Difference between revisions of "Pterocaulon virgatum"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 454. 1836.
Common names: Wand blackroot
Illustrated
Basionym: Gnaphalium virgatum Linnaeus Syst. Nat. ed. 10, 2: 1211. 1759
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{{Treatment/ID | {{Treatment/ID | ||
|accepted_name=Pterocaulon virgatum | |accepted_name=Pterocaulon virgatum | ||
| − | |accepted_authority=(Linnaeus) | + | |accepted_authority=(Linnaeus) de Candolle |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | |title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | ||
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}} | }} | ||
|common_names=Wand blackroot | |common_names=Wand blackroot | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Gnaphalium virgatum | |name=Gnaphalium virgatum | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Pterocaulon virgatum | name=Pterocaulon virgatum | ||
| − | |authority=(Linnaeus) | + | |authority=(Linnaeus) de Candolle |
|rank=species | |rank=species | ||
|parent rank=genus | |parent rank=genus | ||
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|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | |publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. | ||
|publication year=1836 | |publication year=1836 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_800.xml |
|tribe=Asteraceae tribe Plucheeae | |tribe=Asteraceae tribe Plucheeae | ||
|genus=Pterocaulon | |genus=Pterocaulon | ||
Latest revision as of 20:56, 5 November 2020
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
La., Tex., Mexico (Tamaulipas), West Indies, Central America, South America.
Discussion
Selected References
None.
Lower Taxa
None.