japanese white pine (pinus parviflora 'glauca'). long shoot and pollen cones closeup

japanese white pine ulleungdo male cone microsporophyll pollen sac shoot stomata stomatal line pinaceae pinus parviflora 039 glauca 'glauca' long cones closeup virtual herbarium belarus flora: focus-stacked closeups wild cultivated plants including flowers leaves fruits intended illustrations botanical manuals