Sedum
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LAXUM ssp. LAXUM

Synonyms :

Sedum laxum ssp. perplexum  Clausen (1942)

Sedum laxum ssp. latifolium  Clausen (1942)

 

Distribution : Western USA (South western Oregon : Rogue River, north western California); mostly on serpentine, to 1220 m.

 

 

Description (by 't Hart & Bleij in IHSP, 2003) :

 

Leaves spatulate or oblanceolate, 10 - 50 x to 17 mm, much longer than wide, glaucous.

 

Inflorescences : Flowering branches 15 - 26 (-40) cm, leaves obtuse, not clasping the stem, pedicels of basal flowers to 4 mm.

 

Flowers : Sepals 3,5 - 5,1 mm, petals pink or white, 9 - 11 mm, anthers red or yellow.

 

Cytology: 2n = 30

 

Ray Stephenson (Sedum, Cultivated Stonecrops, 1994, p 201) :

Sedum laxum ssp. laxum has an inflorescence that is not reflexed in bud though branches of the inflorescence are curved in towards each other. Leaves of this subspecies are glabrous, spathulate, and those of the inflorescences are narrow. Flowers are pink, deepening in shade below, with red anthers. This subspecies comes mostly from Rogue River Valley, southern Oregon, and adjacent California from very low altitudes to over 1200 m (3900 ft). 

Note :

See also A review of Sedum section Gormania (Crassulaceae) in western North America, in Phytotaxa 368 (1): 1-61, 2018.


On Serpentine.

10 km S Galice, Oregon :








Photos Ray Stephenson




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