Pterocaulon

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Pterocaulon
Pterocaulon sphacelatum habit.jpg
Pterocaulon sphacelatum
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Subfamily:
Asteroideae
Tribe:
Inuleae[1]
Genus:
Pterocaulon

Elliott
Type species
Conyza pycnostachya
(basionym of
Pterocaulon pycnostachyum)
Michx.
Synonyms[1]
  • Monenteles Labill.
  • Chlaenobolus Cass.

Pterocaulon is a genus of flowering plants in the sunflower family, native to North and South America and to Australasia.[2][3] Blackroot is a common name for species native to North America.[4]

The plants are perennial herbs, frequently densely covered with woolly hairs. The generic name means "winged stem," referring to the decurrent leaf bases that give the appearance of wings running down the sides of the stems.[5][6]

Species[1][7][8]
  • - South America, Puerto Rico, Virgin Islands
  • - Brazil, Argentina, Paraguay, Uruguay
  • - Brazil, Argentina, Paraguay, Uruguay
  • - Brazil, Argentina, Paraguay, Uruguay
  • - Western Australia, Northern Territory
  • - Brazil, Bolivia, Paraguay, Salta
  • - Brazil, Argentina, Paraguay, Uruguay, Bolivia
  • - Western Australia, Northern Territory
  • - Brazil, Argentina, Uruguay
  • - Brazil, Argentina, Paraguay, Uruguay
  • - Mato Grosso, Argentina, Paraguay, Bolivia
  • Pterocaulon pycnostachyum - United States (AL GA FL SC NC)
  • - Indochina, Hainan, Orissa, Philippines, Maluku, New Guinea, eastern Australia
  • - Brazil, Argentina, Paraguay
  • - Western Australia, Northern Territory, South Australia
  • Pterocaulon sphacelatum - Australia
  • - Western Australia, Northern Territory, Queensland
  • - South America
  • - Western Australia, Northern Territory, Queensland
  • Pterocaulon virgatum - Central + South America, West Indies, United States (TX LA)

References[]

  1. ^ Jump up to: a b c Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-30 at archive.today
  2. ^ Elliott, Stephen. Sketch of the Botany of South-Carolina and Georgia 2(4): 323–324. 1824 short descriptions in parallel English and Latin, longer descriptions in English
  3. ^ Tropicos, Pterocaulon Elliott
  4. ^ USDA, NRCS (n.d.). "Pterocaulon". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 15 October 2015.
  5. ^ Flora of North America v 21 p 476, Pterocaulon Elliott
  6. ^ Cabrera, A. L. and A. M. Ragonese. 1978. Revisión del género Pterocaulon (Compositae). Darwiniana 21: 185–257.
  7. ^ The Plant List search for Pterocaulon
  8. ^ Biota of North America Program 2013 county distribution maps


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