Like the best of villains, Buffalobur Nightshade or Buffalo Burr (Solanum rostratum) is deceptively attractive. It has cheery yellow flowers and ornately-lobed dark green leaves similar to those of a watermelon.
But if you look a little bit closer,its innately evil nature becomes apparent. Long, sharp thorns cover the stems and surround the flowers and even line the veins of the attractive leaves. Its yellow flowers are followed by wickedly spiny burrs that can become scattered about and are quite painful to step on.
The stout spines of Buffalobur Nightshade are not merely sharp, these spines are also covered with a substance that can cause intense, lingering pain in anyone stabbed by them.