Skandapurana 16.20.65

16.20.65

oṣadhyo yajñiyāścaiva grāmyā raṇyāścaturddaśa ..
vrīhayaśca yavāścaiva godhūmāstvaṇavastilāḥ .. 65 ..

And there are fourteen herbs fit for sacrifice, both cultivated and wild:
Rice, barley, wheat, small grain, and sesame;