Copiapoa hypogaea

Copiapoa hypogaea, the underground copiapoa, is a species of flowering plant in the genus Copiapoa in the cactus family (Cactaceae), native to northern Chile.[2] It has gained the Royal Horticultural Society's Award of Garden Merit.[3]

Copiapoa hypogaea
In bloom
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Copiapoa
Species:
C. hypogaea
Binomial name
Copiapoa hypogaea
Synonyms[2]
List
    • Copiapoa hypogaea var. barquitensis F.Ritter
    • Neochilenia hypogaea Backeb.
    • Pilocopiapoa hypogaea (F.Ritter) Y.Itô

Description

Copiapoa hypogaea usually grows solitary, occasionally in small groups, rarely protruding above the ground surface, sometimes even completely sunken, with bulbous roots. The individual shoots are depressed spherical. They are grey-brown to greenish in color and 3 to 6.5 centimeters in diameter. The epidermis is conspicuously wrinkled. The 10 to 14 ribs are slightly twisted, notched broadly flat with chin-like projections. The areoles are sunken and lined with white wool. Thorns are mostly absent; sometimes there are from 1 to 6 tiny ones of a blackish color.

The yellow flowers appear at the tip of the shoot and are wide open.

Subspecies

The following subspecies is currently accepted:[2]

  • Copiapoa hypogaea subsp. cobrensis Doweld

References
  1. Cactus (Paris) 15(66): 19 (1960)
  2. "Copiapoa hypogaea F.Ritter". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 14 October 2020.
  3. "Copiapoa hypogaea underground copiapoa". The Royal Horticultural Society. Retrieved 14 October 2020.
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