Arctostaphylos morroensis |
Arctostaphylos franciscana |
|
---|---|---|
Morro manzanita |
Franciscan 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, prostrate or mat-forming, 0.2–1.5 m; burl absent; twigs gray-hairy. |
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 3–5 mm, (eglandular); blade bright green, shiny, oblanceolate, 1.5–2 × 0.5–1 cm, base cuneate, margins entire, plane, surfaces smooth, ± puberulent, glabrescent. |
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. |
panicles, 1–3-branched; immature inflorescence pendent, (branches compact), axis 0.5–1 cm, 1+ mm diam., gray-hairy; bracts appressed, scalelike (basalmost leaflike), awl-shaped, (concave when fresh), 3–4 mm, apex acute, surfaces glabrous. |
Pedicels | 4–6 mm, hairy or glabrous. |
2–6 mm, glabrous. |
Flowers | corolla white, urceolate; ovary densely white-hairy. |
corolla white to pink, urceolate; ovary canescent. |
Fruits | depressed-globose, 7–10 mm diam., sparsely hairy. |
globose, 6–8 mm diam., glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos morroensis |
Arctostaphylos franciscana |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Maritime chaparral on sandy soils near coast | Maritime chaparral, serpentine 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. Formerly found in the northwestern portions of San Francisco, Arctostaphylos franciscana is now extirpated from the wild and survives only in cultivation. Arctostaphylos franciscana is in the Center for Plant Conservation’s National Collection of Endangered Plants as A. hookeri subsp. franciscana. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 432. | FNA vol. 8, p. 425. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Synonyms | A. hookeri subsp. franciscana | |
Name authority | Wieslander & B. Schreiber: Madroño 5: 42, fig. 2a. 1939 , | Eastwood: Bull. Torrey Bot. Club 32: 201. (1905) |
Web links |