Linum rupestre

(Rock Flax)


Linum rupestre, Reimer's Ranch Park, Travis Co. 4743


Linum rupestre, Reimer's Ranch Park, Travis Co. 4752


Linum rupestre, Glen Lakes, Austin, Travis Co. 4755

Scientific Name Linum rupestre USDA PLANTS Symbol LIRU2
Common Name Rock Flax ITIS Taxonomic Serial No. 29221
Family Linaceae (Flax) Wildflower Center Ref. Click Here
Description Habitat: Calcareous soils (caliche) in dry, rocky areas.
Plant: Erect, sparse perennial 8 to 28 inches tall, few to many slender generally smooth stems, branched at base and at inflorescence.
Leaves: Narrow, short, linear to linear-lanceolate leaves 3/8-to 3/4-inch long, upright; sparse stem leaves alternate, basal leaves opposite.
Inflorescence: Panicle-like; small funnel-shaped yellow flowers, each 1/4 to 1/2-inch across on very short pedicels; 5 petals; sepals have teeth along edges.
Bloom Period: April to August.
References: Flora of North America, "Wildflowers of the Texas Hill Country" by Marshall Enquist and "Manual of the Vascular Plants of Texas" by Correll and Johnston.
BONAP Distribution Map

Map Color Key
Texas Status:

Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County

© Tom Lebsack 2024