Aylostera tarvitaensis

Aylostera tarvitaensis
A potted cactus with orange flowers
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Aylostera
Species:
A. tarvitaensis
Binomial name
Aylostera tarvitaensis
(F.Ritter) Mosti & Papini, 2011
Synonyms[1]

Rebutia tarvitaensis F.Ritter

Aylostera tarvitaensis is a species of flowering plant in the cactus family.[2]

Description

Aylostera tarvitaensis is a small, solitary cactus species. Its stems can be spherical, globose, or cylindrical, with light green skin, and they typically reach 2 to 3 cm in diameter. It has a tiny, beet-like root. The plant features about 13 to 15 ribs, divided into low tubercles. Its oval areoles are approximately 1.5 mm long and 1 mm wide, with a yellowish-brown color. It has 7 to 9 slender, flexible spines that are 2.5 to 5 mm long. These spines are weakly needle-like, arranged radially, and start reddish-brown, turning grayish with age. The flowers are large funnel-shaped, orange-red, and can be up to 6 cm long and 5–6 cm in diameter—the largest flowers among its genus. The globose fruit is 4 to 5 mm wide, greenish-brown, covered with wool and whitish bristles, and contains a few large, brownish-black seeds. The seeds are about 1.3 mm, ovoid, with a basal hilum.[3]

Distribution

Aylostera tarvitaensis is native to the deserts and dry shrublands of southern in the department of Chuquisaca, Bolivia at elevations around 2700 meters.[1]

Taxonomy

It was first described as Rebutia tarvitaensis in 1977 by German botanist Friedrich Ritter, named after the town of Tarvita, Bolivia, where it was discovered. Later, botanists Stefano Mosti and Alessio Papini reclassified it into the genus Aylostera, in a 2011 publication in the Pakistan Journal of Botany.[4]

References

  1. 1 2 "Aylostera tarvitaensis (F.Ritter) Mosti & Papini". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 27 April 2026.
  2. ↑ "Aylostera tuberosa (F.Ritter) Backeb". Catalogue of Life. Retrieved 2026-04-29.
  3. ↑ "Rebutia tarvitaensis". www.llifle.net. Retrieved 2026-07-10. This article incorporates text from this source, which is available under the CC BY-SA 3.0 license.
  4. ↑ Mosti, Stefano; Bandara, Nadeesha Lewke; Papini, Alessio (2011-12-01). "(PDF) Further insights and new combinations in Aylostera (Cactaceae) based on molecular and morphological data". Pakistan Journal of Botany. 43 (6). Pakistan Journal of Botany. ISSN 0556-3321. Retrieved 2026-06-27.
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