Weingartia trollii

Weingartia trollii

Weingartia trollii

Questo è uno dei più vigorosi e più precoci cactus a fiorire. I fiori sono per la maggior parte arancioni o rossi.
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€ 3,43
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Descrizione

Questo è uno dei più vigorosi e più precoci cactus a fiorire.
I fiori sono per la maggior parte arancioni o rossi.

Family: Cactaceae (Cactus Family)

Basionym: Weingartia trollii Oeser, Kuas, 29(6):129, 1978.
In: Kakt.u.a.Sukk. 29:6; 129-131, June 1978

Accepted Scientific name:  Rebutia neocumingii (Backeb.) D. D.R.Hunt 1987 subsp. trollii

Origin:  Collected in the Andes mountains near Tulma south west from Sucre City, Chuquisaca, Bolivia.

Conservation status: Listed in CITES appendix 2.

Synonyms:  

  • Weingartia neocumingii subsp. sucrensis var. trollii (Oeser) Don. comb. nov.
  • Weingartia neocumingii var. trollii
  • Rebutia neocumingii  (Oeser) D.R.Hunt 1997
  • Rebutia trolii
  • Rebutia neocumingii (Backeb.) D. D.R.Hunt 1987
  • Weingartia neocumingii Backeberg 1950
  • Sulcorebutia neocumingii (Bckbg.) Brandt 1979
  • Gymnocalycium neocumingii (Backeb.) P. Hutchison

Note: All the 60 species of genus Weingartia have been transferred to synonymy status under the genus Rebutia; about 45 or so of them as synonyms of two species, R. canigueralii and R. neocumingii. The genus Weingatia was always considered difficult to differentiate from Gymnocalycium, Neowerdermanniana, and Sulcorebutia and its name has had a very eventful history which evidently continues in controversy today.

Rebutia (Weingartia) trollii
This is among the most vigorous and earliest bloomers. Flowers are usually orange or red.

Description: Weingartia (Rebutia) trolli is a heavy bloomer characterized by bright orange to orange-scarlet flowers.
Stem: Usually solitary, globose to short cylindrical up to 10 cm wide, 20 cm tall.
Ribs:16 to 18 tuberculate, often spiraling.
Central spines: 2 to 8 up to 2 cm long.
Radial spines: 16 to 24 yellowish with brown tips, about 1 cm long.
Flowers: Usually orange or red (sometime dull yellow) approx. 2-3 cm. long, 2.5cm in diameter, they are produced (unusually) all over the body of the plant especially in a ring near the very tips of the stems differing from other rebutias in that its flowers appear very near the meristem as opposed to the lower, stem side and base locations of those others. As well, on this and a few other ex Weingartia species, one areole can produce up to 4 flowers.
 Blooming season: The flowers are produced in early summer and remain open for five or six days.

Cultivation: Full sun to light shade, Water regularly in summer but do not overwater. Keep dry or slightly moist in winter at a minimum temperature of 5°C (But Hardy to -4°C or less).
It is better that they are repotted regularly. Repotting will increase size of stems and the number of flowers produced. Repot yearly until reaching about 100 mm in size, then every two or three years will suffice. Repotting is best done at the end of winter but can be done at other times. Do not water for a couple of weeks after repotting to reduce risk of root rot via broken roots.

Propagation: Offsets (seldom available), or seeds