Arctostaphylos hookeri

G. Don

Gen. Hist. 3: 836. 1834 ,.

Common names: Hooker’s manzanita
Endemic
Treatment appears in FNA Volume 8. Treatment on page 417. Mentioned on page 411.

Shrubs, prostrate or erect, mat or mound-forming, 0.1–1.5 m; burl absent; bark on older stems persistent, reddish, smooth; twigs sparsely short-hairy. Leaves: petiole 1–8 mm; blade bright green, shiny, narrow-elliptic (rhombic) or lanceolate-elliptic to widely elliptic, 0.8–3 × 0.4–1.5 cm, base rounded to cuneate, margins entire, plane, surfaces smooth, ± puberulent, glabrescent. Inflorescences racemes, simple or 1-branched; immature inflorescence pendent (crook-necked), axis 0.3–1 cm, 1+ mm diam., sparsely short-hairy; bracts not appressed, (weakly spreading), (congested), (dark green), scalelike, deltate, (globose, cuplike), 2–5 mm, apex acute, surfaces glabrous. Pedicels 2–6 mm, glabrous. Flowers: corolla white, urceolate; ovary glabrous. Fruits globose, 3–6 mm diam., glabrous. Stones distinct. 2n = 26.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Plants erect or mound-forming; leaf blades ± elliptic, 2-3 × 1-1.5 cm; petioles 4-8 mm; Monterey Bay area. Arctostaphylos hookeri subsp. hookeri
1 Plants prostrate, mat-forming; leaf blades narrow-elliptic (diamond-shaped), 0.8-1.2 × 0.4-0.7 cm; petioles 1-3 mm; San Luis Obispo County. Arctostaphylos hookeri subsp. hearstiorum

"entire" is not a number.

... more about "Arctostaphylos hookeri"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
G. Don +
short-hairy +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not furrowed +
persistent +
exfoliating +
rounded;cuneate +
elliptic +, lanceolate-elliptic +  and narrow-elliptic +
bright green +
0.8 cm8 mm <br />0.008 m <br /> (3 cm30 mm <br />0.03 m <br />) +
ovate;elliptic +
coriaceous +
0.4cm;1.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
deltate +  and scale-like +
Hooker’s manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
undifferentiated +
fusiform +
stonelike +
indehiscent +
globose +
multicellular +
1-branched +  and simple +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
mound-forming +
10 cm100 mm <br />0.1 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
reduced +
not sticky +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
4-5-carpellate +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
persistent +
prostrate +  and erect +
peltate +  and capitate +
distinct +
straight +
glabrous +, glabrescent +  and puberulent +
Undefined tribe Arbuteae +
Arctostaphylos hookeri +
Arctostaphylos +
species +
short-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +
erect +  and prostrate +