Arctostaphylos montana subsp. ravenii

(P. V. Wells) V. T. Parker

Madroño 54: 150. 2007,.

Common names: Presidio manzanita
Basionyms: Arctostaphylos hookeri subsp. ravenii P. V. Wells Madroño 19: 200. 1968
Treatment appears in FNA Volume 8. Treatment on page 437. Mentioned on page 436.

Shrubs prostrate, 0.1–0.5 m; young twigs gray-tomentose. Leaf blades orbiculate-elliptic, 1–2.2 × 1–1.5 cm. Fruits 4–5 mm diam. 2n = 52.


Phenology: Flowering early–late spring.
Habitat: Maritime chaparral, coastal prairie on serpentine soils
Elevation: 0-100 m

Discussion

Of conservation concern.

Subspecies ravenii occurs near the coast in San Francisco County. The relationship of this taxon is problematic; only one living individual is known from the wild. It is in the Center for Plant Conservation’s National Collection of Endangered Plants as Arctostaphylos hookeri subsp. ravenii.

Selected References

None.

Lower Taxa

None.

V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
(P. V. Wells) V. T. Parker +
Arctostaphylos hookeri subsp. ravenii +
Presidio manzanita +
0-100 m +
Maritime chaparral, coastal prairie on serpentine soils +
Flowering early–late spring. +
Arctostaphylos hookeri subsp. montana +  and Arctostaphylos pungens var. montana +
Arctostaphylos montana subsp. ravenii +
Arctostaphylos montana +
subspecies +