Difference between revisions of "Helenium microcephalum var. microcephalum"

Treatment appears in FNA Volume 21. Treatment on page 434.
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|accepted_name=Helenium microcephalum var. microcephalum
 
|accepted_name=Helenium microcephalum var. microcephalum
|accepted_authority=unknown
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name=Helenium microcephalum var. microcephalum
 
name=Helenium microcephalum var. microcephalum
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_1087.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_1087.xml
 
|tribe=Asteraceae tribe Heliantheae
 
|tribe=Asteraceae tribe Heliantheae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae
 
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae

Latest revision as of 20:08, 5 November 2020

Plants 30–120 cm. Leaves: proximal and mid blades serrate to undulate-serrate, glabrous or sparsely hairy; distal blades glabrous or sparsely hairy. Heads 20–150(–300+) per plant. Peduncles 1–3.5 cm, projecting terminal heads barely beyond foliage. Involucres 4–8 × 4–8 mm. Ray florets 7–13; corollas yellow, 2.6–4.8 × 1.6–3.9 mm. Disc florets 120–300+; corollas 1.2–1.6 mm, lobes (4–)5. Pappi (0.2–)0.3–0.4(–0.5) mm. 2n = 26.


Phenology: Flowering (Feb–)Jun–Jul(–Nov).
Habitat: Sandy or clay soils, ditches, washes, around ponds and lakes, along streams
Elevation: 0–1500 m

Distribution

V21-1087-distribution-map.gif

Ariz., N.Mex., Okla., Tex., Mexico (Coahuila, Nuevo León, and Tamaulipas).

Discussion

Selected References

None.

Lower Taxa

None.
Mark W. Bierner +
de Candolle +
Ariz. +, N.Mex. +, Okla. +, Tex. +, Mexico (Coahuila +, Nuevo León +  and and Tamaulipas). +
0–1500 m +
Sandy or clay soils, ditches, washes, around ponds and lakes, along streams +
Flowering (Feb–)Jun–Jul(–Nov). +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Compositae +
Helenium microcephalum var. microcephalum +
Helenium microcephalum +
variety +