Vascular Plants of North Carolina
Account for Burdock Clover - Trifolium lappaceum   L.
Members of Trifolium with account distribution info or public map:
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Section 6 » Order Fabales » Family Fabaceae
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DistributionA single collection is known: Columbus County, Hallsboro, railroad yard and waste ground, 10 June 1958, by C.R. Bell. An Orange County specimen was grown at the Soil Conservation Service nursery in 1941.

Native of the Mediterranean region; in N.A. NC to FL, TX, and OK; PA, NJ, CA.
AbundanceVery rare. Perhaps not extant anymore.
HabitatRailroad yard and waste ground.
PhenologyFlowering and fruiting April-August.
IdentificationAs its name suggests, Burdock Clover has a globose inflorescence a bit like a fruit of burdock (genus Arctium), due to the projecting, acuminate, calyx lobes.
Taxonomic CommentsTrifolium is a large genus of some 240-250 species globally, mostly north-temperate zone. Most are readily recognized as a clover by their 3 broad leaflets and globular to hemispherical head of densely-packed flowers. Flowers vary from white to pink, and red; the hop clovers have tiny yellow flowers. Some species were introduced for their forage value for livestock, others hitched a ride with hay, packing material, etc. Our two native species -- T. carolinianum and T. reflexum -- have suffered great loss of habitat and are now rare.
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State RankSE
Global RankGNR
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