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Chamaesyce prostrata (Prostrate spurge)
San Antonio River Authority

Chamaesyce prostrata

Chamaesyce prostrata (Aiton) Small

Prostrate Spurge, Prostrate Sandmat, Ground Spurge

Euphorbiaceae (Spurge Family)

Synonym(s): Euphorbia chamaesyce, Euphorbia prostrata

USDA Symbol: CHPR6

USDA Native Status: L48 (N), HI (I), PR (N), VI (N)


From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Arrangement: Opposite
Leaf Shape: Oblong , Ovate
Leaf Venation: Palmate
Leaf Margin: Dentate , Serrate
Leaf Base: Cordate
Breeding System: Flowers Unisexual
Fruit Type: Capsule
Size Notes: Stems prostrate to decumbent, up to about 1 foot long. Usually not mat-forming.

Bloom Information

Bloom Color: White , Pink
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct
Bloom Notes: Both male and female flowers are very small.


USA: AL , AR , AZ , CA , FL , GA , HI , IA , IL , KS , KY , LA , MA , MD , MO , MS , NC , NE , NM , OH , OK , PA , SC , SD , TN , TX , UT , VA

Growing Conditions

Light Requirement: Sun , Part Shade
Soil Moisture: Dry

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Patsy Glenn Refuge, c/o Wimberley Birding Society - Wimberley, TX

Herbarium Specimen(s)

NPSOT 0349 Collected May 19, 1993 in Bexar County by Louise Morrell
NPSOT 1116 Collected Oct 12. 1994 in Bexar County by Harry Cliffe

2 specimen(s) available in the Digital Herbarium


Bibref 293 - Manual of the Vascular Plants of Texas (1979) Correll, D. S. & M. C. Johnston

Search More Titles in Bibliography

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Chamaesyce prostrata in USDA Plants
FNA: Find Chamaesyce prostrata in the Flora of North America (if available)
Google: Search Google for Chamaesyce prostrata


Record Modified: 2023-02-01
Research By: TWC Staff

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