Polygonum cognatum Meissner [ Polygonum rupestre Kar. & Kir.]
Komarov (Komorov), V.L., Flora of the U.S.S.R. (1934-1964)

vol. 5
t. 39 p. 615 f. 6
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Polygonum cognatum Meissner

name cited:
Polygonum rupestre Kar. & Kir.
name recognized:
Polygonum cognatum Meissner
family: Polygonaceae
epithet cited: rupestris,-is,-e

epithet recognized: cognatus,-a,-um

Illustration contributed by:
Smithsonian Institute, Washington, D.C., U.S.A.
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heterotypic synonyms:
Polygonum alpestre C. Meyer; Polygonum ammanioides Jaub. & Spach; Polygonum myriophyllum H. Gross; Polygonum rupestre Kar. & Kir.;
no full size  illustration available (3a)