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First White Cactus Flower 0f Tucson's 2014 Summer Monsoon Season In My Desert Garden.

 

I have forgotten the name of this multi-stalked cactus plant. Please let me know if you recognize it.

 

I counted about a dozen more buds. One started opening soon after this flower closed...

 

A neighbor who liked my growing Sonoran Desert Garden brought this plant to me when it was very small about 7 or 8 years ago. Since then, I have dug up single small stalks and gave them to other people walking by who expressed an interest...;)

 

After looking at lots of photos, here's what I think it is:

 

Category: Echinopsis spachiana

 

 

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From Wikimedia Commons, the free media repository

 

Vernacular names

English: Golden torch, Torch cactus, White torch cactus

APG III Classification: Domain: Eukaryota • (unranked): Archaeplastida • Regnum: Plantae • Cladus: angiosperms • Cladus: eudicots • Cladus: core eudicots • Ordo: Caryophyllales • Familia: Cactaceae • Subfamilia: Cactoideae • Tribus: Trichocereeae • Genus: Echinopsis • Species: Echinopsis spachiana (Lem.) Friedrich & G.D. Rowley (1974)

 

Note:

This species has recently been renamed Soehrensia spachiana

(Lem.) Schlumpb. (2012).

commons.wikimedia.org/wiki/Category:Echinopsis_spachiana

 

IMG_1575 - Version 2

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