Sempervivum
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CAUCASICUM  Ruprecht ex Boissier, 1872

Synonyms :

Sempervivum tectorum ssp. caucasicum  (Ruprecht ex Boissier) Berger (1930)

Sempervivum flagelliferum  Fischer in sched. (s.a.) (nom. inval.)

Sempervivum vermiculare  Gueldenstaedt (1787)

Sempervivum tectorum  Bieberstein (1808) (nom. illeg.)

Sempervivum montanum  C.A.Meyer (1831) (nom. illeg.)

Sempervivum tectorum  Eichwald (1833) (nom. illeg.)

Sempervivum caucasicum var. gracile  Gurgenidze (1972)

Section Sempervivum

Distribution : Caucasus (Georgia, Azerbaidzhan, Russia [Dagestan]); sandy and calcareous soils, schistose rocks, in alpine and subalpine regions, 1300 - 2600 m.

 

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

Rosettes rather open, 3 - 5 cm in diameter.

Stolons short and stout.

Leaves spatulate, strongly mucronate, glabrous to slightly pubescent, green with a small dark brown tip, ± 20 x 8 mm wide, ± 3 mm thick.

Flowering branches 12 - 20 cm, shortly glandular-pubescent, leaves lanceolate, acute, flushed with red, 20 - 50 mm.

Inflorescences flew- to many-flowered, corymbiform, bracts linear, acute, glandular-pubescent.

Flowers 12- to 14- merous, sepals connate for up to half of their length, lanceolate, acute, petals linear-lanceolate, acuminate, shortly glandular-pubescent, rose-red with purple stripes, 2 - 2.5 x as long as the calyx, filaments lilac, anthers reddish.

The type specimen has leaves that are glandular-pubescent.

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




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