Sempervivum
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CILIOSUM  Craib, 1914

Synonyms :

Sempervivum leucanthum var. ciliosum  (Craib) Hayek (1924) / Sempervivum borisii subvar. ciliosum  (Craib) Hayek (1924)

Section Sempervivum

Distribution : S Balkans

Description (according to Praeger, 1932, and 't Hart, Bleij & Zonneveld in IHSP, 2003) :

Rosettes depressed-globose, closed or half open, 2 - 5 cm in diameter.

Stolons hairy, slender, to 13 cm, at first leafy.

Leaves imbricate, oblong-lanceolate to oblong-oblanceolate, both faces convex, 7 - 10 (-25) x 3 - 4 (-6) mm, acute to acuminate, strongly incurved, light green to reddish or reddish-brown, pubescent on both faces, margins with rather stiff spreading cilia to 4 mm, becoming longer towards the tip, interwoven with those of adjoining leaves.

Flowering branches 4 - 12 cm, erect, cauline leaves 3 x 6 - 7 mm, oblanceolate, acute, somewhat wider than in the rosettes, densely glandular pubescent.

Inflorescences compact cymes with 3 forked cincinni, bracts small, narrow, densely glandular pubescent.

Flowers 9- to 14- merous, 1.6 - 2.5 cm in diameter, subsessile, sepals connate for up to 3.5 mm, glandular hairy with hairs of different length, acute, reddish brown, sometimes purple at the tip, 5 - 7 mm, petals 10 - 12 mm long, linear-lanceolate, acute to acuminate, greenish-yellow, glandular-pubescent all over, styles glabrous, to 4 mm.

Flowering time : July                                                                                                                                                    

Cytology : 2n = 34

 

Two subspecies :

Sempervivum ciliosum ssp. ciliosum

Sempervivum ciliosum ssp. octopodes  (Turill) Zonneveld, 1998

See also Alan C. Smith, The Genus Sempervivum and Jovibarba, 1980




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