Sedum
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HYPOGAEUM  Reyes, Brachet & González-Zorzano, 2009

Distribution : Mexico (Oaxaca), 2100 m, growing in pine and oak forest.

 

Description :

 

Perennial geophytic plant.

 

Stem subterraneous,  2 – 6 cm long, up to 3.3 mm thick, pink to greenish brown.

 

Roots tuberous, up to 7 cm long, pink to whitish.

 

Leaves sessile, scale-like, lanceolate, 1.5 – 1.9 mm long and 0.44 – 0.7 mm wide, obtuse, glabrous, whitish to pale pink.

 

Inflorescences terminal, up to 10 per plant, 5 – 23 cm tall, 2 – 13 flowers each, producing new plantlets when flowers are spent; leaves on inflorescences 70 – 105, near the base 1.5 – 3.3 mm long, bigger in the upper part : 4 – 15.4 mm long and 0.5 – 1.8 mm wide, subulate to ensiform, apex acute, brilliant green, pilose on upper surface; pedicels 0.3 – 1.2 mm, light green.

 

Flowers : Sepals 5, unequal, 0.95 – 1.10 mm long, appressed to ascending, light green; petals 5,  3 – 3.7 mm long, spreading, light yellow.

 

 

Published in Cactáceas y Suculentas Mexicanas, 2009 - with photos.




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