Euphorbia albomarginata
(Rattlesnake Weed)
Euphorbia albomarginata, The Nature Conservancy north of Marathon, Brewster Co 5313
Euphorbia albomarginata, The Nature Conservancy north of Marathon, Brewster Co 5312
Euphorbia albomarginata, Lajitas Airport Trails, Brewster Co. 4423
Euphorbia albomarginata, Lajitas Airport Trails, Brewster Co. 4421-1
Euphorbia albomarginata, Lajitas Airport Trails, Brewster Co. 4418
Euphorbia albomarginata, Lajitas Airport Trails, Brewster Co. 4421-2
Euphorbia albomarginata, Lajitas Airport Trails, Brewster Co. 4422
| Scientific Name | Euphorbia albomarginata (Chamaesyce albomarginata) | USDA PLANTS Symbol | CHAL11 |
| Common Name | Rattlesnake Weed, Whitemargined Sandmat | ITIS Taxonomic Serial No. | 28038 |
| Family | Euphorbiaceae (Spurge) | SEINet Reference |
Click Here |
| Description | Habitat: Limestone soils and poorly-drained clay soils; in open or disturbed areas in desert scrub, grasslands, mesquite woodlands. Plant: Prostrate, mat-forming perennial with stems branching from a central point and frequently rooting at nodes; stems 4 to 30 inches long. Leaves: Opposite stem leaves on very short petioles; blades orbicular to oblong, 1/8 to 1/3 inch long, entire margins often with a red blotch in the center. Inflorescence: Very small flowers with what appear to be 4 white petals; each blossom is actually a cyathium, a cup formed of white petal-like bracts which contain very small, separate male and female flowers. For a detailed description click here. Fruit: Smooth, tiny, broadly oval-shaped, ~1/16-inch long. Bloom Period: April to September. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Northern Chihuahuan Desert Wildflowers" by Steve West, and SEINet. |
BONAP Distribution Map Map Color Key |
Texas Status: Native |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2024