Petalonyx nitidus

S. Watson

Amer. Naturalist 7: 300. 1873.

Common names: Shiny-leaf sandpaper plant
Treatment appears in FNA Volume 12. Treatment on page 544.

Subshrubs or shrubs, bushy to moundlike, to 6 dm; branches of current season 11–37 cm. Leaves: petiole 1–4 mm; blade ovate, without marked size dimorphism, to 35 × 28 mm, base acute to obtuse, margins serrate to dentate, apex acute. Inflorescences 10–30-flowered. Flowers slightly bilaterally symmetric through curvature along length of flower; petals spatulate, 6–11 mm, claws postgenitally distally coherent, forming slitted corolla tube; stamens exserted laterally through slits between petal claws. 2n = 46.

Phenology: Flowering Mar–Aug.
Habitat: Sandy, gravelly, or rocky canyon slopes, arroyo bottoms, scrub.
Elevation: 400–2200 m.


V12 360-distribution-map.jpg

Ariz., Calif., Nev., Utah.


Lower Taxa