EcoFlora - Spirodela polyrhiza

Spirodela polyrhiza (L.) Schleid.
Family: Araceae Common Duckmeat [Lemna major Griff., more] Paul Rothrock	Gleason & Cronquist Indiana Flora Resources Vascular plants of NE US and adjacent Canada Thallus broadly oval to obovate, anthocyanic beneath, (3-)5-8(-10) mm, ±evidently 5-15-nerved, forming turions especially in the fall; roots mostly 5-12; spathe open only at the top; seeds 1 or 2, smooth or minutely reticulate; 2n=30, 40, 50. Quiet water; nearly cosmopolitan, and throughout our range. Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp. ©The New York Botanical Garden. All rights reserved. Used by permission. From Flora of Indiana (1940) by Charles C. Deam Locally abundant throughout the state in lakes, ponds, swamps, ditches, and sluggish streams. These plants are preyed upon by insects. …… Indiana Coefficient of Conservatism: C = 5 Wetland Indicator Status: OBL
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