Stems spreading, prostrate, or ascending, 10–60 cm, glandular. Leaves glandular; blade 10–25 × 6–12 mm, 4–8 times bracts, margins sharply serrate. Pedicels ascending, 7–25 mm. Flowers: calyx lobes equal; corolla lemon yellow with reddish veins in throat, abaxial lip prominent, adaxial lobes connate nearly to apices; stamens medially adnate to corolla. Capsules 4–5 mm. Seeds 60–80, brown, radial walls of reticulum mamillate. 2n = 22, 44.

Phenology: Flowering May–Oct.
Habitat: Wetlands, edges of streams, springs and seeps, deserts in upland washes and canyons with moisture.
Elevation: 90–1600 m.

Distribution

• Generated Map
• Legacy Map

Ala., Ariz., Fla., Ga., La., Miss., N.Mex., Tex., Mexico, Central America, introduced in Asia (India, Sri Lanka), Africa (Cameroon, Sierra Leone), Australia.

Discussion

Selected References

None.

Lower Taxa

None.