Jump to content

Echinocereus acifer

From Wikipedia, the free encyclopedia

Echinocereus acifer
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Echinocereus
Species:
E. acifer
Binomial name
Echinocereus acifer
((Otto ex Salm-Dyck) Jacobi
Synonyms
  • Cereus acifer Otto ex Salm-Dyck 1850
  • Echinocereus triglochidiatus var. acifer (Otto ex Salm-Dyck) Bravo 1978
  • Echinocereus triglochidiatus subsp. acifer (Otto ex Salm-Dyck) U.Guzmán 2003
  • Echinocereus acifer subsp. acifer
  • Echinocereus acifer var. brevispinulus Jacobi 1885
  • Echinocereus acifer var. diversispinus K.Schum. 1898
  • Echinocereus acifer var. durangensis K.Schum. 1898
  • Echinocereus acifer var. tenuispinus Jacobi 1885
  • Echinocereus acifer var. trichacanthus Hildm. 1891
  • Echinocereus acifer subsp. tubiflorus W.Rischer 1998
  • Echinocereus acifer subsp. ventanensis W.Rischer 2009
  • Echinocereus polyacanthus var. densus (Regel) N.P.Taylor 1984
  • Echinopsis valida var. densa Regel 1852

Echinocereus acifer is a species of Echinocereus found in Mexico[1]

Description

[edit]

The plant sprouts from the base, forming small cushions of 5 to 8 stems. The dark green, cylindrical plant body grows to a height of 10 to 40 cm (3.9 to 15.7 in) and a diameter of 5 to 10 cm (2.0 to 3.9 in). It has 9 to 12 heavily warty, tuberous ribs. The tomentose areoles on new shoots are 1 to 1.5 cm (0.39 to 0.59 in) apart and about 3 mm (0.12 in) in diameter. The thorns are yellow to reddish-brown, later turning gray, with up to 5 central spines surrounded by 10 to 15 radiating marginal spines.

Buds emerge from a woolly white pad with reddish-brown bristles. The funnel-shaped flowers are red on the outside and yellow on the inside, rarely crooked, and measure 8 to 12 cm (3.1 to 4.7 in) long with a diameter of up to 10 cm (3.9 in). Unlike the monoecious flowers of Echinocereus polyacanthus, the flowers of Echinocereus acifer are hermaphroditic and self-pollinating. The stamens are yellow, and the stigma is green to light green. The oval fruits remain greenish, measuring 2 cm (0.79 in) in diameter and 3 cm (1.2 in) in length.[2]

Distribution

[edit]

Echinocereus acifer is found in the Mexican states of Guanajuato, Zacatecas, San Luis Potosí, and Durango, typically growing in rocky forest areas, moss, or rock crevices.

Taxonomy

[edit]

First described as Cereus acifer in 1850 by Joseph zu Salm-Reifferscheidt-Dyck, Georg Albano von Jacobi reclassified it into the genus Echinocereus in 1856.[3] The specific epithet acifer comes from the Latin words "acus" (needle) and "-fer" (bearing), referring to the plant's thorniness.[4]

References

[edit]
  1. ^ "Echinocereus acifer (Otto ex Salm-Dyck) Haage". Plants of the World Online. Retrieved 2024-05-04.
  2. ^ Haage, Walther (2008). Kakteen von A bis Z (in German). Köln: Anaconda. p. 120. ISBN 978-3-86647-260-0.
  3. ^ Salm-Reifferscheidt, Joseph (1850). "Cactæ in Horto Dyckensi cultæ anno 1849". Henry & Cohen. doi:10.5962/bhl.title.64574. Retrieved 2024-06-24.
  4. ^ Dietrich, Albert; Otto, Friedrich (1856). "Allgemeine Gartenzeitung". Biodiversity Heritage Library. Retrieved 2024-06-24.
[edit]