Helenium apterum

Helenium apterum
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Helenieae
Genus: Helenium
Species: H. aptera
Binomial name
Helenium aptera
(S.F.Blake) Bierner 1972
Synonyms[1][2]
  • Hecubaea aptera S.F.Blake 1924

Helenium aptera is a North American perennial plant in the Sunflower Family. It has been found only in the State of Durango in northwestern Mexico.[3][4] Turner, B. L. 2013. The comps of Mexico. A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100

Helenium aptera is an perennial herb up to 100 cm (40 inches) tall with thick rootstocks producing only one stem with a single flower head. Leaves at the base can be up to 30 cm (1 foot) long, the leaves higher on the stem much smaller. The head is about 4 cm (1.6 inches) across, with a hemispherical yellow disc surrounded by about 14 yellow ray flowers.[3]

References

  1. ↑ The Plant List, Helenium apterum (S.F.Blake) Bierner
  2. ↑ Bierner, Mark William. 1972. Sida 5(1): 47
  3. 1 2 Blake, Sydney Fay. 1924. Contributions from the United States National Herbarium 22(8): 649–650 as Hecubaea aptera
  4. ↑ Tropicos, Hecubaea aptera S.F. Blake
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