Medicago polymorpha Linnaeus var. rigidula Linnaeus, Species Plantarum 2: 780. 1753.

RCN: 5720.

Lectotype (Heyn in Bull. Res. Council Israel, Sect. D, Bot. 7: 168. 1959): [icon] "Medica hirsuta echinis rigidioribus" in Bauhin & Cherler, Hist. Pl. Univ. 2: 385. 1651.

Current name: Medicago rigidula (L.) All. ( Fabaceae: Faboideae).