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Northern Prairie Wildlife Research Center

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Aquatic and Wetland Vascular Plants of the Northern Great Plains

15. Polygonaceae, the Smartweed Family

2. Rumex L. -- Dock

9. Rumex stenophyllus Ledeb.

Very similar to R. crispus but the leaves not as undulate-crisped, otherwise differing as follows: Valves triangular to rotund-ovate in outline, 3.5-5.5 mm long, 4-5.5 mm wide, coarsely toothed on the margins, entire at the triangular tip; tubercles 3, ellipsoid, mostly 1/3 to 1/2 the length of the valve; achenes brown, 2-2.5(3) mm long. Jul--Sep. Wet meadows, shores, ditches, stream banks and disturbed places, often where alkaline or saline; frequent; (Intro. from Europe to e N.Amer., now known from MN, Man. and MT, s to MO, OK, n TX and WY, probably still spreading).
GIF- Distribution Map

Map key

Previous Species -- Rumex pseudonatronatus Borbas
Return to Family -- Polygonaceae - The Smartweed Family

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