they are also sometimes lobed and you may need to get to measuring achene sizes to differentiate, itís probably not worth trying to determine the variety for most of us.

Found in:
AL, AR, CT, DC, DE, GA, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, MS, NC, ND, NH, NJ, NY, OH, PA, RI, SC, SD, TN, VA, VT, WI, WV

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Anemone quinquefolia

Distribution of Anemone quinquefolia in the United States and Canada:
USDA Plants Distribution Map temporarily unavailable.
Blue=Native; Grey=Introduced

Map from USDA Plants Database:
USDA, NRCS. 2017. The PLANTS Database (http://plants.usda.gov, 29 Apr 2017). National Plant Data Team, Greensboro, NC 27401-4901 USA.

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Site: Cosby Campground, GSMNP, Cocke County, TN Date: 2013-April-07Photographer: Gerald C. Williamson
Nikon D7000
The solitary flower of Wood Anemone usually has 4 to 6 (usually 5) white petal-like sepals, although they may rarely be pink or tinged with pink or blue. It will have 30 to 60 stamens. While the flower is similar to that of Rue Anemone (Thalictrum thalictroides), Wood Anemone doesnít have the distinctive urn-shaped green pistils, and the leaves are usually 3-part, with the lateral leaflets usually deeply lobed, giving the appearance of having 5 leaftlets. The terminal leaflet may also be lobed, but not so deeply as the lateral leaflets.
Anemone quinquefolia

Site: Cosby Campground, GSMNP, Cocke County, TN Date: 2013-April-07Photographer: Gerald C Williamson
Nikon D7000
Anemone quinquefolia grows from horizontal rhizomes, with vertical shoots between 2 and 12 inches tall. The solitary flower on the vertical shoot grows on a peduncle which may be somewhat hairy.
Click on the photo for a larger image
Anemone quinquefolia

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All content except USDA Plants Database map Copyright Gerald C. Williamson 2017
Photographs Copyright owned by the named photographer