Marshallia grandiflora

Marshallia grandiflora
1913 illustration[1]

Imperiled  (NatureServe)[2]
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Genus: Marshallia
Species: M. grandiflora
Binomial name
Marshallia grandiflora

Marshallia grandiflora, the Monongahela Barbara's buttons, is a species of flowering plant in the genus Marshallia within the sunflower family. It is endemic to the central Appalachia region in the Eastern United States from southwestern Pennsylvania to eastern Tennessee.[3][4]

It is found primarily along gravelly and sandy bars along high-gradient rivers. Due to this restricted habitat, it is considered globally rare. The largest population occurs along the Gauley River in West Virginia.

Marshallia grandiflora is an herb up to 90 cm (3 feet) tall. Most of the leaves are clustered around the base of the stem. One plant will produce one or two heads, each head containing pink disc flowers but no ray flowers.[5]

References

  1. ↑ Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 3: 503.
  2. ↑ Marshallia grandiflora NatureServe
  3. ↑ United States Department of Agriculture plants profile map, accessed 12.1.2011
  4. ↑ Biota of North America Program 2014 county distribution map
  5. ↑ Flora of North America, Marshallia grandiflora Beadle & F. E. Boynton, 1901.


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