Arctostaphylos morroensis |
Arctostaphylos purissima |
|
---|---|---|
Morro manzanita |
La Purisima manzanita, La Purissima manzanita |
|
Habit | Shrubs, erect or mound-forming, 1–4 m; burl absent; bark on older stems persistent, gray, shredded; twigs short-hairy with long, white hairs. | Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer 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. |
petiole to 2 mm; blade bright green, shiny, orbiculate-ovate to ± orbiculate, 1–2.5 × 1–2 cm, base auriculate-clasping, margins entire, plane, surfaces 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. |
racemes, simple or 1–2-branched; immature inflorescence pendent, (branches dense, concealed by bracts), axis 0.5–1 cm, 1+ mm diam., densely short-hairy with longer hairs; bracts not appressed, (overlapping), leaflike, ovate to lanceolate-ovate, 5–8 mm, apex acute, surfaces glabrous. |
Pedicels | 4–6 mm, hairy or glabrous. |
3–5 mm, sparsely hairy or glabrous. |
Flowers | corolla white, urceolate; ovary densely white-hairy. |
corolla white, conic to urceolate; ovary glabrous. |
Fruits | depressed-globose, 7–10 mm diam., sparsely hairy. |
depressed-globose, 5–8 mm diam., glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos morroensis |
Arctostaphylos purissima |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Maritime chaparral on sandy soils near coast | Maritime chaparral on deep, sandy soils |
Elevation | 0-100 m (0-300 ft) | 0-100 m (0-300 ft) |
Distribution |
CA
|
CA
|
Discussion | Of conservation concern. Arctostaphylos morroensis is known from the Morro Bay region in San Luis Obispo County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Arctostaphylos purissima is known from hills and mesas near the coast (Burton Mesa) in Santa Barbara County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 432. | FNA vol. 8, p. 434. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Name authority | Wieslander & B. Schreiber: Madroño 5: 42, fig. 2a. 1939 , | P. V. Wells: Madroño 19: 195. 1968 , |
Web links |