Pilosocereus royenii

{{Short description|Species of cactus}}

{{Speciesbox

|status = LC

|status_system = IUCN3.1

|status_ref = {{cite iucn |author=Taylor, N.P. |year=2017 |title=Pilosocereus royenii |amends=2013 |page=e.T152164A121581463 |doi=10.2305/IUCN.UK.2017-3.RLTS.T152164A121581463.en |access-date=30 November 2022}}

|image = Pilosocereusroyenii.jpg

|taxon = Pilosocereus royenii

|authority = (L.) Byles & G.D.Rowley 1957

|synonyms = Cactus royenii L 1753

Cephalocereus brooksianus Britton & Rose

Cephalocereus millspaughii Britton

Cephalocereus nobilis (Haw.) Britton & Rose

Cephalocereus urbanianus (K.Schum.) Britton & Rose

Cereus nobilis Haw.

Pilocereus urbanianus K.Schum.

Pilosocereus millspaughii (Britton) Byles & G.D.Rowley{{GRIN | accessdate=2009-12-04}}

}}

Pilosocereus royenii is a species of cactus found throughout the West Indies and the states of Yucatán and Quintana Roo in Mexico. Common names include Royen's tree cactus,{{PLANTS|id=PIRO6|taxon=Pilosocereus royenii|accessdate=3 October 2015}} dildo cactus,{{Cite web|url=http://lhostelaw.com/0206tc/0206tc22.htm|title = Dildo Cactus, Providenciales, Turks & Caicis Islands, 30May-06June2002 - by David J. l'Hoste}} and pipe organ cactus. It is composed of multiple long, tubular shaped branches, each ribbed with multiple sections and sharp spines.