Accepted Scientific Name: Rebutia marsoneri Werderm.
Kakteenkunde 1937, 2.
Rebutia krainziana var. albiflora Photo by: Valentino Vallicelli
It is like the species, but with white flowers, and very thin, very short,
snow-white spines set against the dark green body. Very nice!!
Origin and Habitat: Unknown, probably horticultural, but its ancestor is most likely from the Jujuy Province of Argentina.
Synonyms:
See all synonyms of Rebutia marsoneri
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Accepted name in llifle Database:Rebutia marsoneri Werderm.Kakteenkunde 1937, 2.Synonymy: 13
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Common Names include:
ENGLISH: White Gay Crown, White Krainz' Crown Cactus
Description: Habit Clumping globular cactus, up to 7 cm in diameter up to 10 cm tall. It can grow in clumps 10-15 cm wide. The especially notable characteristics of this cactus are its dark stem colour, emphasized by the small, white areoles, and its large, intensely red, yellow-throated flowers reminding one of red daisies.
Stem: Up to 5 cm Globose, dark green, that begins to offset in about its third or fourth year, eventually to make a moderately tight clump with the individual stems standing out a little on their own.
Tubercles: In two downward spirals, in ratio 8:13.
Spines: Small, snow-white, very thin, very short, and soft, but can still poke.
Flowers: A larger crop of pure white flowers, 3.5 cm wide, develops from the base of each head, resulting in a superb display at mid season.
Blooming season: It is usually one of the earliest rebutias to bloom in spring.
Subspecies, varieties, forms and cultivars of plants belonging to the Rebutia marsoneri group
- Rebutia krainziana Kesselr.: Small cactus with dark stem colour, emphasized by the small, white areoles, and its large orange-red flowers, (but also available in shades from dark red, to orange, yellow or white) reminding those of daisies.
- Rebutia krainziana var. albiflora hort.: Plant with pure white flowers, and very thin, very short, snow-white spines set against the dark green body.
- Rebutia krainziana cv. brevispina: is a mutant cultivar with very sort spines and the vestigial leaves in the new growth.
- Rebutia krainziana cv. inermis: The specially notable characteristics of this cactus is its green naked (spine-less) stem that will turn a lovely purple tinge in full sun.
- Rebutia krainziana cv. Inermis Cristata: Unusual crested form with smother shining green epidermis and mauve tones if exposed to sun.
- Rebutia marsoneri Werderm.: Plants usually solitary, depressed globose, with golden yellow to orange flower in spring.
Rebutia krainziana var. albiflora Photo by: Diego Armentano Rebutia krainziana var. albiflora Photo by: Valentino Vallicelli Rebutia krainziana var. albiflora Photo by: Cactus Art Rebutia krainziana var. albiflora Photo by: Valentino Vallicelli Cultivation and Propagation: Full sun to light shade. Water regularly in summer, but do not over-water. Keep dry in winter. Hardy to -4°C.
It is better that they be repotted regularly. Repotting will increase the number and size of stems, and will increase the number of flowers produced. Repot yearly until they reach about 100 mm in size, then every two or three years will suffice. Repotting is best done at the end of winter, but it can be done at other times, too. Do not water for a couple of weeks after repotting, to reduce the risk of root rot via broken roots.
Propagation: Offsets, seeds