A native plant cell (PO:0025606) that develops from a microgametophyte vegetative cell (PO:0020099) and forms a tubular extension of the pollen (PO:0025281). [source: POC:Laurel_Cooper, POC:Ramona_Walls]
Comment
Carries the male gametes (PO:0025006) into or near the plant ovule (PO:0020003). May be branched in gymnosperms. See GO for pollen tube (GO:0090406) or pollen tube tip (GO:0090404).