Arctostaphylos virgata

Eastwood

in C. S. Sargent, Trees & Shrubs 1: 203, plate 96. 1905 ,.

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

Shrubs, erect, 1–5 m; burl absent; twigs densely glandular-hairy. Leaves: petiole 2–4 mm; blade bright green, ± shiny, narrowly oblong-ovate to oblong-lanceolate, 3–5 × 1–2.5 cm, base truncate to slightly lobed, margins entire, plane, surfaces papillate, sparsely glandular-hairy. Inflorescences racemes, simple or 1-branched; immature inflorescence pendent, (concealed by bracts), axis 1.5–2 cm, 1+ mm diam., densely glandular-hairy; bracts not appressed, (green), leaflike, linear-lanceolate, 8–20 mm, apex acuminate, surfaces densely glandular-hairy. Pedicels 3–8 mm, finely glandular-hairy. Flowers: corolla white, conic to urceolate; ovary glandular-hairy. Fruits depressed-globose, 6–8 mm diam., finely glandular-hairy, (viscid). Stones distinct. 2n = 26.


Phenology: Flowering early winter–early spring.
Habitat: Maritime chaparral, open, closed-cone conifer forests
Elevation: 0-500 m

Discussion

Of conservation concern.

Arctostaphylos virgata is associated mostly with Pinus muricata on the Point Reyes peninsula; populations are found at nearby sites from Bolinas Ridge, Muir Woods, and San Geronimo Ridge, Marin County.

Selected References

None.

Lower Taxa

None.
... more about "Arctostaphylos virgata"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Eastwood +
Marin manzanita +
0-500 m +
Maritime chaparral, open, closed-cone conifer forests +
Flowering early winter–early spring. +
in C. S. Sargent, Trees & Shrubs +
Endemic +  and Conservation concern +
Undefined tribe Arbuteae +
Arctostaphylos virgata +
Arctostaphylos +
species +