Pinus rigida = Three-leaved Virginian pine - NYPL's Public Domain Archive Public Domain Search
Pitch Pine (Pinus rigida) in Boston Hopkinton Chelmsford Hingham Middleborough Massachusetts MA at Weston Nurseries
Basic Tree | Tree Identification | Regional and Community Forestry | School of Natural Resources | Unviersity of Nebraska–Lincoln
Pinus rigida (pitch pine) description - The Gymnosperm Database
Pinus rigida- Pitch Pine - Long Island Natives
Maryland Biodiversity Project - Pitch Pine (Pinus rigida)
Pitch Pine (Pinus rigida)
Buy Pinus rigida 'Trooper's Broom' Northern Pitch Pine | Conifer Kingdom
Pitch Pine (Pinus rigida)
Pinus rigida (Black Pine, Hard Pine, Northern Pitch Pine, Pitch Pine, Torch Pine, Yellow Pine) | North Carolina Extension Gardener Plant Toolbox
Pinus rigida / Pitch Pine – One Nature Plant Nursery
File:Pinus rigida drawing.png - Wikimedia Commons
Virginia Tech Dendrology Fact Sheet
Pinus rigida (Black Pine, Hard Pine, Northern Pitch Pine, Pitch Pine, Torch Pine, Yellow Pine) | North Carolina Extension Gardener Plant Toolbox
Pitch Pine, Pinus rigida | Spring 2010 | Articles
Robert Miller: Trees that gave much of the area its name, get reprieve
Pinus rigida - Wikipedia
Pitch Pine (Pinus rigida) – Orleans Conservation Trust
Pinus rigida (pitch pine): Go Botany
Pinus rigida (pitch pine): Go Botany
Pinus rigida (pitch pine) | Tab Tannery | Flickr
Pinus rigida - UDBG
Species Spotlight - Pitch Pine - Edge Of The Woods Native Plant Nursery, LLC
