Arctostaphylos patula |
Arctostaphylos malloryi |
|
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green-leaf manzanita |
Balaklala manzanita, Mallory's manzanita |
|
Habit | Shrubs, erect or mound-forming, 1–3 m; burl usually absent, sometimes flat, obscure; twigs usually densely short-hairy with golden glands on tips of hairs, rarely short white-hairy and eglandular. | Shrubs, erect or mound-forming, 1–3 m; burl absent; twigs sparsely short-hairy, viscid glandular-hairy. |
Leaves | petiole 7–15 mm; blade bright green (lightly gray-green if short-hairy), shiny, widely ovate to orbiculate, 2.5–6 × 1.5–4 cm, base rounded, truncate, or slightly lobed, (not clasping), margins entire, plane, surfaces smooth, glabrous or, rarely, short-hairy. |
petiole 5–10 mm; blade glaucous, dull, orbiculate to ovate, 2–3 × 1.5–2.5 cm, base rounded, truncate, or ± lobed, margins entire, plane, surfaces smooth, gray-canescent or densely white-tomentose, glabrescent. |
Inflorescences | panicles, 2–8-branched; immature inflorescence pendent, branches spreading, axis 1.5–3 cm, 1+ mm diam., hairy with golden glands on tips of hairs or short-hairy and eglandular; bracts appressed with incurved tips, scalelike, deltate, 4–6 mm, apex acuminate, surfaces usually densely tomentose with golden glands on tips of hairs, rarely short white-hairy and eglandular. |
panicles, 2–5-branched; immature inflorescence pendent, branches spreading or ascending, axis 1–2 cm, 1+ mm diam., sparsely short-hairy, viscid glandular-hairy; bracts appressed, scalelike, linear-lanceolate, 3–5 mm, apex acute, surfaces canescent. |
Pedicels | 2–7 mm, glabrous or white-hairy. |
6–9 mm, finely glandular-hairy. |
Flowers | corolla mostly pink, conic to urceolate; ovary glabrous or white-hairy. |
corolla white, conic to urceolate; ovary densely white-hairy. |
Fruits | depressed-globose, sometimes subglobose, 7–10 mm diam., glabrous. |
depressed-globose, 7–9 mm diam., hairy or glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos patula |
Arctostaphylos malloryi |
|
Phenology | Flowering late spring–early summer. | Flowering winter–late spring. |
Habitat | Mountain chaparral and forests | Chaparral, open forests |
Elevation | 400-3000 m (1300-9800 ft) | 200-1200 m (700-3900 ft) |
Distribution |
AZ; CA; CO; MT; NV; OR; UT; WA; Mexico (Baja California)
|
CA |
Discussion | Arctostaphylos patula is abundant and widespread in western North America as a dominant in montane chaparral, pine forest gaps, and high-elevation arid-steppe and canyon-land environments. Populations throughout western North America are characterized by twigs and inflorescence parts covered with relatively short hairs tipped with golden glands. In the central to northern Sierra Nevada, mixed with the widespread form are individuals that are eglandular and have a cover of relatively short, whitish hairs on the stems and inflorescences. Similarly, throughout most of its range, A. patula is nonsprouting after fire, and in areas characterized by winter snow cover it layers and creates broad, low mounds. In much of California, it typically sprouts after fires from obscure and flattened burls, forming circles of erect sprouts. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Arctostaphylos malloryi occurs in disjunct populations on volcanic soils in Colusa, Shasta, and Sonoma counties in the North Coast Ranges. It possibly originated as a hybrid between A. canescens and A. viscida, and merits further study. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 416. | FNA vol. 8, p. 430. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Synonyms | A. acutifolia, A. parryana var. pinetorum, A. patula var. coalescens, A. patula subsp. platyphylla, A. platyphylla | A. canescens subsp. malloryi |
Name authority | Greene: Pittonia 2: 171. 1891 , | (W. Knight & Gankin) P. V. Wells: Four Seasons 9(2): 54. 1992 , |
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