The Genus Trifolium

Rancheria Clover: Trifolium albopurpureum var. albopurpureum (Synonym: Trifolium macraei var. albopurpureum) -

Branched Indian Clover: Trifolium albopurpureum var. dichotomum (Synonyms: Trifolium dichotomum, Trifolium macraei var. dichotomum) -

Narrowleaf Crimson Clover: Trifolium angustifolium -

Hare's foot, Rabbitfoot Clover, Rabbit-foot Clover: Trifolium arvense -

Bearded Clover: Trifolium barbigerum -

Notchleaf Clover: Trifolium bifidum var. decipiens -

Brewer's Clover: Trifolium breweri -

Hop Clover, Field Clover: Trifolium campestre (Synonym: Trifolium procumbens) -

Nodding Clover: Trifolium cernuum -

Foothill Clover, Tree Clover: Trifolium ciliotatum -

Cup Clover, Bowl Clover, Wide-collared Clover: Trifolium cyathiferum -

Poverty Clover, Cowbag Clover: Trifolium depauperatum var. depauperatum -

Least Hop Clover, Suckling Clover: Trifolium dubium -

Prickly Clover: Trifolium echinatum -

Woollyhead Clover: Trifolium eriocephalum ssp. arcuatum (Synonyms: Trifolium arcuatum, Trifolium eriocephalum var. piperi) - ?

Cascade Woolly Head Clover: Trifolium eriocephalum ssp. cascadense -

Woolly Head Clover, Woolly-head Clover: Trifolium eriocephalum ssp. eriocephalum -

Strawberry Clover: Trifolium fragiferum -

Puff Clover, Sour Clover: Trifolium fucatum (Synonym: Trifolium flavulum) -

Clustered Clover: Trifolium glomeratum -

Rose Clover: Trifolium hirtum -

Howell's Clover: Trifolium howellii -

Alsike Clover: Trifolium hybridum -

Crimson Clover: Trifolium incarnatum -

Twin Clover: Trifolium latifolium - ?

Elmer's Clover: Trifolium longipes var. elmeri -

Hansen's Clover: Trifolium longipes var. hansenii -

Longstalk Clover: Trifolium longipes var. multiovulatum (Synonyms:Trifolium longipes ssp. caurinum, Trifolium longipes ssp. shastense, Trifolium longipes var. shastense) -

Oregon Clover: Trifolium longipes var. oreganum -

Chilean Clover: Trifolium macraei -

Big-headed Clover, Big-head Clover, Large-head Clover: Trifolium macrocephalum -

Small-head Clover, Small-headed Clover, Woolly Clover: Trifolium microcephalum -

Thimble Clover, Valparaiso Clover: Trifolium microdon -

Tomcat Clover, Sand Clover, Springbank Clover: Trifolium obtusiflorum (Synonyms: Trifolium tridentatum, Trifolium willdenowii) -

Few-flowered Clover: Trifolium oliganthum (Synonyms: Trifolium pauciflorum, Trifolium variegatum var. pauciflorum) -

Red Clover: Trifolium pratense (Synonyms: Trifolium pratense var. frigidum, Trifolium pratense var. sativum) - Wildflower to two feet high. Individual flowers like small pink or purple claws. Flowers in tight, thumb-sized, round clumps. Leaves in threes.

White Clover, Dutch Clover: Trifolium repens - Wildflower to one foot high. Individual flowers like small white claws. Flowers in tight, thumb-sized, round clumps. Leaves in threes.

Siskiyou Clover: Trifolium siskiyouense -

Knotted Clover: Trifolium striatum -

Subterranean Clover, Burrowing Clover: Trifolium subterraneum -

White-tip Clover: Trifolium variegatum (Synonyms: Trifolium geminiflorum, Trifolium melananthum) -

Arrowleaf Clover: Trifolium vesiculosum -

Tomcat Clover: Trifolium wildenovii -

Springbank Clover, Cows Clover, Salt Marsh Clover: Trifolium wormskioldii (Synonyms: Trifolium fimbriatum, Trifolium wormskjoldii, Trifolium wormskioldii var. wormskioldii, Trifolium wormskjoldii var. wormskjoldii) -