| Author | L. | |
| Distribution | Three collections are known: Granville, Mecklenburg, and Orange counties, in 1988, 1944, and 1962, respectively.
Native of Europe; in N.A. VT to GA, TX, and MO; Pacific states and B.C. | |
| Abundance | Very rare. | |
| Habitat | Roadsides, weed in cemetery. | |
| Phenology | Flowering and fruiting April-August. | |
| Identification | Knotted Clover is most notable for its axillary and terminal heads, which are ovoid to begin with but with age become cylindrical. The flowers are roseate. | |
| Taxonomic Comments | Trifolium 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. | |
| Other Common Name(s) | | |
| State Rank | SE | |
| Global Rank | GNR | |
| State Status | | |
| US Status | | |
| USACE-agcp | | |
| USACE-emp | | |
