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Thelocactus buekii (La Escondida, Nuevo León)
Flat reddish stem with bright purple
flowers in early summer. |
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Description:
Solitary , depressed to globose.
Stem: Flat with indistinct ribs and completely
divided into broad tubercles,
glaucous green to dark brown or magenta, 5-22 cm
tall,11-16 in diameter ; tubercles 1.5-2.5 cm long;
Spines: 3 to 7 grey to reddish central vertical spines, up to 2
cm; 7 to 12 radials.
Root system: Fat underground tap root.
Flowers: Bright purple diurnal , up to 8 cm wide, in early
summer.
T. buekii and matudae are sharply distinguished from T.
tulensis, for the different seed micro-morphology.
• buekii (Typical) short tubercles, few spines and small
stem
• matudae longer tubercles, higher spine number and the
larger flowers.
• jarmilae smaller size and flowers.
• santaclarensis with rose flowers.
Cultivation:
Easy to cultivate. Water moderately from
Spring to Autumn. Keep dry in winter, can tolerate frequent moderate
frost, above approx -7C, Sun Summer grower needs full sun
exposures.
Reproduction: Nearly always from seed, since the plant rarely
produces plantlets.
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Photo of conspecific taxa,
varieties, forms an cultivars of
plants belonging to the
Thelocactus bueckii/matudae/tulensis
complex:
Note: The different variety of this
Taxon are not clearly
differentiated and intermediate/intergrading form are also present in
habitat.
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Family:
Cactaceae
(Cactus Family)
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Scientific name:
Thelocactus buekii
(=bueckii) (Klein) Britton & Rose
Published in: Cact.
4: 8 (1923).
Origin: Mexico (Nuevo León)
at 800 to 1000 m elevation.
Habitat: Matorral xerofilo on limestone and,
rarely, gypsum hills.
Conservation status: Listed in
CITES appendix 2.
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Synonyms:
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Echinocactus buekii Klein ('buckii'),
Published in: Gartenflora 8: 257 (1859).
- Thelocactus tulensis
var. buekii (Klein) E.F. Anderson, Bradleya 5: 65 (1987).
- Thelocactus
tulensis ssp. buekii
(Klein) N.P. Taylor, CCI 5:14 (1998).
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Thelocactus buekii ssp.
jarmilae Halda & Horacek, Acta Mus. Richnov. Sect. natur. 7:
38 (2000).
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Thelocactus matudae Sanchez-Mej. &
Lau, Cact. Suc. Mex. 23: 51-52 (1978).
- Thelocactus buekii
var. matudae (Sanchez-Mej. & Lau) E.F.
Anderson, Bradleya 5: 66 (1987).
- Thelocactus tulensis
ssp. matudae (Sanchez-Mej. & Lau)
N.P. Taylor, CCI 5: 14 (1998).
- Thelocactus buekii
ssp. matudae (Sanchez-Mej. & Lau) Mosco
& Zanovello, Bradleya 18: 62 (2000).
- Thelocactus
santaclarensis Halda, Kupcak & Sladkovsky, Acta Mus. Richnov.
Sect. natur. 7: 39 (2000).
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Grey to reddish vertical spines. |
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Cultivation and Mail Sale 