Abelia

by | Mar 12, 2018 | Deciduous Shrubs

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

Description

Echinocereus viereckii grows upright or prostrate, branching at the base. Its dull, shiny light green shoots often reach up to 20 cm (7.9 in) in length and 4 to 4.5 cm (1.6 to 1.8 in) in diameter. The apex is loosely covered with white-yellowish areole felt, topped by an upright hyaline-yellow spine. It has 8 to 9 ribs, sharply separated at the apex and running straight down, about 6 to 8 mm (0.24 to 0.31 in) high. These ribs are deeply indented between the areoles, forming mammillary-like humps. The 7 to 9 radial spines spread horizontally, are evenly distributed, and usually 5 to 7 mm (0.20 to 0.28 in) long. The 4 central spines are thickened at the base and can grow up to 2 cm (0.79 in) long.

The funnel-shaped flowers are up to 11 cm (4.3 in) in diameter and are purplish-pink, with a glassy flower tube and light golden brown thorns.[3]


Subspecies

Accepted subspecies:[2]

Image Scientific name Distribution
Echinocereus viereckii subsp. morricalii (Říha) N.P.Taylor Mexico (W. Nuevo León)
Echinocereus viereckii subsp. viereckii Mexico (SW. Tamaulipas, Nuevo León, Coahuila)

Distribution

Echinocereus viereckii is found in the Mexican states of Nuevo León and Tamaulipas.

  • Plants growing in Nogales, Huasteca canyon, Nuevo Leon
    Plants growing in Nogales, Huasteca canyon, Nuevo Leon
  • Plants growing Huasteca canyon, Nuevo Leon
    Plants growing Huasteca canyon, Nuevo Leon

Taxonomy

Erich Werdermann first described the species in 1934, and the specific epithet viereckii honors German plant collector Hans-Wilhelm Viereck.[4]

References

  1. ^ Guadalupe Martínez, J. (2017) [amended version of 2013 assessment]. "Echinocereus viereckii". IUCN Red List of Threatened Species. 2017: e.T152411A121623251. doi:10.2305/IUCN.UK.2017-3.RLTS.T152411A121623251.en.
  2. ^ a b "Echinocereus viereckii Werderm". Plants of the World Online. 2021-07-08. Retrieved 2024-06-24.
  3. ^ Anderson, Edward F. (2001). The Cactus Family. Portland, Or: Timber Press (OR). p. 250-251. ISBN 0-88192-498-9.
  4. ^ "Au Cactus Francophone". Au Cactus Francophone (in French). Retrieved 2024-06-26.

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