Arctostaphylos sensitiva |
Arctostaphylos malloryi |
|
---|---|---|
coinleaf manzanita, dwarf manzanita, glossyleaf manzanita |
Balaklala manzanita, Mallory's manzanita |
|
Habit | Shrubs, erect or mound-forming, 1–2 m; burl absent; bark on older stems red, smooth; twigs densely short-haired with longer gland-tipped hairs. | Shrubs, erect or mound-forming, 1–3 m; burl absent; twigs sparsely short-hairy, viscid glandular-hairy. |
Leaves | bifacial in stomatal distribution; petiole 1–3 mm; blade light green abaxially, dark green adaxially, shiny, orbiculate to orbiculate-ovate, 1–2.2 × 0.8–1.8 cm, base truncate to ± lobed, margins entire, cupped, surfaces smooth, glabrous, midvein 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, 4–8-branched; immature inflorescence pendent, branches spreading, axis 0.5–1 cm, to 1 mm diam., densely short-hairy with longer gland-tipped hairs; bracts appressed, scalelike, deltate, 0.5–2 mm, apex acute, surfaces glabrous. |
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 | 3–5 mm, glabrous. |
6–9 mm, finely glandular-hairy. |
Flowers | 4-merous; corolla white to pink, urceolate; ovary white-hairy. |
corolla white, conic to urceolate; ovary densely white-hairy. |
Fruits | subcylindric, 3–4 mm diam., glabrous. |
depressed-globose, 7–9 mm diam., hairy or glabrous. |
Stones | distinct (breaking apart in mature fruit). |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos sensitiva |
Arctostaphylos malloryi |
|
Phenology | Flowering winter–early spring. | Flowering winter–late spring. |
Habitat | Sandstone uplands in maritime chaparral or closed-cone conifer forests near coast | Chaparral, open forests |
Elevation | 100-600 m (300-2000 ft) | 200-1200 m (700-3900 ft) |
Distribution |
CA
|
CA |
Discussion | Of conservation concern. Arctostaphylos sensitiva occurs in Marin, San Mateo, and Santa Cruz counties. (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. 418. | FNA vol. 8, p. 430. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Synonyms | A. nummularia subsp. sensitiva, A. nummularia var. sensitiva | A. canescens subsp. malloryi |
Name authority | Jepson: Madroño 1: 85. 1922 , | (W. Knight & Gankin) P. V. Wells: Four Seasons 9(2): 54. 1992 , |
Web links |