Flora of the Canadian Arctic Archipelago

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S.G. Aiken, M.J. Dallwitz, L.L. Consaul, C.L. McJannet, R.L. Boles, G.W. Argus, J.M. Gillett, P.J. Scott, R. Elven, M.C. LeBlanc, L.J. Gillespie, A.K. Brysting, H. Solstad, and J.G. Harris

Potentilla biflora Willd. ex Schltdl.

Rosaceae, Rose family.

Published in Ges. Naturf. Freunde Berlin Mag. Neuesten Entdeck. Gesammten Naturk. 7: 297. 1813–1816.

Type: Described from eastern Siberia.

Vegetative morphology. Leaves alternate; dying annually and non-persistent, or marcescent. Stipules present. Leaf blades compound.

Reproductive morphology. Inflorescences cymose. Sepals conventional. Epicalyx present. Sepals free. Petals conventional; free; 5; slightly lobed or undulating. Stamens 15–25(–30). Ovules per ovary 1.

North American distribution. Alaska, Yukon, continental Northwest Territories, continental Nunavut (?).

Northern hemisphere distribution. Amphi-Beringian. Wrangel Island, South Chukotka, East Chukotka, West Alaska, North Alaska – Yukon.

General notes. A Parks Canada report for Banks Island indicated that a voucher from Aulavik National Park had been deposited at the Parks Canada Headquarters herbarium in Inuvik before 1999. A voucher for the specimen was found in the herbarium in 1999, but the label data did not indicate where it was collected.

The mapping record of Potentilla biflora Willd. from near southern Victoria Island (see Porsild and Cody 1980) is from a location on continental North America (W.J. Cody, personal communication, 2000).

This is a diploid (2n = 14) and most probably fully sexual species isolated from all other arctic species of the genus. It has its main distribution and closest relatives in South Siberia, Central Asia, and the Himalayas.

Illustrations. • Close-up of plant in habitat. Flowering plant in high-alpine fellfield. Alaska, Alaska Range, Mount Healy. July, 1998. Photograph by R. Elven. Voucher at 0.


This publication is available on the internet (posted May 2011) and on CD-ROM (published in 2007). These versions are identical in content, except that the errata page for CD-ROM is accessible on the main index page of the web version.

Recommended citation for the web-based version of this publication: Aiken, S.G., Dallwitz, M.J., Consaul, L.L., McJannet, C.L., Boles, R.L., Argus, G.W., Gillett, J.M., Scott, P.J., Elven, R., LeBlanc, M.C., Gillespie, L.J., Brysting, A.K., Solstad, H., and Harris, J.G. 2007. Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. NRC Research Press, National Research Council of Canada, Ottawa. http://nature.ca/aaflora/data, accessed on DATE.

Recommended citation for the CD-ROM version of this publication: Aiken, S.G., Dallwitz, M.J., Consaul, L.L., McJannet, C.L., Boles, R.L., Argus, G.W., Gillett, J.M., Scott, P.J., Elven, R., LeBlanc, M.C., Gillespie, L.J., Brysting, A.K., Solstad, H., and Harris, J.G. 2007. Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. [CD-ROM] NRC Research Press, National Research Council of Canada, Ottawa.

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