| Author | L. | |
| Distribution | The sole NC record is of plants at a campground at Cape Hatteras National Seashore, Dare County. Photos were taken in June 2018 by B. Finzel and verified by M. Vincent.
Native of Europe; in N.A only AL, NJ, and NC. | |
| Abundance | Very rare. The population is very localized. | |
| Habitat | Grassy parking lot at a National Park Service campground. | |
| Phenology | Flowering and fruiting June-?. | |
| Identification | Rough Clover is a small clover with flowering heads held tight in leaf axils. Flowers are white and narrow, the calyx lobes elongate, curved outward, and sharp-tipped. | |
| 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 | | |
