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Trifolium
Family: Fabaceae
Trifolium image
Max Licher
  • Gleason & Cronquist
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Vascular plants of NE US and adjacent Canada
Cal-tube campanulate to tubular, sometimes oblique, the lobes setaceous to triangular, often unequal; pet all separate (spp. 15-17) or ±united into a tube, usually withering and persistent after anthesis; standard ovate to oblong or obovate, often folded about the wings or with only its summit outwardly curved; stamens 10, diadelphous, filaments dilated below the anthers; fr short, straight, often included in the persistent cal, dehiscent or indehiscent, 1-6-seeded; herbs with 3-foliolate, serrulate lvs and small fls in heads, spikes, or head-like racemes or umbels. In the absence of fr, our spp. may be distinguished from Medicago by their strongly bilabiate cal. 250, widespread.

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.
Species within checklist: PSC 5550/6550 Set 1 Weeds
Trifolium repens
Image of Trifolium repens
Map not
Available

This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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