Sempervivum

HEUFFELII   Schott, 1852

Synonyms :

Diopogon heuffelii  (Schott) Jordan & Fourreau (1868) / Jovibarba heuffelii  (Schott) A.Löve & D.Löve (1961)

Sempervivum hirtum  Sibthorp & Smith (1806) 

Sempervivum patens  Grisebach & Schenk (1852) / Sempervivum hirtum ssp. patens  (Grisebach & Schenk) Stojanoff & Stefanoff (1924) / Sempervivum heuffelii var. patens  (Grisebach & Schenk) H.Huber (1958) / Jovibarba heuffelii ssp. patens  (Grisebach & Schenk) Holub (1973) / Jovibarba heuffelii var. patens  (Grisebach & Schenk) P.Mitchell (1983)

Diopogon stramineus  Jordan & Fourreau (1868) / Sempervivum stramineum  (Jordan & Fourreau) Baker (1874) / Sempervivum kopaonikense  Pancic (1874) / Jovibarba heuffelii var. kopaonikensis (Pancic) P.Mitchell (1983)

Sempervivum reginae-amaliae  Baker (1877) 

Sempervivum stramineum  Nyman (1879) 

Sempervivum heuffelii var. glabrum  Beck & Szyszylowicz (1888) / Jovibarba heuffelii var. glabra  (Beck & Szyszylowicz) hort. (s.a.) / Sempervivum glabrum  (Beck & Szyszylowicz) A.Berger (1930) / Sempervivum patens var. glabrum  (Beck & Szyszylowicz) Rohlena (1942) / Jovibarba heuffelii sp. glabra  (Beck & Szyszylowicz) Holub (1967)

Sempervivum heuffelii var. albanicum  Kitanov (1948)

Sempervivum heuffelii var. bulgaricum  Cheshmedjiev (1969) / Diopogon heuffelii var. bulgaricus  (Cheshmedjiev) H.Jacobsen (1975)

Sempervivum velenovskyi  Cheshmedjiev (1969) / Jovibarba velenovskyi  (Cheshmedjiev) Holub (1973) / Diopogon velenovskyi  (Cheshmedjiev) H.Jacobsen (1975)

 

Distribution : Eastern Europe (mountains of the Balkan peninsula); calcicole.

 

 

Description (according to 't Hart, Bleij & Zonneveld IHSP, 2003) :

 

Pubescent or glabrous, with a thick, shortly branched or lobed rootstock.

 

Rosettes flattish, open, 3 – 12 m in diameter, reproducing vegetatively by sessile offsets around the centre.

 

Leaves oblong-obovate, spinose-mucronate, with stiff, often deflexed cilia, both faces convex, spreading, light, dark or glaucous green, sometimes with white margins, 20 - 60 x 10 – 15 mm.

 

Flowering branches 10 - 20 cm, often glabrous.

 

Leaves with broad clasping base, lanceolate, acuminate, purple-tipped.10 - 30 mm.

 

Inflorescence dense cymes with 3 forked cincinni.

 

FIowers 6- (to 7-) merous, sepals connate for up to 2.5 mm, linear-lanceolate, acute, greenish-yellow, often red-tipped, erect, 6 - 10 mm, petals oblong-obovate, ususally tricuspidate, ciliate, scarcely fimbriate, carinate, yellow or yellowish white, erect, 10 - 12 mm, filaments pale yellow, anthers deep yellow.

Cytology : 2n = 38

 

Variable in the degree of pubescence as well as in the size and coloration of the leaves. The glabrous form appears to be more common. A glabrous form with connate cilia was described as S. velenovskyi.

 

Plant in cultivation in the Netherlands :

 

Photos Harmen Blumers


Plant in cultivation in Belgium :
Photo Olivier Legros


Sempervivum heuffelii 'Schwarzer Peter' - in cultivation in Belgium :
Photo Alain Letroye

« back