Flora of North America species comparison

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Arctostaphylos morroensis

Morro 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.
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.
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.
Pedicels

4–6 mm, hairy or glabrous.
Flowers

corolla white, urceolate;

ovary densely white-hairy.
Fruits

depressed-globose, 7–10 mm diam., sparsely hairy.
Stones

distinct.
2n

= 26.

Arctostaphylos morroensis
Phenology Flowering winter–early spring.
Habitat Maritime chaparral on sandy soils near coast
Elevation 0-100 m (0-300 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
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.)
Source FNA vol. 8, p. 432.
Parent taxa Ericaceae > subfam. Arbutoideae > Arctostaphylos
Sibling taxa
A. andersonii, A. auriculata, A. bakeri, A. canescens, A. catalinae, A. columbiana, A. confertiflora, A. crustacea, A. cruzensis, A. densiflora, A. edmundsii, A. franciscana, A. gabilanensis, A. glandulosa, A. glauca, A. glutinosa, A. hispidula, A. hookeri, A. hooveri, A. imbricata, A. insularis, A. klamathensis, A. luciana, A. malloryi, A. manzanita, A. mewukka, A. montana, A. montaraensis, A. montereyensis, A. myrtifolia, A. nevadensis, A. nissenana, A. nortensis, A. nummularia, A. obispoensis, A. ohloneana, A. osoensis, A. otayensis, A. pacifica, A. pajaroensis, A. pallida, A. parryana, A. patula, A. pechoensis, A. pilosula, A. pringlei, A. pumila, A. pungens, A. purissima, A. rainbowensis, A. refugioensis, A. regismontana, A. rudis, A. sensitiva, A. silvicola, A. stanfordiana, A. tomentosa, A. uva-ursi, A. virgata, A. viridissima, A. viscida
Name authority Wieslander & B. Schreiber: Madroño 5: 42, fig. 2a. 1939 ,
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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