Bistorta bistortoides

(American Bistort)

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Bistorta bistortoides, Loveland Pass, Clear Creek Co. 1896

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Bistorta bistortoides, Crystal Lakes, Summit Co. 1210

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Bistorta bistortoides, Blue Lakes, Summit Co. 4635

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Bistorta bistortoides, Miner's Creek, Summit Co. 5981

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Bistorta bistortoides, Crystal Lakes, Summit Co. 1208

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Bistorta bistortoides, Lake Emma, Park Co. 1383

Scientific Name Bistorta bistortoides (Polygonum bistortoides) USDA PLANTS Symbol POBI6
Common Name American Bistort ITIS Taxonomic Serial No. 509552
Family Polygonaceae (Buckwheat) SEINet
Reference
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Description Life zones and habitat: Foothills to alpine (7000 to 14000 ft); meadows, streamsides, wetlands, tundra.
Plant: Erect perennial 8 to 30 inches tall, 1 to 3 stems.
Leaves: Mostly basal, dark green, long, narrowly lanceolate or oblong-lanceolate with pronounced center vein, often wavy edges; a few similar but shorter stem leaves widely spaced; surfaces mostly smooth upper or hairy beneath.
Inflorescence: Dense cluster of many small white or pinkish flowers 3/16-inch long with 5 tepals, in a short, compact raceme; bulblets absent.
Bloom Period: June to September.
Reference: "Flora of Colorado" by Jennifer Ackerfield, "A Field Guide to Wildflowers of the Rocky Mountains" by Carl Schreier and "Guide to Colorado Wildflowers" by G.K. Guennel.
BONAP Distribution Map

Colorado Status:
Native

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County