Knawel

Scientific Name - Scleranthus annuus L.
Family - Caryophyllaceae

Freely-branched winter annual with a prostrate habit. Leaves, opposite, very narrow, linear in shape, sharply pointed and generally bent downward. Small green flowers, that lack petals, found in clusters in the leaf axils. Reproduces by seed. Found in the Eastern half of the United States, north to Canada, west to California and Pacific Coast, and Europe.