Grass stems

Usage examples of culms.

Those on the upright culms simply rise up vertically at night, so that their tips are directed towards the zenith.

Strephium floribundum: culms with leaves during the day, and when asleep at night.

Horizontally extended leaves arising from much inclined or almost horizontal culms, move at night so that their tips point towards the apex of the culm, with one lateral margin directed towards the zenith.

Bamboos were the size of trees, seventy-five feet tall with culms a foot in diameter.

The itchiness of culms stuck in his sweat was familiar too, and not nearly as bad as after the days he'd spent in the bed of a truck shoveling the loose grain pouring out of a combine's spout.