Ma'anar ƙamus na kalmar "ocotillo" tana nufin shukar hamada da ke kudu maso yammacin Amurka da arewacin Mexico. Itacen yana da dogayen tsiro, sirara, masu kambi, wanda zai iya kaiwa tsayin ƙafa 20, kuma yana fitar da furanni ja masu haske a saman rassansa. Sunan kimiyya na shuka shine Fouquieria splendens, kuma ana san shi da wasu sunaye na yau da kullun kamar su kocin, slimwood, da cactus na inabi. An san shukar don kamanninta mai ban mamaki da kuma ikonta na rayuwa a cikin busasshiyar hamada.