Pilosocereus armatus
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| Pilosocereus armatus | |
|---|---|
 | |
| In Guánica State Forest, Puerto Rico | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Pilosocereus |
| Species: | P. armatus |
| Binomial name | |
| Pilosocereus armatus (Otto ex Pfeiff.) A.R.Franck[1] | |
| Synonyms[1] | |
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List
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Pilosocereus armatus is a species of flowering plant in the cactus family Cactaceae, native to the Virgin Islands and Puerto Rico.[1] It was first described by Christoph Friedrich Otto in 1837 as Cereus armatus, and transferred to the genus Pilosocereus in 2021.[2] It has been treated as Pilosocereus royenii,[3] and Pilocereus royenii var. armatus is among its many synonyms.[1] However, P. royenii is a name without a clear application.[4]
Pilosocereus armatus has bluish green stems with 7–11 ribs. Its branches are usually upright. Areoles have spines up to 6 cm (2.4 in) long and silky hairs up to 4 cm (1.6 in) long. Non-flowering areoles have fewer hairs. The flower is 5–7 cm (2.0–2.8 in) long. The inner perianth segments are pinkish, the outer ones pinkish to pale green. The fruit is red.[3]
