TECTORUM var. TECTORUM
Description (according to Praeger, 1932, and IHSP, 2003) :
Rosettes usually large, open, flattish, (3-) 5 - 7 (-20) cm in diameter, offsets strong, stolons stout, to 4 cm, sparingly leafy when young.
Leaves glabrous or shortly glandular-pubescent, green and sometimes somewhat glaucous, variably tinged with red, usually with a purple tip, oblong-lanceolate to obovate, 20 - 60 x 10 -15 mm, with a stout pungent mucro, both sides convex (rather flat above), cilia conspicuously white.
Inflorescences : Flowering branches stout, 20 - 50 cm, shaggy with white hairs, leaves ovate-lanceolate, acute, pubescent in the upper part of the stem, with cilia longer than the pubescence. Inflorescences large, dense, flattish or thyrsoid, with 40 to 100 flowers and more, bracts linear, acute, hairy, buds ovoid, conspicuously pointed.
Flowers 12- to 16-merous, ± 2,5 cm in diameter, sepals ± 8 mm, hairy, connate for up to 4 mm, acute, petals 9 - 12 x ± 2 mm, linear-lanceolate, acute, ciliate and pubescent below, whitish or purplish with red lines, giving a purplish effect, filaments bright red-purple, anthers red-orange.
Compare Gérard Dumont : http://stalikez.info/fsm/semp/5m.php