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Monsonia patersonii DC. syn. Sarcocaulon patersonii (DC.) G.Don; Sarcocaulon rigidum Schinz - Geraniaceae - Boesmanskers, bushman's candle, Buschmannskerze
Subshrub, up to 0.5 m tall; native to Southern Africa (Cape Provinces, Namibia); branches usually more than 10 mm wide; leaf blade narrowly to broadly obovate, 5-26 × 4-16 mm, glabrous; spines thick and straight, 2-5 blunt stalks in axils of spines; petals 15-30 mm long, rose, pale magenta or purple kyffhauser.com
hexadecane-16-olide (dihydroambrettolide)
„… we found comparatively large amounts of hexadecan-16-olide and (Z)-octadec-9-en-18-olide in the smoke of so-called 'Bushman's Candles', waxy remains of Sarcocaulon rigidum found in Namqualand and the Namib desert.“ [Meaningful Scents around the World, Roman Kaiser, Zürich 2006, 146-147]