A spikelet (PO:0009051) that is part of the ear inflorescence (PO:0020136) and bears a single ear floret (PO:0006354) at maturity. [source: GR:Pankaj_Jaiswal, PMID:12015291, POC:Laurel_Cooper]
Comment
The ear spikelet forms with two ear florets (PO:0006354), but the lower one aborts during development.