Difference between revisions of "Pyracantha koidzumii"
J. Arnold Arbor. 1: 261. 1920.
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|elevation=0–1500 m | |elevation=0–1500 m | ||
|distribution=Ala.;Ariz.;Ark.;Calif.;Fla.;Ga.;La.;Miss.;Okla.;S.C.;Tex.;e Asia (Taiwan);introduced also in Pacific Islands (Hawaii);Australia. | |distribution=Ala.;Ariz.;Ark.;Calif.;Fla.;Ga.;La.;Miss.;Okla.;S.C.;Tex.;e Asia (Taiwan);introduced also in Pacific Islands (Hawaii);Australia. | ||
| + | |introduced=true | ||
|discussion=<p>Occasional specimens of <i>Pyracantha fortuneana</i> with sparsely toothed leaf margins can be difficult to distinguish from <i>P. koidzumii</i>, and some plants in California may be of hybrid origin or represent escapes of horticultural selections.</p> | |discussion=<p>Occasional specimens of <i>Pyracantha fortuneana</i> with sparsely toothed leaf margins can be difficult to distinguish from <i>P. koidzumii</i>, and some plants in California may be of hybrid origin or represent escapes of horticultural selections.</p> | ||
|tables= | |tables= | ||
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|publication year=1920 | |publication year=1920 | ||
|special status=Introduced | |special status=Introduced | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V9/V9_797.xml |
|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Gillenieae | |tribe=Rosaceae tribe Gillenieae | ||
Revision as of 00:33, 28 May 2020
Plants 5–40 dm. Stems: thorns sparse to abundant; young twigs reddish brown-hairy, glabrescent. Leaves: stipules 3–8 mm; petiole 1–3 mm; blade oblanceolate or narrowly obovate, 2.5–4.5 × 0.5–1.2 cm, base cuneate, margins entire, rarely with minute teeth near apices, apex truncate or retuse, rarely rounded, abaxial surface brown-hairy, becoming glabrate and pale green, not glaucescent, adaxial glabrous. Inflorescences 3–4 cm diam. Pedicels 5–12 mm, sparsely brown-hairy. Flowers 8–10 mm diam.; hypanthium densely hairy; calyx brown- or yellowish brown-puberulent when young, glabrescent, sepals triangular, 1–1.3 mm, apex acute; petals suborbiculate, 3–4 mm, apex slightly emarginate. Pomes orange-red, 4–7 mm diam.; pedicels 5–13 mm.
Phenology: Flowering Feb–May; fruiting Jul–Feb.
Habitat: Disturbed forests, beach bluffs, riparian areas, thickets, roadsides
Elevation: 0–1500 m
Distribution
Introduced; Ala., Ariz., Ark., Calif., Fla., Ga., La., Miss., Okla., S.C., Tex., e Asia (Taiwan), introduced also in Pacific Islands (Hawaii), Australia.
Discussion
Occasional specimens of Pyracantha fortuneana with sparsely toothed leaf margins can be difficult to distinguish from P. koidzumii, and some plants in California may be of hybrid origin or represent escapes of horticultural selections.
Selected References
None.