Badmin: Created page with "{{Taxobox | name = Peniocereus | image = Peniocereus_greggii.jpg | kingdom = Plantae | family = Cactaceae | subfamily = Cactoideae | tribe = Phyllocacteae | subtribe = Echinocereinae | genus = '''Peniocereus''' | authority = (A.Berger) Britton & Rose (1909) | notes = Taxonomy follows Joël Lodé (2015) with reference to Arias et al. (2005), Hernández-Hernández et al. (2011), and Hunt (1998, 2000). }} == Etymology == The name means "tail cactus", re..."

2026-04-22T10:12:05Z

Created page with "{{Taxobox | name = Peniocereus | image = Peniocereus_greggii.jpg | kingdom = Plantae | family = Cactaceae | subfamily = Cactoideae | tribe = Phyllocacteae | subtribe = Echinocereinae | genus = '''Peniocereus''' | authority = (A.Berger) Britton & Rose (1909) | notes = Taxonomy follows Joël Lodé (2015) with reference to Arias et al. (2005), Hernández-Hernández et al. (2011), and Hunt (1998, 2000). }} == Etymology == The name means "tail cactus", re..."

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{{Taxobox
| name = Peniocereus
| image = Peniocereus_greggii.jpg
| kingdom = [[Plantae]]
| family = [[Cactaceae]]
| subfamily = [[Cactoideae]]
| tribe = [[Phyllocacteae]]
| subtribe = [[Echinocereinae]]
| genus = '''Peniocereus'''
| authority = (A.Berger) Britton & Rose (1909)
| notes = Taxonomy follows Joël Lodé (2015) with reference to Arias et al. (2005), Hernández-Hernández et al. (2011), and Hunt (1998, 2000).
}}

== Etymology ==
The name means "tail cactus", referring to the long, slender, trailing stems.

== Description ==
'''Peniocereus''' is a genus of shrubby cacti with thin, elongated stems and large underground storage roots.

* '''Habit''': Shrubby; prostrate to semi-erect; often supported by surrounding vegetation.
* '''Stems''': Slender, ribbed; up to ~4 m long; papillose or tomentose epidermis.
* '''Branching''': Sparse; stems often appear filamentous.
* '''Roots''': Tuberous or napiform; often very large relative to the plant.
* '''Spines''': Small, fine, acicular; sometimes appressed.
* '''Growth form''': Monomorphic (juvenile and adult stems similar).
* '''Flowers''': Diurnal or nocturnal depending on species; large; self-sterile.
* '''Flower shape''': Funnel-shaped with long, slender tube bearing bristles or spines.
* '''Flower color''': Mostly white to off-white; sometimes red, pink, or purple.
* '''Pollination''': By sphingid moths (Sphingidae) and hummingbirds.
* '''Fruits''': Ovoid to pear-shaped; fleshy; bright red with red pulp; with bristles and deciduous spines.
* '''Seeds''': Ovate; black; rough-textured.

== Habitat ==
Occurs in a variety of arid to semi-arid environments:

* limestone and sandy soils
* alluvial plains
* rocky outcrops and cliffs
* deciduous dry forests
* shrublands and coastal zones

Often grows under or among shrubs (e.g. ''Larrea'', ''Prosopis'') for support and protection.

Altitude range: from sea level to ~1500 m.

== Distribution ==
North America:

* Mexico (widespread across multiple states)
* United States (Arizona, southern New Mexico, southern Texas)

== Taxonomy ==
A complex genus with significant redefinition based on molecular data.

Key points:

* Historically included taxa from ''Nyctocereus'', ''Cullmannia'', and ''Neoevansia''
* Hunt & Taylor (1991): partial reclassification of ''Nyctocereus'' species
* Arias et al. (2005): demonstrated polyphyly of ''Peniocereus'' sensu lato
* ''Nyctocereus serpentinus'' separated again as a distinct lineage
* Subgenus ''Pseudoacanthocereus'' shown to belong within ''Acanthocereus''
* Hernández-Hernández et al. (2011): confirmed paraphyly of expanded concept
* Strong phylogenetic link between some former ''Peniocereus'' taxa and Hylocereeae

'''Peniocereus sensu stricto''' is retained as a valid genus in Lodé (2015).

== Species ==
According to Joël Lodé (2015):

* [[Peniocereus diguetii]]
* [[Peniocereus greggii]]
* [[Peniocereus hoockeanus]] (nom. inval.)
* [[Peniocereus johnstonii]]
* [[Peniocereus lazaro-cardenasii]]
* [[Peniocereus marianus]]
* [[Peniocereus striatus]]
* [[Peniocereus viperinus]]
* [[Peniocereus zopilotensis]]

== Notes ==
* Notable for massive underground tuberous roots relative to small aerial stems.
* Often nearly invisible in habitat except during flowering.
* Large flowers contrast strongly with delicate stems.
* Represents a refined, restricted lineage after removal of unrelated taxa.
* Strong evolutionary links to ''Acanthocereus'' in excluded groups.

[[Category:Cactaceae]]
[[Category:Cactoideae]]
[[Category:Phyllocacteae]]
[[Category:Echinocereinae]]
[[Category:Peniocereus]]

Peniocereus - Revision history