Not an accepted name (status: unknown). The accepted name is Trifolium campestre subsp. campestre.

Trifolium campestre var. minus (W.D.J.Koch) P.Fourn., 1804 4% complete

No common name

D. Jordanov, Fl. nar. rep. balg. 6:356. 1976

There is no corrections for Trifolium campestre var. minus yet.