tree of all seeds (Harvisptokhm), which grows in the middle of the sea Vouru-kasha; the seeds of all plants are on it. There is a godlike bird, the Sinamru [simurgh], sitting on that tree; whenever he flies off the tree, there grow out of it a thousand boughs; whenever he alights on it, there break a thousand boughs, the seeds of which are scattered about, and rained down on the earth by Tishtar (Tishtrya), the rain-god. http://www.avesta.org/vendidad/vd5sbe.htm