HEUFFELII Schott, 1852
Synonyms :
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 :
Plant in cultivation in Belgium :
Sempervivum heuffelii 'Schwarzer Peter' - in cultivation in Belgium :
