Difference between revisions of "Pterocaulon virgatum"

(Linnaeus) de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 454. 1836.

Common names: Wand blackroot
Basionym: Gnaphalium virgatum Linnaeus
Treatment appears in FNA Volume 19. Treatment on page 477. Mentioned on page 476.
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V19_800.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V19_800.xml
 
|tribe=Asteraceae tribe Plucheeae
 
|tribe=Asteraceae tribe Plucheeae
 
|genus=Pterocaulon
 
|genus=Pterocaulon

Revision as of 15:15, 18 September 2019

Plants 4–15 dm. Leaf blades linear to narrowly elliptic or linear-lanceolate, 5–10(–15) cm × (2–)5–10(–14) mm, lengths mostly 6–8 times widths, margins entire or minutely denticulate (revolute). Heads in open, interrupted, ± cylindric arrays (5–)8–20 cm (main axes visible between glomerules of heads). Involucres campanulate to cylindric, 4–5 mm. Pistillate florets 25–50. Functionally staminate florets 2–4(–5). Cypselae 1–1.4 mm.


Phenology: Flowering Aug–Oct.
Habitat: Marshy areas, ditches, moist places in woods, in sand, sandy loam, and sandy clay
Elevation: 0–20 m

Distribution

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La., Tex., Mexico (Tamaulipas), West Indies, Central America, South America.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Pterocaulon virgatum"
Guy L. Nesom +
- Linnaeus de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
Gnaphalium virgatum +
Wand blackroot +
La. +, Tex. +, Mexico - Tamaulipas +, West Indies +, Central America +  and South America. +
0–20 m +
Marshy areas, ditches, moist places in woods, in sand, sandy loam, and sandy clay +
Flowering Aug–Oct. +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
Compositae +
Pterocaulon virgatum +
Pterocaulon +
species +