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Cereus denudatus (Link & Otto) Pfeiff.
Enum. Cact. 73, 1837
Family: CACTACEAE

Accepted Scientific Name: Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler
Taschenb. Cactuslieb. 2ed.: 48 +124 (1844) [ et Pfeiff. in Pfeiff. & Otto, Abbild. & Beschr. Bluh. Cact. ii. sub t. 1 (1845), in adnot. ] Mittler

Cereus denudatus (Gymnocalycium denudatum) Photo by: Valentino Vallicelli
This species has nearly armless spines flattened against body , looking like a bunch of white spiders crawling on a cactus.

Synonyms:

See all synonyms of Gymnocalycium denudatum
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Accepted name in llifle Database:
Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler
Taschenb. Cactuslieb. 2ed.: 48 +124 (1844) [ et Pfeiff. in Pfeiff. & Otto, Abbild. & Beschr. Bluh. Cact. ii. sub t. 1 (1845), in adnot. ]
Synonymy: 14 Accepted name in llifle Database:
Gymnocalycium denudatum subs. angelae (Mereg.) Prestlé
Gymnocalycium 17(2): 577. 2004 [May 2004]
Synonymy: 2 Accepted name in llifle Database:
Gymnocalycium denudatum subs. angulatum Prestlé
Gymnocalycium 17(2):573, 2004

Accepted name in llifle Database:
Gymnocalycium denudatum var. anisitsii hort., Kreuz.
Verzeichnis Amer. Sukk. Rev. Syst. Kakteen 13, 1935

Accepted name in llifle Database:
Gymnocalycium denudatum var. argentinense F.Haage
Kakteen-Peisverzeichnis: 14, 1928

Accepted name in llifle Database:
Gymnocalycium denudatum var. argentinense Y.Itô
Cactaceae [Itô] 378, 1981 later omonym, nom. illeg. (Art. 53.1)

Accepted name in llifle Database:
Gymnocalycium denudatum var. backebergii Pazout
Friciana 3(15): 6, 1963, nom. inval. (Art. 37.1)

Accepted name in llifle Database:
Gymnocalycium denudatum var. boliviensis hort.
Catalog name. Pubbl. in Schneekloth List

Accepted name in llifle Database:
Gymnocalycium denudatum var. brachyanthum hort.
Catalog name. Pubbl. in Schneekloth List

Accepted name in llifle Database:
Gymnocalycium denudatum var. brasiliensis hort.
Catalog name. Pubbl. in Uhlig seed list 1992/93

Accepted name in llifle Database:
Gymnocalycium denudatum var. flavispinum (Mundt in Schelle) Y.Itô
170, 1957 nom. inval. (Art. 33.2)
Synonymy: 2 Accepted name in llifle Database:
Gymnocalycium denudatum var. grandiflorum hort.
Catalog name. Pubbl. in Schneekloth List

Accepted name in llifle Database:
Gymnocalycium denudatum var. montanum subv. staminosum Prestlé
Manuskript und Protokoll, Eugendorf n.n. 1996

Accepted name in llifle Database:
Gymnocalycium denudatum var. montanum Prestlé
Manual (Gray), ed. 2. n.n. 1996

Accepted name in llifle Database:
Gymnocalycium denudatum subs. necopinum Prestlé
17(2):575, 2004

Accepted name in llifle Database:
Gymnocalycium denudatum var. necopinum Prestlé
n.n. 1996

Accepted name in llifle Database:
Gymnocalycium denudatum var. pentacanthum hort.
published in Uhlig Catalogue n.n. (= horstii?)

Accepted name in llifle Database:
Gymnocalycium denudatum var. roseum Hildm.
Atlas Kaktusu 15, 1986

Accepted name in llifle Database:
Gymnocalycium denudatum var. terwinianum hort.
Catalogname, published in Schneekloth-Liste

Cultivars (1):
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Common Names include:
ENGLISH: Spider Cactus (Referring to the shape of the spider-like spines)

Subspecies, varieties, forms and cultivars of plants belonging to the Gymnocalycium denudatum group

  • Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler: has a globular usually unbranched stem with glossy dark-green epidermis and 5(-8) flat, rounded ribs, with poorly developed tubercles. Distribution: Brazil (Rio Grande do Sul), Argentina (Corrientes, Misiones) Paraguay [possibly] and Uruguay.
  • Gymnocalycium denudatum subs. angelae (Mereg.) Prestlé: has smaller flowers with red throat and a more opaque and pale green colour of the stem. Distribution: San Martin department, Corrientes, Argentina (It is separated from Gymnocalycium denudatum by hundreds of kilometres).
  • Gymnocalycium denudatum cv. Jan Suba hort.: is said to be an hybrid between Gymnocalycium denudatum and Gymnocalycium baldianum. It has the stem and spination of the former and the lovely red or deep pink flower colour of the latter.
  • Gymnocalycium megalothelon (Sencke ex K.Schum.) Britton & Rose: is a solitary flattened-globular cactus with a five ribbed appearance and more raised tubercles. The flowers are white and double petaled. Distribution: Argentina (San Luis).

28006 alexander Alexander Arzberger
Cereus denudatus (Gymnocalycium denudatum) Photo by: Alexander Arzberger
8666 valentino Valentino Vallicelli
Cereus denudatus (Gymnocalycium denudatum) Photo by: Valentino Vallicelli

17343 valentino Valentino Vallicelli
Cereus denudatus (Gymnocalycium denudatum) Photo by: Valentino Vallicelli
8667 valentino Valentino Vallicelli
Cereus denudatus (Gymnocalycium denudatum) Photo by: Valentino Vallicelli

8665 valentino Valentino Vallicelli
Cereus denudatus (Gymnocalycium denudatum) Photo by: Valentino Vallicelli
18041 valentino Valentino Vallicelli
LB811 (Collector: C. A. Ludwig Bercht) Pedras Altas, 3km from Nototcactus scopa v. xicoi, Rio Grande do Sul, Brazil (Gymnocalycium denudatum) Photo by: Valentino Vallicelli

17390 valentino Valentino Vallicelli
Gymnocalycium denudatum GF32 Cacapava do Sul to Lavras do Sul km 22, Rio Grande do Sul, Brazil. (Gymnocalycium denudatum) Photo by: Valentino Vallicelli
8668 valentino Valentino Vallicelli
Locality: Artigas. (Gymnocalycium denudatum) Photo by: Valentino Vallicelli

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