Arctostaphylos stanfordiana subsp. decumbens

(P. V. Wells) P. V. Wells

Four Seasons 9(2): 61. 1992 ,.

Common names: Rincon manzanita
EndemicConservation concern
Basionyms: Arctostaphylos stanfordiana forma decumbens P. V. Wells Madroño 35: 338. 1989,
Treatment appears in FNA Volume 8. Treatment on page 420. Mentioned on page 419.

Plants prostrate to decumbent, mat-forming, 0.1–1 m; twigs sparsely short-hairy. Petioles 4–8 mm, smooth, glabrous. Inflorescences: axis glabrous or sparsely short-hairy; bracts glabrous or sparsely short-hairy.


Phenology: Flowering winter–early spring.
Habitat: Chaparral, clay barrens
Elevation: 100 m

Discussion

Of conservation concern.

Subspecies decumbens is found only at Rincon Ridge, Sonoma County.

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
(P. V. Wells) P. V. Wells +
0mm +  and 1mm +
short-hairy +  and glabrous +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not furrowed +
gray +  and reddish +
persistent +
exfoliating +
cuneate +
Arctostaphylos stanfordiana +
bright green +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
oblanceolate;oblong;oblanceolate;oblong;elliptic +
coriaceous +
1.5cm;2.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
short-hairy +  and glabrous +
ovate +  and deltate +
ascending;erect +
Rincon manzanita +
white +  and pink +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
undifferentiated +
fusiform +
stonelike +
indehiscent +
subglobose +
Chaparral, clay barrens +
multicellular +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
mound-forming +
10 cm100 mm <br />0.1 m <br /> (300 cm3,000 mm <br />3 m <br />) +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
reduced +
not sticky +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering winter–early 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 +
distinct +
straight +
glandular-hairy +, hairy +, glandular-puberulent +, , +  and glabrous +
Undefined tribe Arbuteae +
Arctostaphylos stanfordiana subsp. decumbens +
Arctostaphylos stanfordiana +
subspecies +
short-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
plant +, plants-forming +  and mat-forming +
heterotrophic +, autotrophic +  and mycotrophic +