Opuntia tomentosa

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Opuntia tomentosa
Opuntia tomentosa

Opuntia tomentosa

Systematics
Order : Clove-like (Caryophyllales)
Family : Cactus family (Cactaceae)
Subfamily : Opuntioideae
Tribe : Opuntieae
Genre : Opuntia ( Opuntia )
Type : Opuntia tomentosa
Scientific name
Opuntia tomentosa
Salm-Dyck

Opuntia tomentosa is a species of the genus of Opuntia ( Opuntia ) in the family of cactus (Cactaceae). The specific epithet tomentosa means 'felty'. Spanish common names are "Nopal de San Gabriel" and "Nopal Chamacuerito".

description

The plants can reach a height of 5 meters. The plant body grows with oval, flat branches and thus acquires a branched, tree-like structure. These parts of the shoot are often called "leaves" or "ears". Older shoot members cork, giving the plant its tree-like appearance. The areoles , which are typical of cacti and are covered with yellow glochids , are formed on the individual shoot parts .

The flowers appear terminally on the sprouts and are yellow, orange or red. After successful pollination, egg-shaped fruits are formed. These are thornless and red; they can grow up to 5 cm long and 4 cm in diameter.

Distribution, systematics and endangerment

The homeland of Opuntia tomentosa extends over the Mexican states of San Luis Potosí and Hidalgo and extends as far as Guatemala .

The first description by the German amateur botanist Joseph zu Salm-Reifferscheidt-Dyck was published in 1822. Several synonyms are known:

  • Opuntia hernandezii DC.
  • Opuntia icterica Griffiths
  • Opuntia macdougaliana rose
  • Opuntia oblongata Wendland
  • Opuntia sarca Griffiths ex Scheinvar
  • Opuntia tomentosa var. Hernandezii (DC.) Bravo
  • Opuntia tomentosa var. Herrerae Scheinvar
  • Opuntia velutina var. Macdougaliana (Rose) Bravo

In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered. The development of the populations is considered stable.

Individual evidence

  1. ^ Opuntia tomentosa in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
  2. ↑ Observ. bot. Horto Dyck 3: 8. 1822; see entry at GRIN Taxonomy for Plants .
  3. ↑ Opuntia tomentosa in the IUCN Red List of Threatened Species 2014.3. Posted by: Gómez-Hinostrosa, C. & Arias, S., 2013. Retrieved January 12, 2015.

literature

  • Urs Eggli: The large cactus lexicon , German edition, Eugen Ulmer Verlag, Stuttgart, 2005, ISBN 3-8001-4573-1 .

Web links

Commons : Opuntia tomentosa  - album with pictures, videos and audio files