Herbs annual, glandular pubes­cent throughout. Stems several, 10–200 cm. Leaves in poorly defined basal rosette and cauline; petiole 1.8–5.5 cm; blade unlobed, broadly cordate to ovate, 2.4–8 × 7 cm, margins sinuate-dentate, yellowish oil cells prominently lining veins abaxially. Racemes erect, elongating in flower. Flowers opening at sunrise; buds without free tips; floral tube 4–9 mm, with matted, villous hairs inside; sepals 4.5–9 mm; petals pale to dark lavender, diffusely purplish-flecked near base, white at very base, fading darker lavender, 9–14 mm; stamens unequal, filaments of antisepalous stamens 6–12 mm, of antipetalous ones 3.5–8 mm, anthers 2 mm, glabrous; style 14–22.5 mm, stigma exserted beyond anthers at anthesis. Capsules erect or ascending, clavate, 8–14 mm; pedicel 2–3.5 mm. Seeds 1–1.3 mm. 2n = 14.

Phenology: Flowering Jun–Oct.
Habitat: Rubble derived from volcanic tuff, partly on moist soil along springs.
Elevation: 1200–1400 m.

Distribution

• Generated Map
• Legacy Map

Nev.

Discussion

Chylismia megalantha is known from around Frenchman Drainage to French Peak and Skull Mountain in southern Nye County. P. H. Raven (1962, 1969) determined this species to be self-compatible, but outcrossing.

Selected References

None.

Lower Taxa

None.