NATIVE WOODY PLANTS OF THE UNITED STATES 1Q3 



A large evergreen tree; three-needled; rapid growing, especially in moist 

 soil; extremely drought resistant; scarcely resistant to nre; seedlings, but 

 not older trees, tolerant of shade; susceptible to fungus attack; wood of little 

 commercial value, easily decaying; vitality of seeds transient. 



Observations: California gray squirrel; of slight importance as browse for 

 mule deer. 

 Pinus scopulorum, see Pinus brachyptera. 



Pinus serotina Michx. Pond pine. 



P. riffida serotina (Michx.) Loud. 

 Range : 28, 29, 30. 

 Site : Moist, sun. 



Fruit : Cone ; some open, some remain closed after maturity. 

 A large evergreen tree; commonly three-needled; rapid growing; intolerant 

 of shade; wood heavy, resinous; 56,000 seeds per pound, germination 70-90 

 percent. 

 Stomach records: Bob white. 



Pinus strobiformis Engelm. Mexican white pine. 



Range: 11, 14. 

 Site : Dry, well-drained, sun. 

 Fruit : Cone ; mature in September, seeds completely shed by the middle 



of October. 



A large evergreen tree ; five-needled ; susceptible to blister rust ; seedlings 

 endure moderate shade ; wood little used commercially ; most seed produced at 

 middle elevations; 2,700 seeds per pound. 



Observations: Much eaten by birds and squirrels. 



Pinus strobus L. Northern white pine. 



Strobus iveymouthiana, Opiz., 8. strobus (L.) Small. 

 Range : 21, 22, 23, 24, 27. 

 Site : Well-drained, moist, sun, shade. 

 Fruit : Cone ; mature in July of the second season, seeds discharged 



in September. 



A large evergreen tree ; five-needled ; root system small, shallow ; successful 

 on sandy soils ; commonly attacked by white-pine weevil and blister rust ; wood 

 of great importance commercially ; numerous varieties distinguished in cul- 

 tivation ; 25,000 seeds per pound, germination 67 percent. 



Stomach records: Six species of birds, including bobwhite ; white-tailed deer. 

 Observations: Eight species of birds; a preferred food of red squirrel; moose, 

 snowshoe hare, cottontail rabbit, casually browsed by northern white-tailed 

 deer. 



Finus taeda L. Loblolly pine. 



Range : 19, 20, 22, 25, 28, 29, 30. 

 Site : Dry, well-drained, moist, sun. 

 Fruit : Cone ; opens slowly, seeds shed in late fall and winter, cones 



persist a year longer. 



A large evergreen tree; three-needled; seedlings with a long taproot, older 

 trees with a spreading root system; not commonly found on heavy clay or 

 highly siliceous soils; rapid growing; tolerant of shade in earlier stages, later 

 much less so; susceptible to diseases and insects; wood not durable, valuable 

 commercially ; invades and reforests abandoned fields very rapidly ; 13,000 

 55,000 seeds per pound, germination 25-80 percent. 



Stomach records: Eight species of birds, including bobwhite. 



Pinus torreyana Carr. Torrey pine. 



Range: 5. 



Site: Well-drained, sun. 



Fruit : Cone ; mature in August of the third season, some seed shed in 



September, the rest remaining in the cone for several years. 

 A small to large evergreen tree ; five-needled ; often low, crooked, and sprawl- 

 ing in exposed situations ; apparently intolerant of shade ; wood of no impor- 

 tance commercially because scarce; slow growing; 657 seeds. per pound, prolific 

 annual seeder ; the rarest and with the most restricted range of any American 

 pine. 



Pinus tuberculata, see Pinus attenuata. 



