Arctostaphylos morroensis

Wieslander & B. Schreiber

Madroño 5: 42, fig. 2a. 1939 ,.

Common names: Morro manzanita
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 432. Mentioned on page 406, 410.

Shrubs, erect or mound-forming, 1–4 m; burl absent; bark on older stems persistent, gray, shredded; twigs short-hairy with long, white hairs. Leaves bifacial in stomatal distribution; petiole 2–5 mm; blade dull gray abaxially, dark green, ± shiny adaxially, oblong-ovate to oblong-elliptic, 1.5–3 × 1–2 cm, base subcordate to ± truncate (sometimes with vestigial auricles), margins entire, cupped, abaxial surface smooth, densely tomentose, adaxial surface smooth, glabrous. Inflorescences panicles, 2–5-branched; immature inflorescence pendent, (branches congested, bell-shaped, partly framed by bracts), axis 0.5–0.8 cm, 1+ mm diam., short-hairy with long, white hairs; bracts not appressed, leaflike, linear-lanceolate, 5–8 mm, apex acuminate, surfaces puberulent. Pedicels 4–6 mm, hairy or glabrous. Flowers: corolla white, urceolate; ovary densely white-hairy. Fruits depressed-globose, 7–10 mm diam., sparsely hairy. Stones distinct. 2n = 26.


Phenology: Flowering winter–early spring.
Habitat: Maritime chaparral on sandy soils near coast
Elevation: 0-100 m

Discussion

Of conservation concern.

Arctostaphylos morroensis is known from the Morro Bay region in San Luis Obispo County.

Selected References

None.

Lower Taxa

None.
... more about "Arctostaphylos morroensis"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Wieslander & B. Schreiber +
Morro manzanita +
0-100 m +
Maritime chaparral on sandy soils near coast +
Flowering winter–early spring. +
Endemic +  and Conservation concern +
Undefined tribe Arbuteae +
Arctostaphylos morroensis +
Arctostaphylos +
species +