Virginia Tech Weed Identification Guide

Carpetweed: Mollugo verticillata

Weed Description:  A late-germinating, much-branched summer annual forming circular patches several feet in diameter.

Seedling:  Hypocotyl is short, green early turning brown with time. Cotyledons are oblong, thickened, smooth and 1.5 to 3.0 mm long.

Leaves:  Smooth, in whorls of 3-8 at each node.  Leaves are sessile, 1 to 3 cm long, widest above the middle and tapering to the base (oblanceolate).

Roots:   Small, branched taproot.

Stems: Smooth and much-branched, lying on the ground with tips ascending (decumbent).  Stems are green and 5 to 30 cm long.

Flowers: In clusters of 2 to 5 with slender 5-15 mm long stalks.  Each flower is small (4-5 mm wide), and white in color.

Fruit: A small (1.5-4 mm long) three-parted, egg-shaped capsule containing small orange to red seeds.

Identifying Characteristics:  Whorls of leaves at each stem node in addition to the circular, light green, mat-like growth.

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