SINFOROSANUM  Reyes, Etter & Kristen, 2017

Type : Etter & Kristen 3128, Mexico, Chihuahua, municipality of Guachochi, Barranca de Sinforosa, along road to Río Guerachi, 1841 m, December 16, 2010.

Etymology : Named for the Barranca de Sinforosa, the type locality.

Distribution : Mexico (Chihuahua : Barranca de Sinforosa and probably more widespread).

Description :

Plant a perennial herb, glabrous, caespitose.

Roots fibrous.

Stems 3 - 5 cm long, ca 1.2 cm in diameter, offshoots with stems up to 8 cm long and ca 5 mm in diameter.

Rosettes 6.5 - 9 cm in diameter.

Leaves rose-coloured, obovate, 2.5 - 3.5 cm long, 1.5 - 2 cm wide, expanding or ascending, pruinose, margin markedly pink, apex cuspidate.

Floral stems subapical, 2 - 4 per rosette, green to pink, pruinose, 7 - 9 cm long, 1.8 - 2.5 mm in diameter.

Inflorescence cymose, bracts lanceolate, 6 - 9 mm long, 3.5 - 5 mm wide, pruinose, slightly pink, 3 - 4 cincinni, with 4 - 7 flowers per peduncle.

Pedicels 3.5 - 4 mm long, ca 1.5 mm in diameter, pruinose.

Sepals 5, unequal, appressed, ascending, lanceolate, 4.5 - 5.6 mm long, 1.7 - 2.5 mm wide, green-reddish, pruinose.

Petals 5, free, white with a slight pink tinge, 7.5 - 8.5 mm long, 3 - 3.5 mm wide, apex reddish, retrorse.

Flowering time in cultivation : April - July.

Sedum sinforosanum is related to S. suaveolens.