Fall Panicum, summer annual Grass:
Fall panicum and witchgrass can be identified by many features. For fall panicum, first check the collar region (below; 4), and look for the hairy ligule (1), the leaf blade (2), and the sheath surrounding the culm or stem (3).
Can you tell which is witchgrass and which is fall panicum (below)? What are the differences?
Leaves:
Seed heads:
Witchgrass, another summer annual grass
Witchgrass looks very similar to fall panicum, but it has lots of hairs on its leaves and elsewhere (below).
Seedheads (panicles) of witchgrass are relatively more spread out (below) than those of fall panicum. The seeds of both are much smaller than those of wild proso millet, which is a good way to tell them apart also.
Witchgrass in corn and monoculture (below).
Comparison between fall panicum and witchgrass:
Your turn, which is witch?
