plants.usda.gov/java/profile?symbol=PIVI2 PIVI2 plants.usda.gov/java/profile?symbol=PIVI2 Pinus virginiana PIVI2 http://plants.usda.gov/java/profile?symbol=PIVI2 Pinus virginiana USDA Plants Database USDA Plants Database PIVI2 Pinus virginiana USDA Profile http://plants.usda.gov/java/profile?symbol=PIVI2 PIVI2 http://plants.usda.gov/java/profile?symbol=PIVI2 PIVI2