Pygmaeocereus densiaculeatus

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Pygmaeocereus densiaculeatus
Haageocereustenuis.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Subtribe: Trichocereinae
Genus: Pygmaeocereus
Species:
P. Densiaculeatus
Binomial name
Pygmaeocereus Densiaculeatus
Backeb.
Synonyms
  • Echinopsis lanugispina (F.Ritter) Molinari & Mayta in Succulentopi@ 14: 20 (2015)
  • Echinopsis tenuis (F.Ritter) Molinari in Succulentopi@ 13: 19 (2015)
  • Haageocereus decumbens subsp. tenuis {{|(F.Ritter) D.R.Hunt in Cactaceae Syst. Init.14: 17 (2002)}}
  • Haageocereus lanugispinus F.Ritter in Kakteen Südamerika 4: 1395 (1981)
  • Haageocereus tenuis F.Ritter in Kakteen Südamerika 4: 1421 (1981)

Pygmaeocereus densiaculeatus, better known by its synonym Haageocereus tenuis, [1] is a species of cactus from Peru. [2] It is a Tetraploid species that which makes it likely of hybrid origin. [3]

Contents

Description

Pygmaeocereus tenuis grows greyish-green long, decumbent stems. These stems are 1.5-3 cm wide and are up to 3 feet long. Each stem has 12-15 ribs with wavy margins. The stem has greyish closely packed areoles, giving the name densiaculeatus. Each areole has 7-10 central spine around 20mm long and about 30 radial spines 2-3mm long. Each spine has microscopic hairs helping it capture water from fog. Flowers are produced rarely and never profusely, petals are white in color. Flowers are up to 20 cm long. The oblong fruits are a pinkish red color and are up to 1.7 by 2.5 cm. [3]

References

  1. ↑ "Echinopsis tenuis (F.Ritter) Molinari | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2025-06-18.
  2. ↑ "Pygmaeocereus densiaculeatus Backeb. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2025-06-18.
  3. 1 2 "Haageocereus tenuis". www.llifle.net. Retrieved 2025-06-18.
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