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 Syst. Nat. ed. 10, 2: 1211. 1759
Treatment appears in FNA Volume 19. Treatment on page 477. Mentioned on page 476.
FNA>Volume Importer
FNA>Volume Importer
(No difference)

Revision as of 19:38, 24 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

V19-800-distribution-map.gif

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 +