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Potentilla biennis

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This is an old revision of this page, as edited by Plantdrew (talk | contribs) at 19:01, 13 October 2015 (add vernacular name). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Potentilla biennis
Scientific classification
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P. biennis
Binomial name
Potentilla biennis

Potentilla biennis is a species of cinquefoil known by the common names biennial cinquefoil[1] and Greene's cinquefoil. It is native to western North America from northwestern Canada to the southwestern United States, where it grows in moist habitat. This is an annual or biennial herb producing an erect stem up to 70 centimeters tall from a taproot. It is hairy and glandular in texture. The hairy leaves are each divided into three toothed, oval leaflets each up to 3 centimeters long. The inflorescence is a cyme of several flowers. Each flower has five oval yellow petals 1 or 2 millimeters long and five triangular sepals which are slightly longer. The fruit is a minute whitish achene.

References

  1. ^ NRCS. "Potentilla biennis". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 13 October 2015.