Pterocaulon_virgatum

<i>Pterocaulon virgatum</i>

Pterocaulon virgatum

Species of plant

Pterocaulon virgatum, common name wand blackroot,[3] is a plant species widespread in Latin America and in the West Indies. In the contiguous United States, it has been reported only from Texas and Louisiana.[4][5] It grows in marshy areas, ditches, sandy loam, etc.[6][7]

Quick Facts Pterocaulon virgatum, Scientific classification ...

Pterocaulon virgatum is a perennial herb up to 150 cm (60 inches) tall. Leaves are alternate, narrowly linear, green above, white with dense woolly hairs below. Flower heads are arranged in spikes at the ends of branches. There are no ray flowers, only 25-50 yellow disc flowers per head.[6][8]

References

  1. [1]
    Tropicos
  2. [2]
    The Plant List
  3. [3]
    USDA, NRCS (n.d.). "Pterocaulon virgatum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 15 October 2015.
  4. [4]
    Louisiana Department of Wildlife and Fisheries
  5. [5]
    Texas A&M University, Oak Trust, Department of Biology
  6. [6]
    Flora of North America v 19 p 477.
  7. [7]
    Cabrera, A. L. and A. M. Ragonese. 1978. Revisión del género Pterocaulon (Compositae). Darwiniana 21: 185–257.
  8. [8]
    Candolle, Augustin Pyramus de. Prodromus Systematis Naturalis Regni Vegetabilis 5: 454. 1836.


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