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Small specimens covered with short and flattened spines and
yellow flowers,
this species has been named after J. Lee.
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Description: G. leaanum is a small cactus that usually grows
in clumps.
Stems: Depressed-globular to globular, blue-green, up to 8
cm in diameter.
Ribs: 15, divides in ± hexahedral mounds.
Central spine: None or sometimes one straight rigid.
Radial spines: Approximately 11, flat and bent against the stem,
up to 1.2 cm long.
Flowers: Near the apex, yellow, yellowish-white, or
yellowish-green, 5-6 cm wide and long and appear
recurrently from April to autumn.
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Cultivation: It is a summer
grower species that offers no cultivation
difficulties. Water regularly in summer (but do not overwater ).
Keep rather dry in winter.
Feed with a high
potassium fertilizer in summer.
Hardy as low as -5° C (or less)
if kept dry.
Sun Exposure: Light shade.
Propagation: Direct sow after
last frost or by planting offsets.
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Family:
Cactaceae (Cactus
Family)
Conservation status: Listed in
CITES appendix 2.
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Scientific name: Gymnocalycium leeanum (Hooker) Britton
& Rose,
Published in: The Cactaceae 3: 154, 1922
Common name: Yellow chin-cactus
Origin: Argentina
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Synonyms:
- Gymnocalycium reductum subsp. leeanum
(Hooker) Papsch,
Gymnocalycium 13(3):363-372, 2000
- Gymnocalycium leeanum v. brevispinum
Backeberg,
Cact. Succ. J. (U.S.) 23(3): 87, 1951
- Gymnocalycium leeanum var. netrelianum
(Monville ex EA.C. Weber) Backeberg,
in: Backeberg & Knuth: Kaktus-ABC: 290, 1936.
Gymnocalycium leeanum var. roseiflorum Y. Ito,
in: Explanatory Diagram
of Austroechinocactinae: 199 + 293, 1957
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Cultivation and
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