Rock Garden Plants
Umbilicus horizontalis (Guss.) DC.  
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FamilyCRASSULACEAE
Genus speciesUmbilicus horizontalis (Guss.) DC. 
SynonymsCotyledon horizontalis Guss.
 Umbilicus maroccanus Gand.
 Umbilicus rodriguezii Gand.
Habitatshady rocks
Descriptionlower leaves orbiculate, peltate, convex, sinuate, stem leaves dense, linear-aristate, flowers horizontal in long, compact spike, corolla tubular, lobes acute
Size10-15cm
Colordark yellow
Bloomsummer
Ca
Typetuft
Cultivationshady, humous, rock crevices
alpine house, humous, gravelly soil, shade
Propagationseed in spring, uncovered, germ. 1-3 months, 18-21°C
division in spring; cuttings in late spring and late summer
Territory Europe
     Southwestern Europe (Baleares , Corse , Sardegna , Spain )
     Southeastern Europe (Albania , Bulgaria , Greece , Italy , Kriti , Sicilia , Yugoslavia )
Africa
     Northern Africa (Algeria , Egypt , Libya , Morocco , Tunisia )
     Macaronesia (Azores , Canary Is. , Madeira , Selvagens )
Asia-Temperate
     Western Asia (East Aegean Is. , Iran , Lebanon-Syria , Sinai , Turkey )
     Arabian Peninsula (Gulf States , Saudi Arabia)
BibliographyPlants of the World online powo.science.kew.org
International Plant Names Index www.ipni.org
Comments

CRASSULACEAE

Umbilicus horizontalis (Guss.) DC., Prodr. [A.P.de Candolle] 3: 400 (1828)

Basionym:
Cotyledon horizontalis Guss., Ind. Sem. Hort. Boccad. 4 (1826)

Synonyms:
Cotyledon umbilicusveneris horizontalis (Guss.) Batt.
Cotyliphyllum horizontale (Guss.) Link
Umbilicus rupestris horizontalis (Guss.) O.Bolós & Vigo

Cotyledon peltata J.C.Wendl.
Cotyledon pendulina Batt.
Umbilicus maroccanus Gand.
Umbilicus rodriguezii Gand.

s. Europe, n. Africa, Macaronesia, w. Asia, Arabian Peninsula
12 BAL COR SAR SPA 13 ALB BUL GRC ITA KRI SIC YUG 20 ALG EGY LBY MOR TUN 21 AZO CNY MDR SEL 34 EAI IRN LBS SIN TUR 35 GST SAU

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