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A perennial thistle-like herb with a rigid stem. Spiny, silvery-green leaves grow 4 per node. Flowers are blue or purplish. Two seeds grow in each pod.
Sandy desert wadis ~ this one spotted in Wadi G'Nai, Dahab
Lat: 28.46, Long: 34.45
Spotted on May 1, 2011 Submitted on Mar 12, 2012