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Trifolium suffocatum

Suffocated clover

Trifolium trichocephalum

Trifolium vesiculosum

Arrowleaf clover

Trifolium willdenovii

Tomcat clover

Triglochin maritima

Sea arrow-grass

Trifolium polyodon

Vernonieae chinensis

Trigonella caerulea

Blue fenugreek

Trifolium sylvaticum

Trifolium subterraneum

Sub clover

Trifolium uniflorum

One-flower clover

Trigonella foenum-graecum

Fenugreek

Trillium cernuum

Whip-poor-will flower

Trillium cuneatum

Little sweet betsy

Trillium erectum

Birthroot

Trillium flexipes

Nodding wakerobin

Trillium grandiflorum

Large white trillium

Trillium lancifolium

Lanceleaf wakerobin

Trillium nivale

Snow trillium

Trillium ovatum

Pacific trillium