Name from , a bug, and , resemblance; from the form of the achene.
Fruit usually an achene, compressed or 3–4-angled or -winged.
Calyx 6-parted or -cleft, colored, persistent about the achene.
Compared with U. dioica, this achene is thinner and shorter.
Achene triangular, pointed with the persistent base of the style.
The nut or achene—a fruit with hard and dry walls, ...