White-Margined Sandmat

White-Margined Sandmat, White-Margined Spurge, Rattlesnake Weed

Eurphorbia albomarginata Torr. and A. Gray

[also lised as Chamaescyce albomarginata (Torr. and A. Gray) Small]

Spurge Family (Euphorbiaceae)

▲ ▼ seedlings

▲ ▼ mature plants

▲ leaf and stem detail

▲ ▼ flower and fruit detail

White-Margined Sandmat:

  • Has small, oval, medium-green leaves with pointed tips and no teeth or purple spots or hairs to distinguish it from Prostrate Spurge, Spotted Spurge, Spreading Sandmat and Mat Spurge
  • Stems are green to pinkish red and do not root at the nodes; no hairs on stems
  • Cyathia (flowers) are small (about 1/8 inch diameter or smaller) and have white-petal-like appendages that are visible and somewhat showy
  • Capsule is smooth, with long, deeply-divided stigma lobes and cyathia are not split open much at fruiting; similar Creeping Spurge has shorter stigma lobes and more rounded leaf tips, and is more common midwest than white-margined spurge, which is more common in southwestern U.S., and is found only in the very southwestern midwest states

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