Cevallia sinuata

Click on the images below to see larger versions.

Scientific Name Cevallia sinuata USDA PLANTS Symbol
CESI
Common Name Stinging Serpent, Stinging Cevallia ITIS Taxonomic Serial No.
19842
Family Loasaceae (Stickleaf)
SEINet
Description Habitat: Various soil types in open areas, washes and along roadsides; found in the Big Bend area, southeast along the Rio Grande and north sporadically as far as the Texas Panhandle.
Plant: Short, woody, branched perennial subshrub up to 2 feet tall, armed with long stinging hairs.
Leaves: Elliptic, 3/4 to 3 inches long; lower leaves short-petiolate, upper sessile; margins sinuate-toothed to pinnately lobed; surfaces covered with stinging hairs.
Inflorescence: On peduncles 1 to 4 inches long, very congested cymes resembling balls about 1-1/2 inch across with many very small yellow blossoms and buds; flowers with 5 slender, hairy yellow petals surrounded by similar-looking sepals, 5 stamens.
Blooming Period: April to October.
References: "Little Big Bend" by Roy Morey, "Manual of the Vascular Plants of Texas" by Correll and Johnston and SEINet.
Note: Thanks to Roy Morey for the plant identification.
Texas Status
Introduced
Native

© Tom Lebsack 2019