The Genus Trifolium

Hare's Foot, Rabbitfoot Clover, Rabbit-foot Clover: Trifolium arvense -
Foothill Clover, Tree Clover: Trifolium ciliolatum -
Cup Clover: Trifolium cyathiferum -
Least Hop Clover: Trifolium dubium - A prostrate herb to 6 inches in height. This has typical, but small, clover leaves, with spherical clusters of tiny yellow flowers.
Woolly-head Clover: Trifolium eriocephalum var. eriocephalum -
Strawberry Clover: Trifolium fragiferum -
Alsike Clover: Trifolium hybridum -
Purple Clover: Trifolium macraei var. dichotomum -
Big-head Clover: Trifolium macrocephalum - Wildflower to 8 inches tall. Flower heads clover-like, one to two inches across, ball shaped, pink or red tinged. Leaves palmately compound.
Small-head Clover: Trifolium microcephalum -
Purple Clover, Red Clover: Trifolium pratense - Wildflower to two feet high. Individual flowers like small pink or purple claws. Flowers in tight, thumb-sized, round clumps. Leaves in threes.
Field Clover, Hop Clover: Trifolium campestre (Synonym: Trifolium procumbens) -
White Clover: Trifolium repens - Wildflower to one foot high. Individual flowers like small white claws. Flowers in tight, thumb-sized, round clumps. Leaves in threes.
Subterraneum Clover: Trifolium subterraneum -
Few-flowered Clover, Sand Clover: Trifolium oliganthum (Synonyms: Trifolium pauciflorum, Trifolium variegatum var. pauciflorum) -
Subterranean Clover, Burrowing Clover: Trifolium subterraneum -
Sand Clover, White-tip Clover: Trifolium variegatum (Sand Clover, White-tip Clover: Trifolium tridentatum (Synonyms: Trifolium appendiculatum, Trifolium geminiflorum, Trifolium melanthum, Trifolium polyodon, Trifolium trilobatum)) -