Selenicereus pteranthus

(Link ex A. Dietrich) Britton & Rose

Contr. U. S. Natl. Herb. 12: 431. 1909.

Common names: Snake cactus
Introduced
Basionym: Cereus pteranthus Link ex A. Dietrich Allg. Gartenzeitung 2: 209. 1834
Synonyms: Selenicereus nycticalus (Link) W. T. Marshall
Treatment appears in FNA Volume 4. Treatment on page 178. Mentioned on page 177.

Plants terrestrial to epiphytic, vinelike, clambering, pendent. Roots frequently aerial and adventitious. Stems bluish green to purple, to 100–300 × 2.5–5 cm; ribs 4–6, acute; areoles 2–2.5 cm apart along ribs, 1.5–3.0 mm. Spines 1–5, short conic (acicular on immature stems), 1–3 mm; radial and central spines not distinguishable. Flowers 25–30 × 20 cm; outer tepals brown or purplish (or yellow?), narrow; inner tepals white, oblanceolate, apex acute; areoles of ovary and flower tube bearing numerous scales and long, white, hairlike spines. Fruits red, spheric, 45–70 mm diam., hidden by short (to 1 cm), yellowish, bristlelike spines and long, white hairlike spines. 2n = 22.


Phenology: Flowering year-round.
Habitat: Disturbed coastal sites
Elevation: 0-10 m

Discussion

Selenicereus pteranthus is widely cultivated for its showy, fragrant flowers and occasionally escapes. The species is reported from six counties in Florida, where it is presumed naturalized.

Selected References

None.

Lower Taxa

None.
... more about "Selenicereus pteranthus"
cushionlike +
circular to linear +
2.5 cm25 mm <br />0.025 m <br /> (6 cm60 mm <br />0.06 m <br />) +
deciduous +  and persistent +
orbicular +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Michael W. Hawkes +
(Link ex A. Dietrich) Britton & Rose +
hardened +
Cereus pteranthus +
triangular +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
? (?) +, ? (?) +  and ? (?) +
0.1 cm1 mm <br />0.001 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
not distinguishable +
1 cm10 mm <br />0.01 m <br /> (?) +
proliferating +
flattened +  and cylindric +
Snake cactus +
mucilaginous +
Fla. +  and Mexico +
0-10 m +
not separating +
25 cm250 mm <br />0.25 m <br /> (30 cm300 mm <br />0.3 m <br />) +
fragrant +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (15 cm150 mm <br />0.15 m <br />) +
indehiscent +  and dehiscent +
persistent +, long +  and deciduous +
spheric +
5 cm50 mm <br />0.05 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Disturbed coastal sites +
deciduous +
ascending +  and spreading +
oblanceolate +
deciduous +  and persistent +
rudimentary +
flat +  and terete +
nearly +  and microscopic +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
tuberculate +
fluted;spheric;depressed-spheric or club-shaped +
deciduous +  and persistent +
Flowering year-round. +
mucilaginous +
ridgelike +  and nipple--shaped +
Contr. U. S. Natl. Herb. +
prominent +
adventitious +
not conspicuous +
triangular +
arillate +  and strophiolate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
ovoid;reniform +
Introduced +
white +  and yellowish +
straight +
deciduous +  and persistent +
pliable +  and more slender and flexible +
1 (?) +  and 5 (?) +
hairlike +  and conic +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
hard +  and rigid +
decurrent +
unsegmented +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
bluish green +  and purple +
100cm;300cm +
cylindric +  and segmented +
slender +
succulent +
2.5cm;5cm +
white +  and yellowish +
tuberculate +
Selenicereus nycticalus +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Selenicereus pteranthus +
Selenicereus +
species +
dull +  and glossy +
plant +  and vinelike +
terrestrial;epiphytic +
pendent +  and clambering +
barrel-shaped +  and spheric +