Synonyms
Trifolium olivaceum Greene
Trifolium albopurpureum var. columbinum (Greene) D.J.Keil
Trifolium olivaceum var. griseum Jeps.
Trifolium columbinum var. olivaceum (Greene) Jeps.
Trifolium albopurpureum var. olivaceum (Greene) Isely
Trifolium olivaceum f. columbinum (Greene) McDermott
Trifolium olivaceum var. columbinum (Greene) Jeps.