Tridentea longipes

Tridentea longipes

Scientific Name

Tridentea longipes (C.A. Lückh.) L.C. Leach

Synonyms

Stapelia longipes, Tromotriche longipes, Ceropegia penduliflora subsp. longipes

Scientific Classification

Family: Apocynaceae
Subfamily: Asclepiadoideae
Genus: Tridentea

Description

Tridentea longipes is a clump-forming, stem succulent up to 4 inches (10 cm) tall. The erect stems are short, glabrous, 4-angled, dull green and usually have a purplish tinge near the tips. The beautiful, star-like flowers appear on minute inflorescences and each stem bears only one inflorescence, from the stem base.

Hardiness

USDA hardiness zone 9a to 11b: from 25 °F (−3.9 °C) to 50 °F (+10 °C).

How to Grow and Care

Stapeliads are relatively easy to grow. They should be treated as an outdoor plant as they will easily rot indoors and cannot flower without exposure to outdoor temperature fluctuations. They should be grown under cover so that watering can be controlled. Stapeliads require a reasonable amount of sunlight to promote flowering and maintain a well shaped plant. Very shady positions will produce very poor flowering.

These plants come from climates where they survive extremely high temperatures in the summer months, so most growth is in spring and fall, with flowering in fall when the weather starts to cool down. In growing season, water in moderation when needed, making sure soil is fairly dried out between waterings. Do not water between late fall and early spring.

The easiest and best way to propagate Stapeliads is from stem cuttings which can be taken virtually throughout the year. Seed is also a method of propagation… – See more at: How to Grow and Care for Stapeliads

Origin

Tridentea longipes is native to South Africa (Richtersveld National Park).

Links

  • Back to genus Tridentea
  • Succulentopedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus

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Tradescantia longipes

Tradescantia longipes, commonly known as the wild crocus [2] (although it is not closely related to plants in the genus Crocus), is a perennial herbaceous plant in the dayflower family. It is found only in the Ozark Mountains of southern Missouri and northern Arkansas in the Midwest United States. A spring blooming species, its flowers can be observed from April to May, typically in its preferred habitat of wooded slopes on rocky hillsides. While most other members of the genus in North America have stems reaching at least a few inches above the soil, the flowering shoots of Tradescantia longipes are borne essentially at ground level. [3] This character is shared with some individuals of Tradescantia hirsuticaulis and Tradescantia virginiana, two closely related species, although both typically have obvious stems. [4] Regardless, Tradescantia longipes can be distinguished from the former with its longer pedicels and bracts without fine hairs, and from the latter by the presence of at least some glandular hairs on the sepals. Furthermore, Tradescantia longipes is a tetraploid, meaning it has four sets of chromosomes, while Tradescantia hirsuticaulis is diploid with only two sets. Tradescantia virginiana occurs in both diploid and tetraploid forms, although it is consistently tetraploid where its range overlaps with Trandescantia longipes. [5]


Apparently Secure (NatureServe) [1]

A phylogenetic study based on the chloroplast DNA regions of trnL-trnF and rpL16, two commonly used gene regions for determining relationships, was unable to convincingly resolve the recent history of the evolution of Tradescantia longipes, but does suggest that it is closely related to the "erect Tradescantia" (series Virginianae), which includes most of the other North American species. [6]

Tradescantia longipes can be grown as an ornamental plant for its showy flowers. It is considered especially suitable in rock gardens or native plant gardens, but may be grown in most situations so long as partial shade is provided. It is considered tolerant of nutrient poor soils, but prefers soils that are acidic, medium-moist, and well-drained. The plants grow in clumps that can be divided as desired. The leaves tend to die back after flowering ceases, and it is thus recommended that the plant be cut back to encourage new growth and potential re-flowering in the autumn. [7]

