Strophocactus sicariguensis

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Strophocactus sicariguensis
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Strophocactus
Species:
S. sicariguensis
Binomial name
Strophocactus sicariguensis
(Croizat & Tamayo) S.Arias & N.Korotkova[1]
Synonyms[2][3]
  • Acanthocereus sicariguensis Croizat & Tamayo
  • Pseudoacanthocereus sicariguensis (Croizat & Tamayo) N.P.Taylor

Strophocactus sicariguensis, synonym Pseudoacanthocereus sicariguensis, is a species of plant in the family Cactaceae. It is native to Colombia and Venezuela. It has often sprawling thin stems and white funnel-shaped flowers that open at night.

Description[]

Strophocactus sicariguensis grows as a shrub, initially upright and later sprawling. It branches freely from the base. The thin stems are up to 2 m (6 ft 7 in) long and 3 cm (1.2 in) across and have 2–5 ribs bearing areoles with spines up to 2 cm (0.8 in) long. The white funnel-shaped flowers open at night and are up to 16 cm (6.3 in) long.[4]

Taxonomy[]

Strophocactus sicariguensis was first described, as Acanthocereus sicariguensis, in 1947.[1] It was transferred to the genus Pseudoacanthocereus as Pseudoacanthocereus sicariguensis by Nigel P. Taylor in 1992,[5] a placement still accepted by some sources as of February 2021.[2] A molecular phylogenetic study of the Hylocereeae by Korotkova et al. published in 2017 showed that Pseudoacanthocereus sicariguensis formed a clade with Strophocactus wittii and Pseudoacanthocereus brasiliensis (the only other species placed in Pseudoacanthocereus):[3]

 
 

 
 
 

Pseudoacanthocereus brasiliensis

 
 
 

Pseudoacanthocereus sicariguensis 

 
 

Strophocactus wittii

 
 
Strophocactus sensu Korotkova et al. (2017)
 
 

Accordingly, both species of Pseudoacanthocereus were transferred to Strophocactus.[3]

Distribution[]

Strophocactus sicariguensis is native to Colombia and Venezuela,[2] in particular around the Maracaibo Basin.[3]

References[]

  1. ^ Jump up to: a b "Strophocactus sicariguensis (Croizat & Tamayo) S.Arias & N.Korotkova". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew. Retrieved 2021-02-24.
  2. ^ Jump up to: a b c "Pseudoacanthocereus sicariguensis (Croizat & Tamayo) N.P.Taylor". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2021-02-24.
  3. ^ Jump up to: a b c d Korotkova, Nadja; Borsch, Thomas & Arias, Salvador (2017), "A phylogenetic framework for the Hylocereeae (Cactaceae) and implications for the circumscription of the genera" (PDF), Phytotaxa, 327 (1): 1–46, doi:10.11646/phytotaxa.327.1.1
  4. ^ Anderson, Edward F. (2001), "Pseudoacanthocereus", The Cactus Family, Pentland, Oregon: Timber Press, pp. 591–592, ISBN 978-0-88192-498-5
  5. ^ "Pseudoacanthocereus sicariguensis (Croizat & Tamayo) N.P.Taylor". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew. Retrieved 2021-02-24.
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