trigonous

It is very much flattened in Paspalum scrobiculatum, but somewhat trigonous in Digitaria sanguinalis.

Grain is oblong shining light reddish brown, narrowed at both ends and somewhat trigonous.

Grain is sub-globose, oblong or trigonous, closely invested by the glume and its palea.

Grain is oblong, obtusely trigonous, or concavo-convex, red-brown and rugulose on the ventral side.

Grain is narrow, trigonous, oblong, translucent and shining.