Difference between revisions of "Helenium brevifolium"
Amer. Bot. Fl., 182. 1870.
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|common_names=Shortleaf sneezeweed | |common_names=Shortleaf sneezeweed | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Leptopoda brevifolia | |name=Leptopoda brevifolia | ||
|authority=Nuttall | |authority=Nuttall | ||
| + | |publication_title=Trans. Amer. Philos. Soc., n. s. | ||
| + | |publication_place=7: 373. 1841 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|publication year=1870 | |publication year=1870 | ||
|special status= | |special status= | ||
| − | |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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_1075.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | ||
Revision as of 18:45, 24 September 2019
Perennials, 20–100 cm. Stems usually 1, unbranched or sparingly branched distally, weakly to moderately winged, glabrous proximally, sparsely to moderately hairy distally. Leaves glabrous or sparsely hairy; basal blades oblanceolate to spatulate, entire or undulate to undulate-serrate; proximal and mid blades oblanceolate to lanceolate, usually entire, sometimes undulate to undulate-serrate; distal blades lance-linear, entire. Heads 1–10 per plant, borne singly or in paniculiform to corymbiform arrays. Peduncles (3–)6–11(–15) cm, sparsely to moderately hairy. Involucres hemispheric to globoid, 10–15 × 10–20 mm. Phyllaries (connate proximally) sparsely to moderately hairy. Ray florets 9–24, neuter; corollas yellow, 12.5–21 × 4–8 mm. Disc florets 200–500(–800+); corollas yellow proximally, usually purple to yellow or yellow-brown distally, 4–5.6 mm, lobes 5. Cypselae 1–1.4 mm, sparsely to moderately hairy; pappi of 6–8 entire, non-aristate scales 1–1.7 mm. 2n = 26, 28.
Phenology: Flowering Mar–May.
Habitat: Ditches, fields, other moist areas such as wet woods, bogs, and swamp edges
Elevation: 0–80 m
Distribution
Ala., Fla., Ga., La., Miss., N.C., Va.
Discussion
Selected References
None.