Echinocereus palmeri

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Echinocereus palmeri
Echinocereus palmeri 02.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Echinocereus
Species:
E. palmeri
Binomial name
Echinocereus palmeri
Britton & Rose 1922

Echinocereus palmeri is a species of cactus native to Mexico. [2]

Contents

Description

Echinocereus palmeri can grow either as a single stem or with several side shoots, and it develops a thick, prominent taproot. Its dark green shoots are ovate to cylindrical in shape, tapering toward the tips. These shoots show constrictions caused by annual new growth. They measure 3 to 8 centimeters in length, occasionally up to 15 centimeters, and are 2 to 3 centimeters in diameter. The shoots are not covered by spines. The plant has six to twelve low ribs that are only faintly tubercled. It features one to two, sometimes up to three, slender, ascending central spines that are brown to black and 1 to 2 centimeters long. Additionally, it has eight to sixteen whitish radial spines with darker tips; these lie flat against the shoot surface and are 0.4 to 0.8 centimeters long. The flowers are funnel-shaped, pinkish-lavender to pink, and fragrant. They appear near the tips of the shoots, are up to 6 centimeters long, and can reach a diameter of 6 centimeters, occasionally up to 9 centimeters. The egg-shaped fruits are green and contain white pulp. [3]

Subspecies

There are two recognized subspecies: [2]

ImageScientific nameDistribution
Echinocereus palmeri subsp. mazapil H.M.Hern. & Gómez-Hin.Mexico (Zacatecas)
Echinocereus palmeri Blute.JPG Echinocereus palmeri subsp. palmeriMexico (C. & S. Chihuahua, Durango)

Distribution

Echinocereus palmeri is native to the Mexican states of Chihuahua, Durango and Zacatecas.

Taxonomy

The species was first described by botanists Nathaniel Lord Britton and Joseph Nelson Rose in 1922 from a plant collected near Chihuahua City. [4] The name "palmeri" honors the British botanist and plant collector Edward Palmer. [5]

References

  1. ↑ Hernández, H.M. (2017) [amended version of 2013 assessment]. "Echinocereus palmeri". IUCN Red List of Threatened Species . 2017 e.T152731A121486349. doi: 10.2305/IUCN.UK.2017-3.RLTS.T152731A121486349.en .
  2. 1 2 "Echinocereus palmeri Britton & Rose". Plants of the World Online . Royal Botanic Gardens, Kew. Retrieved 2024-06-29.
  3. ↑ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). p. 201. ISBN   3-8001-4573-1.
  4. ↑ Britton, Nathaniel Lord; Rose, Joseph Nelson (1922). The Cactaceae: Descriptions and Illustrations of Plants of the Cactus Family. Carnegie Institution of Washington. p. 34. Retrieved 2025-11-19.
  5. ↑ Britton, Nathaniel Lord; Eaton, Mary E.; Rose, J. N.; Wood, Helen Adelaide (1919). The Cactaceae : descriptions and illustrations of plants of the cactus family. Washington: Carnegie Institution of Washington. doi:10.5962/bhl.title.46288.
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