Difference between revisions of "Helenium drummondii"

H. Rock

Rhodora 59: 173. 1957.

Common names: Fringed sneezeweed
Basionym: Leptopoda fimbriatum Torrey & A. Gray Fl. N. Amer. 2: 387. 1842,
Treatment appears in FNA Volume 21. Treatment on page 429. Mentioned on page 427.
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|name=Leptopoda fimbriatum
 
|name=Leptopoda fimbriatum
 
|authority=Torrey & A. Gray
 
|authority=Torrey & A. Gray
 +
|rank=species
 
|publication_title=Fl. N. Amer.
 
|publication_title=Fl. N. Amer.
 
|publication_place=2: 387. 1842,
 
|publication_place=2: 387. 1842,
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Helenium drummondii
 
name=Helenium drummondii
|author=
 
 
|authority=H. Rock
 
|authority=H. Rock
 
|rank=species
 
|rank=species
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|publication year=1957
 
|publication year=1957
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_1070.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_1070.xml
 
|tribe=Asteraceae tribe Heliantheae
 
|tribe=Asteraceae tribe Heliantheae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae

Revision as of 20:32, 16 December 2019

Perennials, 20–60 cm. Stems usually 1, usually unbranched distally, moderately to strongly winged, glabrous proximally, glabrous or sparsely hairy distally. Leaves glabrous; basal blades narrowly obovate to narrowly oblanceolate, usually entire, sometimes undulate-serrate; proximal and mid blades narrowly lanceolate, usually entire, sometimes undulate-serrate; distal blades lance-linear, usually entire, rarely undulate-serrate. Heads 1(–3) per plant, usually borne singly. Peduncles 10–30 cm, sparsely hairy. Involucres hemispheric to globoid, 10–18 × 15–25 mm. Phyllaries sparsely to moderately hairy. Ray florets 13–30, neuter; corollas yellow, 14–25 × 4–10 mm. Disc florets 250–650(–1000+); corollas yellow, 4.3–5.4 mm, lobes 5. Cypselae 1.2–1.5 mm, moderately hairy; pappi of 5–12 deeply lacerate, non-aristate scales 2–3.7 mm. 2n = 32.


Phenology: Flowering (Mar–)Apr(–May).
Habitat: Ditches, other moist areas such as wet woods, bogs, and swamp edges
Elevation: 10–50 m

Discussion

Selected References

None.

Lower Taxa

None.