Solanum rostratum Dunal. Buffalo-bur, Kansas-thistle, Buffalo-bur Nightshade. Phen: May-Oct. Hab: Disturbed areas, especially overgrazed pastures and feedlots. Dist: The native distribution obscure, at least in c. and w. United States and Mexico.
Origin/Endemic status: Native
Synonymy: = C, F, G, GrPl, Il, K1, K3, K4, Mex, Mi, NcTx, NE, NY, Pa, RAB, Tn, Tx, Va, W; = Androcera rostrata (Dunal) Rydb. – S; ? Solanum cornutum Lam., misapplied
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© Aidan Campos 
© Radford, Ahles and Bell | Original Image ⭷
© Aidan Campos