  1. ^"Tradescantia longipes". NatureServe Explorer. NatureServe . Retrieved 2014-04-27 .
  2. ^
  3. "Tradescantia longipes". Natural Resources Conservation Service PLANTS Database. USDA . Retrieved 14 December 2015 .
  4. ^
  5. Faden, Robert (2006). "Tradescantia longipes". In Flora of North America Editorial Committee, eds. 1993+ (ed.). Flora of North America online. 22. New York & Oxford: Oxford University Press . Retrieved 2014-04-26 .
  6. ^
  7. Timme, S. Lee H. Faden, Robert B. (1984), "Tradescantia longipes Anderson & Woodson (Commelinaceae) in the Southeastern United States", Castanea, 49 (2): 83–85
  8. ^
  9. Anderson, Edgar (1954), "A Field Survey of Chromosome Numbers in the Species of Tradescantia Closely Allied to Tradescantia Virginiana", Annals of the Missouri Botanical Garden, 41 (3): 305–327, doi:10.2307/2394588, JSTOR2394588
  10. ^
  11. Hertwick, Kate L. H. Pires, J. Chris (2014), "Systematics and Evolution of Inflorescence Structure in the Tradescantia Alliance (Commelinaceae)", Systematic Botany, 39 (1): 105–116, doi:10.1600/036364414X677991, S2CID86373811
  12. ^
  13. Missouri Botanical Garden Plant Finder: Tradescantia longipes, Missouri Botanical Garden , retrieved 2014-04-26

This Commelinales-related article is a stub. You can help Wikipedia by expanding it.


Tridentea

Tridentea is a genus of succulent plant in the family Apocynaceae, endemic to southern Africa. [1] [2] [3]

Tridentea
Tridentea gemmiflora
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Apocynaceae
Subfamily: Asclepiadoideae
Tribe: Ceropegieae
Genus: Tridentea
Haw.

Tridentea was first described as a genus in 1812, and its name refers to the three "teeth" on each interstaminal segment of its flower ("tri-" = three "dentis" = teeth). It was subsequently split, and the genus Tromotriche was created for the ten species which were separated.

Tridentea stems are typically smooth, soft and appear as roughly four-edged in cross section. The four angles are marked by rows of low tubercle mounds. In young growth, each tubercle bears a small splayed leaf-remnant. These fall off with time though. Each leaf remnant is always surrounded by several minute, fat hairs.

Tridentea flowers are flattened, star-shaped, and usually brightly coloured. The most common colouring is a mixed mottling of greenish-yellow with purple. Their inside is usually densely papillate. Flowers appear on minute inflorescences, and each stem bears only one inflorescence, from the stem base.

  1. Tridentea aperta(Masson) L.C. Leach - southern Africa
  2. Tridentea choanantha(Lavranos & Harry Hall) L.C. Leach - southern Africa
  3. Tridentea dwequensis(C.A. Lückh.) L.C. Leach - southern Africa
  4. Tridentea gemmiflora(Masson) Haw. - southern Africa
  5. Tridentea herrei(Nel) L.C. Leach - southern Africa
  6. Tridentea jucunda(N.E. Br.) L.C. Leach - southern Africa
  7. Tridentea longii(C.A. Lückh.) L.C. Leach - southern Africa
  8. Tridentea longipes(C.A. Lückh.) L.C. Leach - southern Africa
  9. Tridentea marientalensis(Nel) L.C. Leach - southern Africa
  10. Tridentea pachyrrhiza(Dinter) L.C.Leach - southern Africa
  11. Tridentea parvipuncta(N.E. Br.) L.C. Leach - southern Africa
  12. Tridentea peculiaris(C.A. Lückh.) L.C. Leach - southern Africa
  13. Tridentea pedunculata(Masson) L.C. Leach - southern Africa
  14. Tridentea ruschiana(Dinter) L.C. Leach - southern Africa
  15. Tridentea umdausensis(Nel) L.C. Leach - southern Africa
  16. Tridentea virescens(N.E. Br.) L.C. Leach

Tridentea baylissii, syn of Tromotriche baylissii

Wikimedia Commons has media related to Tridentea .

  1. ^Tropicos
  2. ^ Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Memoirs of the Botanical Survey of South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2).
  3. ^ Leach, Leslie Charles. 1978. Transactions of the Rhodesia Scientific Association 59(1): 3-5
  4. ^The Plant List, Tridentea

This Apocynaceae article is a stub. You can help Wikipedia by expanding it.


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