part_of part of part of has_part has part has part develops_from develops from develops from anther primordium stamen anther A collective plant organ structure (PO:0025007) that is the pollen-bearing part of a stamen (PO:0009029). Generally consists of four pollen sacs (microsporangia) in two anther thecas. If you are annotating to anther or one of its parts for Zea mays or other grasses, please also add an annotation to the corresponding floret type. Choose the most specific term possible from: spikelet floret (PO:0009082), tassel floret (PO:0006310), lower floret of pedicellate spikelet of tassel (PO:0006313), lower floret of sessile spikelet of tassel (PO:0006315), upper floret of pedicellate spikelet of tassel (PO:0006314), upper floret of sessile spikelet of tassel (PO:0006316). PO:0006442 PO:0006473 PO:0009066 PO_GIT:297 PO_GIT:70 Poaceae anther (narrow) Zea anther (narrow) antera (Spanish, exact) plant_anatomy 半葯,花粉のう (Japanese, exact) collective plant organ structure pollen sac