Jump to content

Echinocereus adustus

From Wikipedia, the free encyclopedia

Echinocereus adustus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Echinocereus
Species:
E. adustus
Binomial name
Echinocereus adustus
Engelm. 1848
Synonyms
  • Cereus adustus (Engelm.) Engelm. 1849
  • Cereus pectinatus f. adustus (Engelm.) Voss 1894
  • Echinocereus pectinatus var. adustus (Engelm.) Haage 1861

Echinocereus adustus is a species of cactus native to Mexico.

Description

[edit]

Echinocereus adustus typically grows as a solitary cactus.[2] Its shoots are depressed spherical to short cylindrical, reaching up to 19 cm (7.5 in) long and 5 to 12 cm (2.0 to 4.7 in) in diameter, with fibrous roots.[2] It has 11 to 20 wavy, slightly tuberous ribs.[2] The cactus may have up to nine dark brown to blackish central spines, up to 3.2 cm long, with the top spine being very short and the bottom spines spreading horizontally.[2] It also has 8 to 31 white marginal spines with darker tips, up to 1.8 cm (0.71 in) long, with the radial spines being the longest.[2]

The short, funnel-shaped flowers are pink, appearing well below the shoot tips.[2] They are 3 to 10 cm (1.2 to 3.9 in) long and 4 to 7 cm (1.6 to 2.8 in) in diameter, with white or very light green scars.[2] The egg-shaped fruits are up to 2 cm (0.79 in) long with falling thorns, and when ripe, they are almost dry and split vertically.[2]

Subspecies

[edit]

There are two recognized subspecies:[3]

Image Scientific name Distribution
Echinocereus adustus subsp. adustus Mexico (Chihuahua)
Echinocereus adustus subsp. keizerae W.Blum & Dosedal Mexico (Chihuahua)
Echinocereus adustus subsp. schwarzii (A.B.Lau) N.P.Taylor Mexico (Durango)

Distribution

[edit]

Echinocereus adustus is found growing in sandy loam in grasslands in the Mexican states of Chihuahua and Durango at altitudes between 1,800 to 2,400 m (5,900 to 7,900 ft).[4]

Taxonomy

[edit]

The species was first described by George Engelmann in 1848.[5] The specific epithet "adustus" is Latin for "blackened" or "burnt," referring to the blackish spines of the cactus.[6]

References

[edit]
  1. ^ Fitz Maurice, B.; Sotomayor, M.; Fitz Maurice, W.A.; Hernández, H.M.; Smith, M. (2017) [amended version of 2013 assessment]. "Echinocereus adustus". IUCN Red List of Threatened Species. 2017: e.T152470A121475913. doi:10.2305/IUCN.UK.2017-3.RLTS.T152470A121475913.en.
  2. ^ a b c d e f g h Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 191-192. ISBN 3-8001-4573-1.
  3. ^ "Echinocereus adustus Engelm". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2024-06-29.
  4. ^ "Echinocereus adustus". LLIFLE. 2013-08-04. Retrieved 2024-06-29.
  5. ^ Wislizenus, F. A. (1848). Memoir of a tour to northern Mexico :connected with Col. Doniphan's expedition, in 1846 and 1847 /by A. Wislizenus. Washington: Tippin & Streeper, printers. doi:10.5962/bhl.title.41509.
  6. ^ Arts, American Academy of (1849). "Memoirs of the American Academy of Arts and Sciences". The Academy. ISSN 0096-6134. Retrieved 2024-06-29.
[edit]