Cactus fimbriatus Descourt.
Cactus fulvispinosus Spreng.
Cactus royenii L.
Cactus strictus Willd.
Cephalocereus barbadensis Britton & Rose
Cephalocereus brooksianus Britton & Rose
Cephalocereus millspaughii Britton
Cephalocereus monoclonos (DC.) Britton & Rose
Cephalocereus nobilis (Haw.) Britton & Rose
Cephalocereus strictus (DC.) Borg
Cephalocereus swartzii (Griseb.) Britton & Rose
Cephalocereus urbanianus (K.Schum.) Britton & Rose
Cereus barbadensis A.Berger
Cereus brooksianus (Britton & Rose) Vaupel
Cereus curtisii Pfeiff.
Cereus fulvispinosus Haw.
Cereus fulvispinus Salm-Dyck
Cereus gloriosus Pfeiff.
Cereus millspaughii (Britton) Vaupel
Cereus mollis Pfeiff.
Cereus monoclonus DC.
Cereus nigricans Pfeiff.
Cereus nobilis Haw.
Cereus royenii (L.) Mill.
Cereus strictus DC.
Cereus swartzii Griseb.
Cereus urbanianus (K.Schum.) A.Berger
Pilocereus barbadensis (Britton & Rose) A.Berger
Pilocereus brooksianus (Britton & Rose) F.M.Knuth
Pilocereus millspaughii (Britton) F.M.Knuth
Pilocereus nigricans Sencke ex Lem.
Pilocereus nobilis (Haw.) Schum.
Pilocereus royenii (L.) Haw. ex C.F.Först. & Rümpler
Pilocereus urbanianus K.Schum.
Pilosocereus barbadensis (Britton & Rose) Byles & G.D.Rowley
Pilosocereus brooksianus (Britton & Rose) Byles & G.D.Rowley
Pilosocereus millspaughii (Britton) Byles & G.D.Rowley
Pilosocereus monoclonos (DC.) Byles & G.D.Rowley
Pilosocereus nobilis (Haw.) Byles & G.D.Rowley
Pilosocereus swartzii (Griseb.) Byles & G.D.Rowley
Pilosocereus urbanianus (K.Schum.) Byles & G.D.Rowley
Pseudopilocereus nobilis (Haw.) Buxb.
Pilosocereus royenii is a succulent, very spiny perennial plant. Growing up to 8 metres tall, with a much-branched, tree-like form, the leafless, spiny stems are around 5 - 8cm thick and composed mostly of soft water-storing tissues[
The planis sometimes harvested from the wild for local use as a food.
This species is widely distributed through the Caribbean and is relatively abundant throughout its range. Its main threat is the development of its coastal habitats for tourism. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[
Caribbean - Trinidad to Cuba and the Bahamas; southern N. America - southern Mexico.
Dry tropical and subtropical forests and shrublands, mainly in coastal areas with limestone rocky soils and volcanic rocky soils; at elevations up to 200 metres[
|Conservation Status||Least Concern
|Cultivation Status||Ornamental, Wild
A plant of drier areas in the tropical lowlands, it will take very little frost before growing tips of the stems are damaged[
Grows best in bright shade to full sun[
]. Requires a well-drained soil. Established plants are very drought tolerant[
The plant probably flowers irregularly through the year. The tubular fleshy flowers extend straight and nearly horizontal, opening at night[
The tree cactus is remarkably well adapted to very dry conditions. The root system is broad and near the surface where water from light rains can be absorbed rapidly. The bulk of the plant is made up of soft, water-storing tissues, which are light green near the surface and yellowish within; juicy and slightly salty in taste. This retains water that has been absorbed after rains for use over long dry periods. The surface area is greatly reduced through absence of leaves, and loss of water to the air (transpiration) is correspondingly checked. The branches have a very thick skin which also retards evaporation and, being green, at the same time carry on the processes of food manufacture (photosynthesis), normally functions of the green leaves. Further, the formidable spines protect the juicy stems from animal life[
Fruit - raw[
]. The ovary develops into the fruit, while the remaining flower parts shrivel and dry, remaining attached. The purple-black, flattened berry contains red juicy flesh slightly sweet and edible and many small shiny black seeds less than 1.5mm long[
The soft wood of the stems is a light brown fibrous cylinder with large white rays[
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