Portulacaria namaquensis

Portulacaria namaquensis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Didiereaceae
Genus: Portulacaria
Species:
P. namaquensis
Binomial name
Portulacaria namaquensis
Sond.
Synonyms[1]
  • Ceraria gariepina H.Pearson & Stephens
  • Ceraria namaquensis (Sond.) H.Pearson & Stephens

Portulacaria namaquensis, synonym Ceraria namaquensis,[1] with the common names Namaqua porkbush and Namaqua portulacaria, is a species of succulent shrub, native to the border between the Cape Provinces of South Africa and Namibia.[2] [3]

Description

It reaches heights of 1.3 to 1.8 meters, and typically has small, ovoid, club-shaped leaves. These succulent leaves are deciduous, and densely coat its stems. The stems are stout and grow upwards, forking. They are very slow-growing. Its flowers are usually unisexual.[citation needed]

Detail of the distinctive leaves

Taxonomy

The species was first described as Portulacaria namaquensis in 1862 by Otto Wilhelm Sonder. It was transferred to the genus Ceraria in 1912.[1] A phylogenetic study in 2014 showed that Ceraria was nested within Portulacaria,[4] so the accepted name as of March 2024 is Portulacaria namaquensis.[1]

Its closest relative is the species Portulacaria armiana.[4][5]

Distribution

The natural habitat of this species extends along the Orange River valley, along the border between Namibia and South Africa. It has also been recorded near the coast slightly further north in Namibia.[6]

Cultivation

Its native habitat is an extremely arid, winter-rainfall area. In cultivation, it requires extremely well-drained soil, and is usually grown grafted onto a root-stock of the more resilient Portulacaria afra.[citation needed]

References

  1. ^ a b c d "Portulacaria namaquensis Sond." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2024-03-17.
  2. ^ "Ceraria namaquensis - Overview - Encyclopedia of Life". Encyclopedia of Life. Retrieved 2017-08-02.
  3. ^ JSTOR entry: Ceraria namaquensis
  4. ^ a b P.Bruyns, M.Oliveira-Neto, G.F. Melo de Pinna, C.Klak: Phylogenetic relationships in the Didiereaceae with special reference to subfamily Portulacarioideae. Taxon 63 (5). October 2014. 1053-1064.
  5. ^ "Ceraria namaquensis". www.cactus-art.biz. Retrieved 2017-08-02.
  6. ^ Annals of the South African Museum 9: 33. 1912. (Ann. S. African Mus.)
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