Stemodia coahuilensis [Plantaginaceae]

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Scientific Name Stemodia coahuilensis (Leucospora coahuilensis) USDA PLANTS Symbol N/A
Common Name Coahuila Twintip ITIS Taxonomic Serial No. N/A
Family Plantaginaceae (Plantain) SEINet
Description Habitat: Rocky, limestone soils on slopes, canyons, and alluvial fans.
Plant: Widely-branched perennial about 12 inches across with woody base; young stems brownish in color, somewhat glandular-hairy.
Leaves: Opposite, once or twice pinnatifid, obovate in outline and 0.2 to 1.1 inches long, blades divided into two or three lobes, up to 0.4 inches wide; blades thick with somewhat glandular-hairy surfaces.
Inflorescence: Solitary, small, funnel-shaped flowers from leaf axils, corolla 0.5 to 0.75 inches long with 5 deep violet lobes and yellow/white throat; 5 sepals, linear-lanceolate, about 0.1 inch long and sparsely hairy; stamens with yellow filaments and two whitish anthers (hence the common name).
Bloom Period: April to October.
References: A New Species of Leucospora from the Chihuahuan Desert of Mexico by James Henrickson, An Annotated Flora of Reed Plateau and Adjacent Areas, Brewster County, Texas, by Wendy Weckesser and Martin Terry, and correspondence from Roy Morey of Lajitas, Texas.
Note: This rare plant was first identified by Henrickson in northern Mexico in 1989 and subsequently found in Brewster and Presidio Counties, Texas. Thanks to Roy Morey for providing me with the plant ID.
BONAP Distribution Map

Texas Status:

© Tom Lebsack 2023