Sedum
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DANJOENSE   Ito, Nakanishi & Kokub, 2017

Distribution : Danjo Islands, Japan.

Description :

Biennial herb, fleshy, glabrous.

Roots fibrous adventitious at the  basal node of each branch.

Stem stout, erect with irregular branching, 10 - 25 cm tall.

Leaves mostly alternate, sessile, thick, spatulate or obovate, 1.2 - 3.2 cm long, 0.5 - 1.6 cm wide, apex rounded,, base long, attenuate, margins entire.

Flowering stems fleshy, 10 - 20 cm tall, base ca 5 mm broad, usually yellowish, erect or sprawling with irregular branching at base.

Inflorescences terminal cymes, flowers usually 10 - 22 sparsely distributed per branch.

Flowers : Sepals 4, free, green-yellow, fleshy, equal in size, narrowly triangular, 1 - 3 mm long, 0.8 - 1.2 mm wide, apex round or obtuse, petals 4, bright yellow, lanceolate, 5 - 6 mm long, 1.4 - 1.7 mm wide, apex acuminate, base slightly connate, stamens 8, shorter than petals, 4.8 - 5 mm long, erect at flowering, 2- whorled arranged, anthers oblong, ca 0.5 mm long, red before dehiscence, carpels 4, free, horizontal, connate at the base, gibbous ventrally, 5.5 - 6.5 mm long,  fruits star-shaped, folliclespreading, 6 - 7 mm long,

Flowering time : October - November.

 

This is the new name for the plants hitherto considered Sedum sarmentosum on the Danjo Islands.




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