Arctostaphylos klamathensis

S. W. Edwards

Four Seasons 6(4): 20, figs. 1, 2. 1983,.

Common names: Klamath manzanita
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 436. Mentioned on page 410.

Shrubs, prostrate or mat-forming, 0.1–0.5 m; burl absent; twigs sparsely glandular-hairy. Leaves: petiole 4–7 mm, (glandular-hairy); blade glaucous, dull, obovate to oblanceolate or widely elliptic, 1–3.5 × 0.5–2.5 cm, base cuneate or obtuse, margins entire, plane, surfaces papillate, ± scabrous, midvein sparsely, finely glandular-hairy. Inflorescences racemes, simple or 1-branched; immature inflorescence pendent, (globose), axis 0.5–1 cm, 1+ mm diam., sparsely glandular-hairy; bracts not appressed, scalelike, awl-like, 2–5 mm, apex acute, surfaces glandular-hairy. Pedicels 3–6 mm, finely glandular-hairy. Flowers: corolla white, urceolate; ovary glandular-hairy. Fruits globose, 6–7 mm diam., glabrous. Stones connate into single sphere. 2n = 26.

Phenology: Flowering late spring.
Habitat: Open, subalpine forests on soils derived from gabbro
Elevation: 1600-2000 m


Of conservation concern.

Arctostaphylos klamathensis is known from the eastern Klamath Mountains, Siskiyou and Trinity counties.

Selected References


Lower Taxa

V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
S. W. Edwards +
Klamath manzanita +
1600-2000 m +
Open, subalpine forests on soils derived from gabbro +
Flowering late spring. +
Four Seasons +
Endemic +  and Conservation concern +
Undefined tribe Arbuteae +
Arctostaphylos klamathensis +
Arctostaphylos +
species +