Difference between revisions of "Cotoneaster horizontalis"
Ann. Gén. Hort. 22: 168. 1877.
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name=Cotoneaster horizontalis | name=Cotoneaster horizontalis | ||
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|publication title=Ann. Gén. Hort. | |publication title=Ann. Gén. Hort. | ||
|publication year=1877 | |publication year=1877 | ||
| − | |special status= | + | |special status=Illustrated;Introduced |
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V9/V9_778.xml |
|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Gillenieae | |tribe=Rosaceae tribe Gillenieae | ||
Revision as of 23:43, 16 December 2019
Shrubs, 0.5–1 m. Stems ascending to erect, spreading horizontally; branches distichous, maroon, initially densely yellow-strigose. Leaves deciduous (tardily so on a few vigorous shoots); petiole 2–3 mm, strigose; blade elliptic or broadly elliptic, on vigorous shoots usually broadly elliptic, sometimes suborbiculate, orbiculate, or broadly obovate, 4–14 × 5–9 mm, subcoriaceous, base obtuse or cuneate, margins flat, veins 2–4, superficial, apex acute, apiculate or obtuse, mucronulate, abaxial surfaces green, sparsely long-strigose, adaxial dark green, shiny, not glaucous, flat between lateral veins, smooth to slightly rugose, glabrescent; fall leaves orange to rich red. Inflorescences on fertile shoots 8–20 mm with 3 or 4 leaves, 1–3-flowered, compact. Pedicels 1–2 mm, strigose. Flowers 5–7 mm, closed; hypanthium funnelform, sparsely pilose-strigose; sepals: margins villous, apex acute or acuminate, surfaces sparsely strigose; petals erect-incurved, dark pink to dark red, base blackish red, margins pale crimson; stamens (8–)10(–14), filaments dark red, anthers white; styles 2 or 3(or 4). Pomes bright red, usually broadly obovoid, sometimes obovoid, rarely subglobose, 5–8.5 × 4.5–7.7 mm, shiny, not glaucous, glabrate; sepals suberect, sparsely strigose or glabrate; navel open; style remnants 1/2–3/4 from base. Pyrenes 2 or 3(or 4), distinct. 2n = 68 (Germany).
Phenology: Flowering Apr–May; fruiting Sep–Mar.
Habitat: Thickets, disturbed forests, paths, cliffs, pilings, rockwork
Elevation: 0–500 m
Distribution
B.C., Calif., Oreg., Wash., Asia (China), introduced also in Europe.
Discussion
L. Lingdi and A. R. Brach (2003) included within Cotoneaster horizontalis several taxa recognized here as distinct species, including C. flinckii J. Fryer & B. Hylmö and C. perpusillus (C. K. Schneider) Flinck & B. Hylmö. Reports of C. horizontalis from Ontario (J. K. Morton and J. M. Venn 1990) are here referred to C. divaricatus. Reports of C. horizontalis from Indiana are not supported by specimens.
Selected References
None.