Solanum ptychanthum -- West Indian Nightshade


Other names: Solanum ptycanthum, Black Nightshade, Eastern Black Nightshade

[1] Seeds of Solanum nigrum; see notes

Fruit and plant could be confused with the non-native Black Nightshade, Solanum nigrum, which may be rare or unrecorded in Michigan. S. nigrum has duller fruit, and the flowers/fruit are racemiform (do not arise from a single point, as do S. ptychanthum, compare photo above to this photo of S. nigrum).

Seeds of S. nigrum are comma-shaped, while seeds of S. ptychanthum are rounder. They look similar to Lonicera seeds, but are very tiny.


(Numbers in photo captions are photo credits, listed in the "Photo Credits" tab at the top of the page)