CHRYSANTHUM  (Boissier) 't Hart, 1995

Synonyms :

Umbilicus chrysanthus  Boissier & Heldreich ex Boissier (1849) / Cotyledon chrysantha  (Boissier) Bornmüller (1914) / Sedum chrysanthum  (Boissier) Hamet (1929) / Rosularia chrysantha  (Boissier & Heldreich ex Boissier) Takhtajan (1953)

Sedum chrysanthum var. genuinum  Hamet (1929)

Distribution : SW and S Turkey, 1400 - 2500 m.



Description (according to 't Hart & Eggli in IHSP, 2003) :


Caudex absent, with slightly thickened taproots.


Rosettes ± depressed-globose, 1.5 - 3 cm in diameter, clump-forming with sessile or short-stalked offsets.


Leaves oblong to narrowly elliptic, fleshy, fresh green (pale ochre-brownish when dry), mostly densely glandular-hairy.


Inflorescences terminal lax panicles, 5- to 50-flowered.


Flowers tubular-campanulate to narrowly funnel-shaped, 10 - 14 mm, outer parts glandular-hairy, petals united for 1/3 to 2/5, ivory-white to pale yellow, venation concolorous or pale to dark reddish.


Cytology : 2n = 70, 84


Frequently encountered in cultivation under the incorrectly applied name Rosularia pallida (see comment for P. aizoon).

Ssp. uludaghense Kaynak et al. has been published in Ann. Bot. Fennici 46: 456-458, 2009.

Prometheum spec. Sandras Dag is a - slightly different - local form of P. chrysanthum.

Photos Ray Stephenson

Photos David Sorin

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