^^^^ 



JACK PINE 



F. donMs/ono 



The bark of the jack pine, which is thin, has a reddish-brown colour, with a 

 yellowish tinge in the top of the tree. The inner bark is slightly reddish near the 

 base. It is roughened by narrow, rounded ridges which separate into small, thick 

 plates. The leaves are very short, }^ in. to 1)^ in. long, twisted, and in bundles of 

 two. In cross-section they are very flat and in colour are bright yellowish-green. 



The cones are from 1 to 2 in. long and are usually found in pairs, one on each 

 side of the twig, curved and pointed towards the tip of the branch. The scales 

 are thickened at the tip but are without a prickle, except on young cones. The 

 cones are persistent and remain on the branches many years. 



Jack pine is often considered a tree weed, but its wide distribution and common 

 occurrence in Canada make it a tree of considerable commercial importance. It 

 is used to a large extent for railway tics and fuel and in the manufacture of kraft 

 pulp. The wood is weak, brittle, and perishable, and is usually of small dimensions 

 and knotty, but it is sawn into lumber and used for rough construction work. It 

 is often sold mixed with red pine. 



PINUS RIGIDA, Mill. PITCH PINE 



Common names: Pitch pine, scrub pine*, jack pine*, rigid pine. 

 French name: Pin h. feuilles rigides. 



Under the most favourable conditions the pitch pine will reach a height of 

 60 ft. and a diameter of 2 ft., but usually it is a low tree about 30 ft. high and 6 to 8 

 in. in diameter. The broad, open crown and the many crooked and persistent 

 dead branches give the whole tree a very scraggy appearance. This is our only 

 conifer that possesses the power of sprouting from the stump. 



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