Having three distinct longitudinal angles or ridges; three-angled in cross-section.

Three-sided or sharply triangular, often describing stems or fruits.

Having three rows of spikelets or inflorescence branches.

Arranged in three vertical rows along a stem.

Dividing into three branches or parts; often used to describe patterns of plant branching.

Having three prominent longitudinal veins or ribs.

Having three fingers or finger-like projections.

Having three teeth or tooth-like projections, especially on the margin of a leaf or petal.

Having three leaflets arranged on a single leaf stalk.

Composed of three distinct leaflets, often seen in legumes and clover species.