decumbent

Most arrived more or less by acceptable means, but the suburban affliction defined as "a grass with creeping or decumbent stems which root freely at the nodes" sneaked in.

From Time Magazine Archive

The root of the hoary, decumbent, and less elegant, but larger-flowered Hedysarum mackenzii is poisonous, and nearly killed an old Indian woman at Fort Simpson, who had mistaken it for that of the preceding species.

From "Into the Wild" by Jon Krakauer

The stems are many from the root, 16 to 18 inches long, ascending or decumbent and prostrate, leafy, glabrous, rooting freely at the lower nodes, especially when procumbent.

From A Handbook of Some South Indian Grasses by K. Rangachari

The fertile flocci were decumbent, probably from the weight of the spores, and the tufts were a little elevated above the surface of the matrix.

From Fungi: Their Nature and Uses by M. C. (Mordecai Cubitt) Cooke

Resembling n. 3, but the culms decumbent at base and matted, the leaves short and usually widely spreading, and the lower glumes barely acute, not half the length of the upper one.—W.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray