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Trifolium Linnaeus. Clover.

Key to Trifolium

A genus of about 240-250 species, annual and perennial herbs, nearly cosmopolitan (primarily north temperate).

ID notes:Draft key adapted from various published sources, including SE and C.

Ref: Chapel & Vincent (2013); Collins & Wieboldt (1992); Isely (1998); Zohary & Heller (1984). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map to see what it means. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Gary P. Fleming | Trifolium reflexum | Original Image ⭷
image of plant© Gary P. Fleming | Trifolium arvense | Original Image ⭷
image of plant© Bruce A. Sorrie | Trifolium pratense | Original Image ⭷
image of plant© Bruce A. Sorrie | Trifolium arvense | Original Image ⭷
image of plant© Richard & Teresa Ware | Trifolium incarnatum CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Gary P. Fleming | Trifolium campestre | Original Image ⭷
image of plant© Erik Danielson | Trifolium arvense source | Original Image ⭷
image of plant© Gary P. Fleming | Trifolium calcaricum | Original Image ⭷
image of plant© Gary P. Fleming | Trifolium aureum | Original Image ⭷
image of plant© Richard & Teresa Ware | Trifolium hybridum CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Gary P. Fleming | Trifolium virginicum | Original Image ⭷
image of plant© Bruce A. Sorrie | Trifolium campestre | Original Image ⭷