Anulocaulis eriosolenus
(Big Bend Ringstem)
Anulocaulis eriosolenus, Hot Springs Trail, Big Bend National Park 1353
Anulocaulis eriosolenus, Hot Springs Trail, Big Bend National Park 1311
Anulocaulis eriosolenus, Hot Springs Trail, Big Bend National Park 1341
Anulocaulis eriosolenus, Hot Springs Trail, Big Bend National Park 1327
Anulocaulis eriosolenus, Hot Springs Trail, Big Bend National Park 1342
Anulocaulis eriosolenus, Hot Springs Trail, Big Bend National Park 2539
| Scientific Name | Anulocaulis eriosolenus | USDA PLANTS Symbol | ANER |
| Common Name | Big Bend Ringstem | ITIS Taxonomic Serial No. | 19586 |
| Family | Nyctaginaceae (Four O'clock) | SEINet Reference |
Click Here |
| Description | Habitat: Sandy, gravelly calcareous silty or gypsum soils; 2000 to 4000 ft. Plant: Annual or short-lived perennial (or biennial) from less than 1 foot to over 5 feet tall with stout stems branched low and growing erect or spreading; stems are hairless with conspicuous sticky bands between the nodes. Leaves: Mostly basal or growing low on the stems, thick, dark green leaves are opposite on stout petioles 3/8 to 1-5/8 inches long; large blades are orbicular-oval to ovate, 1 to 4 inches long and 3/4 to 2-3/4 inches wide; bases are cordate and the tips are rounded. Inflorescence: Sinle or pairs of flowers on long, leafless branches, each about 1/2-inch across with a pink to magenta perianth with 5 lobes (petals) with darks streaks where they meet; 5 protruding dark pink stamens and yellowish-tan anthers. Bloom Period: May to October. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildflowers of Texas" by Michael Eason and Flora of North America. |
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