PITTONII Schott & al. 1854
Synonym : Sempervivum braunii Maly (1868) (nom. illeg.)
Section Sempervivum
Distribution : E Alps (Austria : Styria near Kraubath); serpentine rocks.
Description (according to 't Hart, Bleij & Zonneveld in IHSP, 2003) :
Rosettes subglobose, 2.5 - 5 cm in diameter, forming dense tufts.
Stolons slender or stout, 2 - 3 cm.
Leaves crowded, oblong-spatulate to lanceolate-obovate, apiculate, 12 - 25 x 5 - 7 mm, pubescent, greenish, with a conspicuous dark purple or reddish-brown tip, the marginal cilia unequal in length, often with a red gland.
Flowering branches 5 - 15 (-20) cm, leaves imbricate, lanceolate, acute, purple tipped, erect, ± 25 x ± 7 mm.
Inflorescences 3- to 15- flowered cymes with 3 cincinni.
Flowers 9- to 12- merous, 2 - 2.5 cm in diameter, sepals connate for up to 3.5 mm, acute, green, 3 - 7 mm, petals linear-lanceolate or oblong-lanceolate, acuminate, greenish-yellow, 10 - 14 x ± 1 mm, filaments pale yellow, almost glabrous, anthers yellow.
Cytology : 2n = 64
Known from only one locality near Kraubath. Highly endangered due to mining activities.