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

Discussion

Of conservation concern.

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

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
S. W. Edwards +
glandular-hairy +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not furrowed +
gray +  and reddish +
persistent +
exfoliating +
obtuse;cuneate +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
obovate;oblanceolate or widely elliptic +
coriaceous +
0.5cm;2.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
awl-like +  and scale-like +
Klamath manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
1600-2000 m +
undifferentiated +
fusiform +
stonelike +
indehiscent +
globose +
Open, subalpine forests on soils derived from gabbro +
multicellular +
1-branched +  and simple +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
glandular-hairy +
parietal +, axile +  and placentation +
glandular-hairy +
tenuinucellate +  and unitegmic +
glandular-hairy +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
reduced +
not sticky +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering late spring. +
4-5-carpellate +
Four Seasons +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
Endemic +  and Conservation concern +
prostrate +  and erect +
peltate +  and capitate +
straight +
glandular-hairy +
papillate +
Undefined tribe Arbuteae +
Arctostaphylos klamathensis +
Arctostaphylos +
species +
glandular-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
shrub +, mat-forming +  and prostrate +
heterotrophic +, autotrophic +  and mycotrophic +