Arctostaphylos montana subsp. montana

Common names: Mount Tamalpais manzanita
Treatment appears in FNA Volume 8. Treatment on page 436.

Shrubs mound-forming or erect, 0.5–2 m; young twigs densely white-tomentose. Leaf-blades orbiculate-elliptic to elliptic, 1–2.5 × 1–1.5 cm. Fruits 6–8 mm diam. 2n = 52.


Phenology: Flowering late spring.
Habitat: Chaparral on upland serpentine barrens
Elevation: 300-800 m

Discussion

Subspecies montana is found on and around Mount Tamalpais, Marin County.

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Eastwood +
short-hairy +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not furrowed +
gray +  and reddish +
persistent +
exfoliating +
rounded;cuneate +
orbiculate-elliptic to elliptic +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
ovate;elliptic +
coriaceous +
1cm;1.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
ovate +  and scale-like +
Mount Tamalpais manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
300-800 m +
undifferentiated +
fusiform +
stonelike +
indehiscent +
globose +
Chaparral on upland serpentine barrens +
multicellular +
orbiculate-elliptic +  and elliptic +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
reduced +
not sticky +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Flowering late spring. +
4-5-carpellate +
Proc. Calif. Acad. Sci., ser. +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
prostrate +  and erect +
peltate +  and capitate +
distinct +
straight +
glabrous +, glabrescent +  and puberulent +
Arctostaphylos hookeri subsp. montana +  and Arctostaphylos pungens var. montana +
Arctostaphylos montana subsp. montana +
Arctostaphylos montana +
subspecies +
white-tomentose +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
shrub +  and mound-forming +
heterotrophic +, autotrophic +  and mycotrophic +