Click on image to enlarge
|
DESCRIPTION:
Johnsongrass is one of the most troublesome of perennial grasses. It reproduces
from underground stems and seeds. The seedling resembles a young corn seedling, but can be distinguished by examining
the attached seed after careful removal from the soil. The seed is football to egg-shaped and dark reddish-brown to black.
The first blade is parallel to the ground. Blades are hairless with smooth margins and the midvein is whitish at the base.
Auricles are lacking and ligules are membranous to hairy. The mature plant grows in spreading, leafy patches
that may be as tall as 6 to 7 feet (1.8 - 2.1 m). Leaves have a prominent
whitish midvein, which snaps readily when folded over. The flower head
is large,
open, well-branched, and
often reddish tinged. Underground stems are thick, fleshy, and segmented.
Roots and shoots can rise from each segment. The ligule consists of a
fringe of dense, fine hairs.
Grass ID illustration.
|
