Arctous rubra

(Rehder & E. H. Wilson) Nakai

Trees Shrubs Japan, 156. 1922 (as ruber) ,.

Common names: Red bearberry or manzanita busserole rouge
Basionyms: Arctous alpina var. rubra Rehder & E. H. Wilson in C. S. Sargent, Pl. Wilson. 1: 556. 1913 (as alpinus var. ruber)
Synonyms: Arctostaphylos alpina subsp. rubra (Rehder & E. H. Wilson) Hultén Arctostaphylos alpina var. rubra (Rehder & Wilson) Bean Arctostaphylos rubra Small Arctous erythrocarpa
Treatment appears in FNA Volume 8. Treatment on page 405.

Shrubs 3–20 (–30) cm; twigs terete, without old leaves. Leaves: petiole winged, 1–4 (–5) mm, glabrous; blade ovate, obovate, or oblanceolate, (10–) 15–30 (–60) × 10–20 (–30) mm, base attenuate-cuneate, decurrent onto petiole, apex acute, obtuse, or rounded, surfaces not or slightly rugose, glabrous. Inflorescences 2–5-flowered; bracts broadly ovate, (5–7 mm), membranous, (margins densely ciliate). Pedicels 0.6 mm. Flowers: sepals pale green or yellow, 0.8–1.2 mm, apex acute; corolla whitish to cream, urceolate, 3.5–4.5 mm, lobes spreading, whitish to cream, ovate, 1 mm, glabrous except for hairs on adaxial surface; stamens 1.5–2 mm; anthers reddish, becoming yellow, 0.6–0.7 mm, horns 0.2–0.3 mm. Fruits brick-red or scarlet, 6–10 (–12) mm diam. Pyrenes 2.5–3 × 1.6–2.2 mm. 2n = 26.


Phenology: Flowering summer.
Habitat: Rocky and gravelly, arctic or alpine tundra, often in calcareous soils, coastal limestone heaths, swampy woods
Elevation: 0-2500 m

Distribution

V8 765-distribution-map.gif

Alta., B.C., Man., Nfld. and Labr. (Nfld.), N.W.T., Nunavut, Ont., Que., Sask., Yukon, Alaska, Wyo., e Asia

Discussion

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

... more about "Arctous rubra"
yellow +  and reddish +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Acute (?) +, Rounded (?) +  and Obtuse (?) +
Gordon C. Tucker +
(Rehder & E. H. Wilson) Nakai +
not furrowed +
exfoliating +
decurrent;attenuate-cuneate +
Arctous alpina var. rubra +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
oblanceolate;obovate;oblanceolate;obovate;ovate +
subcoriaceous +
10mm;20mm +
membranous +
Red bearberry or manzanita +  and busserole rouge +
whitish +  and cream +
rotate to crateriform campanulate cylindric globose or urceolate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Alta. +, B.C. +, Man. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, Nunavut +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +, Wyo. +  and e Asia +
scarlet +, brick-red +  and black-purple +
globose +
0-2500 m +
undifferentiated +
fusiform +
stonelike +
scarlet +  and brick-red +
indehiscent +
Rocky and gravelly, arctic or alpine tundra, often in calcareous soils, coastal limestone heaths, swampy woods +
multicellular +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
opposite +, whorled +  and alternate +
deciduous +
whitish +  and cream +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
0.6 cm6 mm <br />0.006 m <br /> (?) +
reduced +
not sticky +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering summer. +
4-5-carpellate +
Trees Shrubs Japan, +
2.5mm;3mm +
1.6mm;2.2mm +
distinct +
not angled +
yellow +  and pale green +
persistent +
distinct +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
prostrate +  and erect +
peltate +  and capitate +
straight +
Arctostaphylos alpina subsp. rubra +, Arctostaphylos alpina var. rubra +, Arctostaphylos rubra +  and Arctous erythrocarpa +
Arctous rubra +
species +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +