Sedum
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PEDICELLATUM   Boissier & Reuter, 1842

Synonyms :

Sedum villosum ssp. pedicellatum  (Boissier & Reuter) Rivas-Martínez (1963) / Oreosedum pedicellatum  (Boissier & Reuter) Grulich (1984)

Sedum pedicellatum var. lusitanicum  Willkomm ex Mariz (1888) / Sedum pedicellatum ssp. lusitanicum  (Willkomm ex Mariz) Laínz (1968) / Oreosedum pedicellatum ssp. lusitanicum  (Willkomm ex Mariz) Velayos (1989)

Sedum willkommianum  R. Fernandes (1960)

 

Distribution : Central Spain, northern Portugal ; mountains, gravelly places.

 

 

Description (according to IHSP 2003) :

 

Glabrous annual or biennial herbs with erect or ascending often much-branched stems to 8 (-12) cm tall, glaucous or pruinose.

 

Leaves alternate, sessile, terete to subterete, oblong to ovate, 2,5 - 5,5 x 1,5 -2,5 mm, rounded or obtuse, glaucous-green, white-farinose or reddish.

 

Inflorescences lax cymes with 2 to many cincinni, pedicels usually slender, 2 - 6,5 mm.

 

FIowers 5-merous, almost globular in bud, sepals broadly sessile, basally connate, ovate to orbicular, 1,5 - 2,5 mm, obtuse, petals free, elliptic, 2,5 - 4 mm, obtuse to acute, white or pinkish, sometimes with slightly erose margins, filaments white, anthers bright red, rarely yellowish.

 

Cytology: 2n = 22, 28.

 

Closely related to S. andegavense and S. candollei ('t Hart & al. 1999). The 3 species form a comparium and have been classified in Ser. Pedicellata.


In habitat - Miraflores de la Sierra, alt. 1300 m :








S. pedicellatum and S. brevifolium :



Sedum pedicellatum, S. hirsutum and S. brevifolium :



Photos Benoît Albert




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