Eremothera chamaenerioides
Syst. Bot. Monogr. 83: 209. 2007.
Herbs glandular puberulent and sparsely strigillose distally, especially in inflorescence. Stems usually well branched from base, 8–50 cm, flowering only distally. Leaves cauline, with lower ones clustered near base, (0.7–) 2–8 (–10) × 0.1–2.5 cm; petiole 0.1–3.5 cm; blade very narrowly elliptic to narrowly elliptic, margins entire or sparsely denticulate. Inflorescences nodding. Flowers opening at sunset; floral-tube 1.5–3 mm, villous in proximal 1/2 inside; sepals 1.5–2.5 mm; petals white, fading pinkish, 1.8–3 mm; episepalous filaments 0.7–1.5 mm, epipetalous filaments slightly shorter, anthers 0.5–1.1 mm; style 2.3–4.5 mm, villous proximally, stigma 0.7–1 mm diam., surrounded by anthers at anthesis. Capsules narrowly cylindrical throughout, spreading, straight, terete, 35–60 × 0.7–1 mm, regularly but tardily dehiscent. Seeds monomorphic, gray, 0.9–1 × 0.3–0.4 mm, finely reticulate. 2n = 14.
Phenology: Flowering (Jan–)Feb–Jun.
Habitat: Sandy desert slopes and flats.
Elevation: -50–1700 m.
Distribution
Ariz., Calif., Nev., N.Mex., Tex., Utah, Mexico (Baja California), Mexico (Sonora)
Discussion
Eremothera chamaenerioides occurs in sub-Mogollon Arizona, southeastern California, southern Nevada, southern New Mexico, trans-Pecos Texas, and Kane, Millard, Tooele, and Washington counties, Utah. P. H. Raven (1969) determined Eremothera chamaenerioides to be self-compatible and autogamous.
Selected References
None.