Difference between revisions of "Rhododendron austrinum"
in L. H. Bailey, Stand. Cycl. Hort. 6: 3571. 1917 ,.
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|accepted_name=Rhododendron austrinum | |accepted_name=Rhododendron austrinum | ||
− | |accepted_authority=(Small) Rehder | + | |accepted_authority=(Small) Rehder |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in L. H. Bailey, Stand. Cycl. Hort. | |title=in L. H. Bailey, Stand. Cycl. Hort. | ||
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|common_names=Florida azalea | |common_names=Florida azalea | ||
+ | |special_status={{Treatment/ID/Special_status | ||
+ | |code=E | ||
+ | |label=Endemic | ||
+ | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Azalea austrina | |name=Azalea austrina | ||
|authority=Small | |authority=Small | ||
+ | |rank=species | ||
|publication_title=Fl. S.E. U.S. ed. | |publication_title=Fl. S.E. U.S. ed. | ||
|publication_place=2, 1356. 1913 | |publication_place=2, 1356. 1913 | ||
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name=Rhododendron austrinum | name=Rhododendron austrinum | ||
− | + | |authority=(Small) Rehder | |
− | |authority=(Small) Rehder | ||
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|publication title=in L. H. Bailey, Stand. Cycl. Hort. | |publication title=in L. H. Bailey, Stand. Cycl. Hort. | ||
|publication year= | |publication year= | ||
− | |special status= | + | |special status=Endemic |
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V8/V8_912.xml |
|subfamily=Ericaceae subfam. Ericoideae | |subfamily=Ericaceae subfam. Ericoideae | ||
|genus=Rhododendron | |genus=Rhododendron |
Latest revision as of 23:47, 5 November 2020
Shrubs or trees, to 3(–5) m, usually not rhizomatous. Stems: bark smooth to vertically furrowed, shredding; twigs conspicuously multicellular stipitate-glandular-hairy, otherwise ± moderately to densely unicellular-hairy. Leaves deciduous; petiole multicellular stipitate-glandular-hairy and unicellular-hairy; blade ovate to obovate, 3–11 × 1.5–4.5 cm, thin, membranous, margins entire, plane, ciliate, eglandular- and stipitate-glandular-hairy, apex acute to obtuse, often mucronate, abaxial surface ± moderately unicellular-hairy, adaxial surface sparsely scattered stipitate-glandular-hairy, otherwise ± moderately unicellular-hairy, rarely glabrescent. Floral bud scales densely to moderately unicellular-hairy abaxially, margins unicellular-ciliate, also partly glandular-serrate. Inflorescences 9–24-flowered; bracts similar to bud scales. Pedicels 5–17 mm, stipitate-glandular-hairy, otherwise ± densely unicellular-hairy. Flowers opening before or with leaves, erect to horizontal, slightly or not fragrant; calyx lobes 0.5–2.5 mm, scattered stipitate-glandular-hairy, otherwise unicellular-hairy, margins long stipitate-glandular-hairy; corolla yellow to orange, with usually red or orange-red tube, with indistinct, darker yellow, orange, or red blotch on upper lobe, funnelform, 25–45 mm, scattered stipitate-glandular-hairy, otherwise ± moderately unicellular-hairy on outer surface, petals connate, lobes 9–20 mm, tube ± gradually expanded into lobes, 15–25 mm (longer than lobes); stamens 5, much exserted, ± unequal, 52–77 mm. Capsules borne on erect pedicels, 14–26 × 3–5.5 mm, sparsely to densely stipitate-glandular-hairy, otherwise moderately to densely unicellular-hairy. Seeds without distinct tails, flattened portion of testa well developed at each end; testa expanded, dorsiventrally flattened, ± loose. 2n = 26.
Phenology: Flowering spring.
Habitat: Wooded slopes, bluffs or lowlands along streams
Elevation: 0-100 m
Distribution
![V8 912-distribution-map.gif](/w/images/8/8b/V8_912-distribution-map.gif)
Ala., Fla., Ga., Miss.
Discussion
Rhododendron austrinum is most closely related to R. luteum Sweet of eastern Europe, Turkey, and the Caucasus region and to R. occidentale (K. A. Kron 1993).
Selected References
None.