Arctostaphylos otayensis

Wieslander & B. Schreiber

Madroño 5: 43, fig. 2d. 1939 ,.

Common names: Otay manzanita
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 426. Mentioned on page 414.

Shrubs, erect or mound-forming, 1–3 m; burl absent; twigs sparsely short-hairy, glandular-hairy. Leaves erect; petiole 5–8 mm; blade gray-glaucous, dull, narrowly elliptic or oblongelliptic to ovate, 2–3 × 1–2 cm, base rounded or truncate, margins entire, plane, surfaces smooth, finely appressed-tomentose, ± glabrescent. Inflorescences panicles, 4–7-branched; immature inflorescence branches ascending to erect, axis 1.5–2.5 cm, 1+ mm diam., sparsely short-glandular-hairy; bracts not appressed, (spreading), leaflike, linear-lanceolate, 6–12 mm, apex acuminate, surfaces finely glandular-hairy. Pedicels 3–8 mm, finely glandular-hairy. Flowers: corolla white, conic to urceolate; ovary densely white-hairy, sparsely glandular. Fruits globose, 6–8 mm diam., sparsely hairy or glabrous. Stones partially distinct or connate. 2n = 26.


Phenology: Flowering winter–early spring.
Habitat: Chaparral
Elevation: 100-1200 m

Discussion

Of conservation concern.

Arctostaphylos otayensis is found in the mountains of southern San Diego County (e.g., Guatay, Jamul, Otay), near the border with Baja California. It has been reported from southern Riverside County and northern Baja California as well; those localities need to be confirmed.

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

... more about "Arctostaphylos otayensis"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Wieslander & B. Schreiber +
short-glandular-hairy +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not furrowed +
gray +  and reddish +
persistent +
exfoliating +
rounded +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
gray-glaucous +
oblongelliptic;ovate +
coriaceous +
1cm;2cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
linear-lanceolate +
Otay manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
100-1200 m +
undifferentiated +
fusiform +
stonelike +
indehiscent +
glabrous +  and hairy +
globose +
Chaparral +
multicellular +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
parietal +, axile +  and placentation +
white-hairy +
tenuinucellate +  and unitegmic +
glandular-hairy +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
reduced +
not sticky +
0.5 cm5 mm <br />0.005 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 +
connate +  and distinct +
straight +
glandular-hairy +, glabrescent +  and appressed-tomentose +
Undefined tribe Arbuteae +
Arctostaphylos otayensis +
Arctostaphylos +
species +
glandular-hairy +  and short-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
shrub +  and mound-forming +
heterotrophic +, autotrophic +  and mycotrophic +