Arctostaphylos silvicola

Jepson & Wieslander

Erythea 8: 101. 1938 ,.

Common names: Bonny Doon manzanita
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 430. Mentioned on page 413.

Shrubs, erect, 1–3 m; burl absent; twigs sparsely to densely soft-hairy. Leaves: petiole 3–8 mm; blade gray, glaucous, dull, narrowly obovate or oblongelliptic, 1.5–3.5 × 1–1.5 cm, base cuneate, margins entire, plane, surfaces smooth, appressed gray-canescent, glabrescent. Inflorescences racemelike, simple or 1–2-branched; immature inflorescence pendent, (branches bell-shaped, framed by bracts), axis 0.5–1 cm, 1+ mm diam., sparsely to densely soft-hairy; bracts not appressed, leaflike, lanceolate, 5–12 mm, apex acute to obtuse, surfaces canescent or glabrous. Pedicels 5–7 mm, usually glabrous, sometimes sparsely hairy. Flowers: corolla white, conic to urceolate; ovary glabrous. Fruits globose, 6–12 mm diam., glabrous. Stones distinct. 2n = 26.


Phenology: Flowering winter–early spring.
Habitat: Chaparral, open conifer forests
Elevation: 100-500 m

Discussion

Of conservation concern.

Arctostaphylos silvicola is known from deep, sandy soils near the coast in chaparral and open conifer forests of the central Santa Cruz Mountains, Santa Cruz County.

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

... more about "Arctostaphylos silvicola"
Acute (?) +  and Obtuse (?) +
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Jepson & Wieslander +
soft-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 +
cuneate +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
oblongelliptic;obovate +
coriaceous +
1cm;1.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
lanceolate +
Bonny Doon manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
100-500 m +
undifferentiated +
fusiform +
stonelike +
indehiscent +
globose +
Chaparral, open conifer forests +
multicellular +
1-2-branched +  and simple +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
hairy +  and glabrous +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
reduced +
not sticky +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering winter–early spring. +
4-5-carpellate +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
Endemic +  and Conservation concern +
prostrate +  and erect +
peltate +  and capitate +
distinct +
straight +
glabrous +, canescent +, glabrescent +  and gray-canescent +
Undefined tribe Arbuteae +
Arctostaphylos silvicola +
Arctostaphylos +
species +
soft-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +