lemma sterile lemma A flower bract in the position of a lemma, but not enclosing floral organs. An undeveloped androecium or gynoecium may or may not be detectable. If you are annotating to this structure for Zea mays or other grasses, please also add an annotation to the corresponding spikelet type, if known. Choose the most specific term possible from: ear spikelet (PO:0006320), ear pedicellate spikelet (PO:0006348), ear sessile spikelet (PO:0006349), tassel spikelet (PO:0006309), tassel pedicellate spikelet (PO:0006312), tassel sessile spikelet (PO:0006311). PO:0006029 PO:0009040 empty glume (related) lemma est&#233ril (Spanish, exact) plant_anatomy 不稔外頴 (Japanese, exact)