Arctostaphylos viscida

Parry

Bull. Calif. Acad. Sci. 2: 492. 1887 ,.

Common names: Sticky whiteleaf manzanita
IllustratedEndemic
Treatment appears in FNA Volume 8. Treatment on page 423. Mentioned on page 411, 429, 430.

Shrubs, erect, 1–3 m; burl absent; twigs glabrous, sparsely short-hairy, or densely glandular-hairy. Leaves: petiole 5–12 mm; blade white-glaucous, dull, ovate to ± orbiculate, 2–5 × 2–4 cm, base rounded, truncate, or ± lobed, margins entire or ciliate, plane, surfaces smooth-papillate, rough, scabrous, glabrous or sparsely puberulent. Inflorescences panicles, 4–7-branched; immature inflorescence pendent or ascending, branches spreading, axis 1–3 cm, 1+ mm diam., densely glandular, (sticky); bracts appressed, (glaucous), scalelike, deltate, 3–4 mm, apex acute to acuminate, surfaces viscid-glandular (rarely minutely stipitate-glandular) or glandular-hairy, especially along margins. Pedicels 6–10 mm, finely to densely glandular-hairy. Flowers: corolla white, conic to urceolate; ovary glabrous or glandular-hairy. Fruits depressed-globose, 6–8 mm diam., glabrous or sparsely to densely glandular-hairy, (sometimes viscid). Stones distinct.

Discussion

Subspecies 3 (3 in the flora).

Arctostaphylos viscida is distributed widely in the Sierra Nevada and northern Coast Ranges of California and the Cascade Mountains in southern Oregon. The subspecies occasionally occur in mixed populations, especially subspp. viscida and mariposa.

Selected References

None.

Key

1 Twigs densely glandular-hairy; leaf blades sparsely short glandular-hairy. Arctostaphylos viscida subsp. mariposa
1 Twigs and leaf blades glabrous (except sometimes near inflorescence) > 2
2 Ovaries and fruits smooth, glabrous, not viscid. Arctostaphylos viscida subsp. viscida
2 Ovaries and fruits rough, densely glandular, viscid. Arctostaphylos viscida subsp. pulchella

"entire" is not a number.

... more about "Arctostaphylos viscida"
Acute (?) +  and Acuminate (?) +
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
not furrowed +
gray +  and reddish +
persistent +
exfoliating +
lobed;truncate;lobed;truncate;rounded +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
white-glaucous +
ovate;more or less orbiculate +
coriaceous +
2cm;4cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
deltate +  and scale-like +
Sticky whiteleaf manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
Calif. +  and Oreg. +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
undifferentiated +
fusiform +
stonelike +
indehiscent +
glabrous or +  and sparsely densely glandular-hairy +
depressed-globose +
multicellular +
ascending +  and pendent +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
parietal +, axile +  and placentation +
glandular-hairy +  and glabrous +
tenuinucellate +  and unitegmic +
glandular-hairy +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
reduced +
not sticky +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
4-5-carpellate +
Bull. Calif. Acad. Sci. +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
Illustrated +  and Endemic +
prostrate +  and erect +
peltate +  and capitate +
distinct +
straight +
glandular-hairy +, viscid-glandular +, puberulent +, glabrous +  and scabrous +
smooth-papillate +
Undefined tribe Arbuteae +
Arctostaphylos viscida +
Arctostaphylos +
species +
glandular-hairy +, short-hairy +  and glabrous +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +