Sulcorebutia rauschii cv. Esmeralda

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Since 4 Aug 2013

Sulcorebutia rauschii cv. Esmeralda

Family: CACTACEAE

= Sulcorebutia rauschii f. viridermis

Accepted Scientific Name: Rebutia canigueralii
Cact. Succ. J. (Los Angeles) 36: 26, figs. 1964

Sulcorebutia rauschii cv. Esmeralda (Sulcorebutia rauschii f. viridermis) Photo by: Valentino Vallicelli
This is a selected pure green form with black short appressed spines.

Origin and Habitat: Zudañez, Chuquisaca, Bolivia

Synonyms:

Sulcorebutia rauschii f. viridermis hort.

See all synonyms of Rebutia canigueralii

Description: Rebutia canigueraliiSN|5130]]SN|5130]] subs. rauschii f. viridermis|SN|19115]], better known as Sulcorebutia rauschiiSN|10863]]SN|10863]] cv. Green Form, is a morphological form of the variable Rebutia canigueraliiSN|5130]]SN|5130]] subs. rauschii distinguished for the pure green body (not purple-violet). This cactus is indeed beautiful even without its blooms.
Habit: Miniature clustering species (rarely solitary), readily forms clumps of many heads.
Stem: Individual stems 2(4) cm tall, 3(5) cm in diameter. The stem is covered by flat tubercles (5 mm wide) which vary in colour between pale to dark green. In older plants tubercles are arranged in up to 16 spiral line merging in the apex.
Areoles: Long narrow with short white felt.
Spines: 9-11 short black radial spines, 1 to 2 mm long, pointing diagonally and downward, completely flattened against the tubercles, they take the characteristic form of a fish-bone.
Roots: Conical.
Flower: 20-50 mm long, 35-50 mm wide; floral tube funnel-shaped yellowish green with tan coloured scales, tepals deep magenta with a clearer throat.
Fruit: Reddish brown, 4-5 mm wide.
Blossoming time: Late spring.

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Subspecies, varieties, forms and cultivars of plants belonging to the Rebutia canigueralli group

Rebutia canigueralii Cárdenas: Slow growing clustering cactus that may forms clumps of many heads. This is a highly variable species with several forms with light green to purple colouration and small spines. Flowers mostly bicoloured orange, red or purple with a yellow throat, but the amount of red vs. yellow varies widely.
Rebutia canigueralii subs. crispata (Rausch) Donald ex D.R.Hunt: Forms small globular bodies nearly obscured by a variable ivory to golden spination. Spines are pectinated, bristly, flexible and more or less curved. Freely clusters to form large mounds.
Rebutia pulchra Cárdenas: Stems 40-50 mm Ø, dull olive-green with violet. Radials 10-12 yellow/brown, fine 2-4 mm long. Centrals usually absent. Flowers magenta, red or bicoloured. Distribution: Chuquisaca, Bolivia.
Sulcorebutia callecallensis (F.H.Brandt) Pilbeam: has tiny clustering stems, short, pectinate adpressed spines and outstanding bicoloured yellow-red blooms. Distribution: Cerro Calle Calle, Chuquisaca.
Sulcorebutia canigueralii var. applanata (Donald & Krahn) Horáček: has small, dull grey-green stems, rapidly offsetting from the base, Flowers bi-coloured yellw-red or purple. Distribution: Cerro Churuquella, Sucre.
Sulcorebutia frankiana Rausch: has small-bodies with fox-brown spines and pink to magenta flowers. Distribution: Sucre to Los Alamos and adjacent areas, Chuquisaca, Bolivia.
Sulcorebutia gerosenilis ?íha & Arandia: Same as Sulcorebutia crispata v. hertusii.
Sulcorebutia hertusii (Halda & Horáček) Halda & Horáček: Body dark-purple coloured covered by hair-like, white or yellowish, twisted spines.
Sulcorebutia losenickyana Rausch: has bristly, tight, pectinate spines, pointing diagonally and downward, partially interlaced. Whitish with brownish base, but also golden, brown or almost black. Distribution: Chuquisaca and Potosí.
Sulcorebutia pasopayana (F.H.Brandt) Gertel: A small-headed low growing, mound forming, cactus that forms large clumps, sometime with hundreds of heads. The flowers are blood red.
Sulcorebutia rauschii G.Frank: Stems highly coloured in purple with very small dark pectinaded spines. Flowers magenta. Distribution: Zudañez, Chuquisaca.
Sulcorebutia rauschii f. aureispina hort.: This form has short yellow pectinate spines on a mauve body. Distribution: Zudañez, Chuquisaca.
Sulcorebutia rauschii f. cristata hort.: Crested form.
Sulcorebutia rauschii f. violacidermis hort.: Beautiful selected form with nice and distinctive dark violet body. Distribution: Zudañez, Chuquisaca.
Sulcorebutia rauschii f. viridermis hort.: Green form. Distribution: Zudañez, Chuquisaca.
Sulcorebutia roberto-vasquezii Diers & Krahn
Sulcorebutia tarabucoensis Rausch: has globular stems with a long taproot. Radial spines bristly to 10 mm long, cream or yellowish, pectinated. Blooms red or dark magenta. Distribution: Tarabuco, Chuquisaca, Bolivia.
Sulcorebutia tarabucoensis var. aureiflora (Rausch) K.Augustin & Gertel: has yellow or yellow and orange red flowers, grey-green epidermis, and yellow to white spines up to 10 mm long. Distrtibution: Tarabuco and adjacent areas, Sucre, Bolivia. = Sulcorebutia callecallensis.
Sulcorebutia tarabucoensis subs. patriciae B.Bates, Halda, Heřtus & Horáček: Spines yellowish brisly, hairlike. This plant is very similar (if not the same) to Sulcorebutia crispata v. hertusii.

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Bibliography: Major references and further lectures
1) James Cullen, Sabina G. Knees, H. Suzanne Cubey “The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass” Cambridge University Press, 11/Aug./2011
2) David Hunt, Nigel Taylor “The New Cactus Lexicon” DH Books, 2006
3) Edward F. Anderson “The Cactus Family” Timber Press, 2001
4) Anderson E. F.: "The Cactus Family" Timber Press, Portland, Oregon, 2001
5) Ritter Fr.: "Kakteen in Südamerika" Spangenberg, 1980
6) John Pilbeam "Sulcorebutia and Weingartia: A Collector's Guide" Timber Press, 1985
7) E Haustein “Der Kosmos Kakteenfuehrer (the Kosmos Cactus Guide)” Balogh Scientific Books 01 December 1998
8) Cullmann W., Götz E., Gröner G.”Kakteen: Kultur, Vermehrung und Pflege - Lexikon der Gattungen und Arten” Ulmer, Stuttgart, 1984

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Cultivation and Propagation: These mountainous plants have thick taproots and are susceptible to overwatering. They loves a very permeable, coarse mineral soil as well as to be strictly kept dry throughout the winter quiescent period since it is very sensitive to any moisture excesses, To prevent rottenness it is also advisable to surround its root neck by very rough sand or grit, this help a fast water drainage. They requires also an appropriate air circulation and are sometime grafted to avoid root problems. They need to be kept in a cool place during winter rest (at 0-10°C). This is important for the flowers ,as well as for their health. Without this cool winter period, they normally won't get any buds.
Grafted plants are very easy to grow, and are quite frost hardy (-5° C) if kept dry. Needs a full sun exposure ( light shadow my be useful in the hottest summer days)
Propagation: Seed, cutting, grafting.

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Cite this page: "Sulcorebutia rauschii cv. Esmeralda" Text available under a CC-BY-SA Creative Commons Attribution License. www.llifle.com 14 Nov. 2005. 18 May 2025. </Encyclopedia/CACTI/Family/Cactaceae/19117/Sulcorebutia_rauschii_cv._Esmeralda>