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Piper's Anemone, Windflower - Anemone piperi


Family: Ranunculaceae - Buttercup family Genus Common Name: Anemone Native Status: NativePerennial Herb
Anemone piperi - Piper's Anemone, Windflower. According to the USDA Plants Database, there are 19 species in the Anemone genus that are native to the United States. Several of these are found in a relatively small region of the continent, and Piper's Anemone - Anemone piperi - is one of those, being found in only 5 northwestern states, and in British Columbia. It grows in shaded, moist forests to altitudes of up to nearly 10,000'. This one was photographed at an elevation of a little over 5,000'.

Found in:
ID, MT, OR, UT, WA

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Anemone piperi

Distribution of Anemone piperi 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, 19 Oct 2017). National Plant Data Team, Greensboro, NC 27401-4901 USA.

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Site: Ponderosa State Park, Valley County, ID Date: 2012-May-31Photographer: Gerald C. Williamson
Nikon D7000
Tamron SP 90MM f/2.8 AF Macro
Piper's Anemone has 5 to 7 white (occasionally pinkish) petals surrounding 35 - 55 or more stamens.
Anemone piperi

Site: Ponderosa State Park, Valley County, ID Date: 2012-May-31Photographer: Gerald C Williamson
Nikon D7000
Tamron SP 90MM f/2.8 AF Macro
When I saw this plant, I assumed this was a plant stem with a single blossom and a whorl of trifoliate leaves. Based on my interpretation of the online Flora of North American description of the plant, this is actually the peduncle, and what appear to be the trifoliate leaves are really ternate involucre bracts that appear almost identical to the triofoliate basal leaves. Go figure.
Click on the photo for a larger image
Anemone piperi

Site: Ponderosa State Park, Valley County, ID Date: 2012-May-31Photographer: Gerald C Williamson
Nikon D7000
Tamron SP 90MM f/2.8 AF Macro
Piper's Anemone grows to a little over a foot high. The inflorescence has a single blossom on a peduncle arising from the rhizome. There are clearly several flower stems supporting this cluster of blossoms.
Click on the photo for a larger image
Anemone piperi

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