Arctostaphylos rudis

Jepson & Weislander
Erythea 8: 100. 1938 ,.
Common names: Shagbark manzanita
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 416. Mentioned on page 406, 409, 411.

Shrubs, erect, 1–3 m; burl present or absent; bark on older stems persistent, gray, shredded; twigs sparsely short-hairy. Leaves erect; petiole 3–8 mm; blade bright green, shiny, elliptic, 1–3 × 1–2 cm, base cuneate to rounded, margins entire, plane, surfaces smooth, puberulent, glabrescent. Inflorescences racemes, (simple or 1-branched); immature inflorescence pendent, axis 0.5–1 cm, 1+ mm diam., sparsely short-hairy; bracts not appressed, scalelike, deltate, 2–6 mm, apex acuminate, surfaces glabrous. Pedicels 3–6 mm, glabrous. Flowers: corolla white, conic to urceolate; ovary glabrous. Fruits depressed-globose, 8–14 mm diam., glabrous. Stones distinct. 2n = 26.

Phenology: Flowering winter–early spring.
Habitat: Maritime chaparral on sandy soils
Elevation: 0-100 m


Of conservation concern.

Arctostaphylos rudis is found along the coast in Nipomo and Burton mesas and Point Sal, Santa Barbara and San Luis Obispo counties.

Selected References


Lower Taxa


... more about "Arctostaphylos rudis"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Jepson & Weislander +
Shagbark manzanita +
0-100 m +
Maritime chaparral on sandy soils +
Flowering winter–early spring. +
Endemic +  and Conservation concern +
Undefined tribe Arbuteae +
Arctostaphylos rudis +
Arctostaphylos +
species +