Arctostaphylos insularis |
Arctostaphylos pajaroensis |
|
---|---|---|
island manzanita |
Pajaro manzanita |
|
Habit | Shrubs, erect, (arborescent), 2–5 m; burl absent; (lower stems reddish with glaucous patches); twigs glabrous, sometimes sparsely short-hairy or sparsely glandular-hairy. | Shrubs, erect or mound-forming, 1–4 m; burl absent; bark on older stems persistent, gray, shredded; twigs short-hairy, sometimes with long hairs. |
Leaves | bifacial in stomatal distribution; petiole 4–8 mm; blade bright green, lustrous, oblong-elliptic, 2.5–4.5 × 1–3 cm, base rounded, margins entire, ± cupped, surfaces smooth, glabrous. |
bifacial in stomatal distribution; petiole to 2 mm; blade light green abaxially, dark blue-green, glaucous adaxially, dull, ovate to triangular-ovate, 2–4 × 1–2 cm, base distinctly lobed, auriculate-clasping, margins (tinged with red), entire, ± cupped, surfaces smooth, glabrous, midvein hairy abaxially. |
Inflorescences | panicles, 5–10-branched; immature inflorescence pendent, branches spreading, ascending, or erect, axis 2–3 cm, 1+ mm diam., glabrous, sometimes sparsely short-hairy or sparsely glandular-hairy, (buds ± spread apart); bracts not appressed, scalelike, deltate, 1.5–3 mm, apex acute, surfaces finely glandular-hairy. |
panicles, 2–5-branched; immature inflorescence pendent, branches spreading, axis 1–1.5 cm, 1+ mm diam., short-hairy, sometimes with long hairs; bracts not appressed, leaflike, linear-lanceolate, 5–10 mm, apex acuminate, surfaces glabrous. |
Pedicels | 6–9 mm, finely glandular-hairy. |
5–8 mm, finely hairy or glabrous. |
Flowers | corolla white, conic to urceolate; ovary glabrous or sparsely glandular-hairy. |
corolla white to pink, urceolate; ovary densely white-hairy. |
Fruits | depressed-globose, 8–15 mm diam., sparsely hairy or glabrous. |
depressed-globose, 6–8 mm diam., sparsely hairy or glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos insularis |
Arctostaphylos pajaroensis |
|
Phenology | Flowering winter–early spring. | Flowering early winter–early spring. |
Habitat | Island chaparral and woodlands | Maritime chaparral on deep to shallow, sandy soils or sandstone outcroppings |
Elevation | 200-400 m (700-1300 ft) | 0-200 m (0-700 ft) |
Distribution |
CA
|
CA
|
Discussion | Of conservation concern. Arctostaphylos insularis is known from Santa Cruz Island. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Arctostaphylos pajaroensis is found in the vicinity of the Pajaro Hills in Monterey County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 422. | FNA vol. 8, p. 432. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Synonyms | A. insularis var. pubescens | A. andersonii var. pajaroensis |
Name authority | Greene ex Parry: Bull. Calif. Acad. Sci. 2: 494. 1887 , | (J. E. Adams) J. E. Adams: J. Elisha Mitchell Sci. Soc. 56: 41. 1940 , |
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