Crotalaria montana, Roxb. ex Roth, 1821

Lohit, Tushar Anilrao & Wagh, Vijay Vishnu, 2024, Taxonomic notes and synonymy in Crotalaria montana (Fabaceae: Crotalarieae), Phytotaxa 640 (3), pp. 293-300 : 298

Affinities Crotalaria montana with Crotalaria albida

Crotalaria montana is the most closely allied to C. albida . Both species share some morphological similarities, i.e. minute caducous stipules, raceme terminal, size of the pod, standard petal with notch, number of seeds in the pod, colour of mature pod. Nevertheless C. montana and C. albida can be distinguished from each other by respectively prostrate and ascending habit vs erect and procumbent habit; leaves narrow elliptic to oblanceolate vs linear oblong-lanceolate; Stipule present vs stipule absent; leaves dimorphic vs leaves monomorphic; inflorescence 5–10 flowered and 8–10 cm long vs inflorescence with 20–25 flowers and 10–15 cm long; standard petal suborbicular, no hairs on back and apex vs standard petal obovate-oblong, hairs on back and apex; standard petal apex notched vs standard petal rounded; callosite lamelliformis vs callosite ridged; keel twisted above the middle vs keel twisted below the middle; pod colour black vs pod colour brown; number of seed per pod 4–8 vs number of seed per pod 8–10; style hair in single row and arranged spirally vs style hair in single row, arranged in whorl.