Creepers, trees, deciduous herbs, and clean animals, and clarified butter, were created as materials of sacrifice.
वीस्थश्चैव वृक्षांश्च यज्ञार्थं वै तथौषधीः। पशृंश्चैव तथा मेध्यान् यज्ञार्थानि हवींषि च॥