CactiGuide.com
Cacti Genus acanthocereus




Cactus Family                                                                                                
CactiGuide.com Custom Nomenclature - System Default    About This | Login

Acanthocereus tetragonus


Common Name(s): Barbed-Wire Cactus
Synonym(s): Cactus tetragonus, Cereus tetragonus, Cactus pentagonus, Cereus pentagonus, Acanthocereus pentagonus, Cereus acutangulus, Acanthocereus acutangulus, Cereus princeps, Acanthocereus princeps, Cereus variabilis, Acanthocereus floridanus
To view publication details for this taxon and related synonyms Click Here.
To view a chart comparing alternate taxonomy Click Here.
Subfamily: Cactoideae
Tribe: Pachycereeae
Distribution: Costa Rica : Honduras : Panama : Florida, Texas - United States : Mexico : Colombia : Venezuela (Central America, North America, South America)
Habit: Angled
Flower: WhiteEncounterability: Unusual in Collections
Original Description: Succulenta xx p.169 - Wagenaar Hummelinck (1938)
Stem not highly branched, first upright, later more or less suspended and only one support, to about 8 m long and about 6 m high. Stem Members to 11/2 (-2) m long, 4-5 (-6) cm thick, (2 -) 3-4 (-5) ribs; ribs strongly flattened, green, with weak, with notches at each areole directed towards the apex. Areoles round, 4 - 8 mm in diameter, 3 - 6 (-7) cm from each other, spiny, with a grayish, felt. Spines first 4-6, later, 6-8 (-10), to divided in the middle and Radial Spines, awl-shaped, straight, gray, sometimes with dark areas, with more or less, black top. Central spine usually 1, sometimes 3, oblique facing up to 4 cm long; radial spines (4 -) 5-7 (- 9), radially protruding, to 2 inches long. (Stunted stem members, which become normal stem members either lose weight: approx 12 cm long, ca 1 cm thick, with 6-7 ribs; areoles small, densely crowded with 9-15 protruding needle-like spines of 3-5 mm in length.) Flower tube 14-19 cm long, 60-65 wrappers longer than 2 cm; night blooming star. Bracts are reversed-lanceolate or elliptical, focused or pointed, 6-4 times as long as wide, and 4 cm long, the inner slightly shorter than the others, focus, white, whatever the outer fleshy, greenish. Flower Soil trumpet-shaped, thick and fleshy, 10-13 cm deep, 1-1 inches wide at the base, 1 - l cm in the middle, 2 - 3 cm at the top, on the outside with 9-15 areoles in the axils of small, triangular scales; areoles fuzzy, brownish, often with 1-3 to 1 inch long thorns. Stamens 700-900, implanted in the upper half of the flower tube. Helmet Wires 2-6 cm, the lower longer than the shorter implanted; the lowest upright, flattened, not cone-shaped at the base. Anthers erect, 1 - 8 mm long, the largest on the longest stamens, yellow or brownish. Stamp Lobe 10-12, 10-12 mm long. Style cylindrical, 11 -16 cm long, 2-4 mm thick. Ovary ovoid, 1 - 1 x 1 -1 cm, 18-35 spiny areoles in the axils of small delta-shaped scales; areoles fuzzy, brownish, each with 1-4 to 1 inch long thorns; perianth not falling. Fruit ovate or obovate, about 8 X 5 cm, red, any areole with 3-6 to 1 inch long thorns, red fruit flesh. Seeds about 4 X 3 X 2 mm, pear-shaped, fairly smooth, shiny black.
This icon appears next to images that have been 3rd party verified. Click Here to learn more.
Click any picture below to enlarge.
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Desert Botanical Garden , Phoenix, AZ

Photographer: Daiv Freeman
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Keven Hamrick's Private Collection

Photographer: Kevin Hamrick
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Keven Hamrick's Private Collection

Photographer: Kevin Hamrick
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Habitat in Guanacaste, Costa Rica

Photographer: Byron Fan
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Habitat in Guanacaste, Costa Rica

Photographer: Byron Fan
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Habitat in Guanacaste, Costa Rica

Photographer: Byron Fan
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Habitat in Guanacaste, Costa Rica

Photographer: Byron Fan
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Habitat in Nicaragua

Photographer: Leland Smith
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Habitat in Nicaragua

Photographer: Leland Smith
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Kyle Barker's Private Collection

Photographer: Kyle Barker

Photographer's Website: Click Here
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Fairchild Botanic Garden, Miami, FL

Photographer: Gerard Ardisson

Photographer's Website: Click Here
Acanthocereus tetragonus
A. tetragonus
Picture taken at: Gerard Ardisson's Private Collection

Photographer: Gerard Ardisson

Photographer's Website: Click Here

*Currently 6 of 6 known species are represented on CactiGuide.com.


Do you have images of this species that would complement this page?

Visit the Big Picture Project to to learn how you can contribute.
© 2002-2012, CactiGuide.com All rights reserved.