Arctostaphylos tomentosa

(Pursh) Lindley

Edwards’s Bot. Reg. 21: plate 1791. 1835 ,.

Common names: Woollyleaf manzanita
Endemic
Basionyms: Arbutus tomentosa Pursh Fl. Amer. Sept. 1: 282. 1813
Treatment appears in FNA Volume 8. Treatment on page 439. Mentioned on page 406, 409.

Shrubs, erect or mound-forming, 1–3 m; burl present; bark of older stems persistent, gray, shredded; twigs usually short-hairy, sometimes with long hairs and glandular-hairs. Leaves bifacial in stomatal distribution; petiole 2–5 mm; blade dark to bright green, dull abaxially, ± shiny adaxially, oblong-ovate to oblong-lanceolate, 2–5 × 1.5–2.5 cm, base truncate to ± lobed, margins entire, sometimes toothed, cupped or ± rolled, (distal portion glabrous, proximal tomentose), surfaces short-hairy or glabrous abaxially, papillate, scabrous, sometimes finely glandular-hairy or ± glabrous adaxially. Inflorescences panicles, 2–8-branched; immature inflorescence pendent, axis 1–2.5 cm, 1+ mm diam., usually short-hairy, sometimes with long hairs and glandular-hairs; bracts not appressed, leaflike, lanceolate, 8–15 mm, apex acute, surfaces glabrous, hairy, or finely glandular-hairy. Pedicels 2–5 mm, sparsely hairy, sometimes glandular, or hairy. Flowers: corolla white, conic to urceolate; ovary white-hairy and sometimes sparsely glandular. Fruits depressed-globose, 6–10 mm diam., sparsely hairy or glabrous. Stones distinct.

Discussion

Subspecies 4 (4 in the flora).

Arctostaphylos tomentosa is found in coastal central California, in areas that receive summer fog. Most subspecies are narrowly distributed.

Selected References

None.

Key

1 Twigs densely glandular-hairy Arctostaphylos tomentosa subsp. bracteosa
1 Twigs eglandular > 2
2 Twigs short-hairy and with long, white hairs. Arctostaphylos tomentosa subsp. daciticola
2 Twigs short-hairy > 3
3 Leaf blades tomentose abaxially (at least younger leaves). Arctostaphylos tomentosa subsp. tomentosa
3 Leaf blades glabrous abaxially. Arctostaphylos tomentosa subsp. hebeclada

"entire" is not a number.

... more about "Arctostaphylos tomentosa"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
(Pursh) Lindley +
short-hairy +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not furrowed +
gray +  and reddish +
persistent +
exfoliating +
truncate;more or less lobed +
Arbutus tomentosa +
dark +  and bright green +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
shiny +  and dull +
oblong-ovate;oblong-lanceolate +
coriaceous +
1.5cm;2.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
lanceolate +
Woollyleaf manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
undifferentiated +
fusiform +
stonelike +
indehiscent +
glabrous +  and hairy +
depressed-globose +
multicellular +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
glabrous +, glandular-hairy +  and short-hairy +
papillate +
parietal +, axile +  and placentation +
white-hairy +
tenuinucellate +  and unitegmic +
hairy +  and glandular +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
reduced +
not sticky +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
4-5-carpellate +
Edwards’s Bot. Reg. +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
prostrate +  and erect +
peltate +  and capitate +
distinct +
straight +
glandular-hairy +, hairy +  and glabrous +
Undefined tribe Arbuteae +
Arctostaphylos tomentosa +
Arctostaphylos +
species +
short-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
shrub +  and mound-forming +
heterotrophic +, autotrophic +  and mycotrophic +