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Trees with Needlelike Leaves Grouped in Bundles of 2 to 5 (Pines) ' <br /> <br /> RED PINE or Norway pine (Pinus resinosa) <br /> Large tree, 40'- 60' (100') tall: symmetric, rounded <br /> crown with stout, hor/zontaI branches spaced in annual <br /> whorls along the trunk; trunk, buttressed when mature, <br /> up to 36" diameter. Leaves: Needlelike, 4"- 6" long, <br /> 2'per bundle, break cleanly when bent, dark green. <br /> Twigs: Reddish-brown; buds, orangish-brc~wn to <br /> reddish-brown, with loose scales. Seed cone: 1 ~/:" - 2'fi" <br /> long, scale tips unarmed, pairs usually stick out at right <br /> angles from branch. Bark: Reddish-brown to gray, <br /> flaky: becoming shallowly furrowed with thin, scaly <br /> plates (resembling jigsaw puzzle pieces). Range: <br />Native, north-central and northeastern Minnesota: hardy <br />throughout. Remarks:' Shade-intolerant; moderately <br />fast-~owing; long-lived; Minnesota's sram tree. ,~. <br />Important timber tree naturally found on dry, highly <br />acidic, sandy soils. Commonly used in reforestation <br />projects and Christmas tree plantations. Fire dependent;.. <br />seeds rapidly germinate on exposed soils. Thick bark <br />protects mature trees. Sometimes called ~'Norway pine," <br />probably because early settlers confused the tree with <br />the Norway spruce of Europe. <br /> <br />EASTERN WHITE PINE (Pinus srrobus) <br />Large tree, 40' - 70' (100') tall; oval or irregular crown <br />with horizontal branches spaced in annual whorls along <br />the trunk (plumetike outline); trunk, bmtressed when . <br />mature, up to 4? diameter. Leaves: Needlelike, <br />2~/:" - 5" long, 5 per bundle, soft, flexible, bluish-green. Eastern <br />Twigs: Greenish-gray to orangish-brown; buds, reddish White Pine <br />or yellowish-brown, pointed tip. Seed cones: 4"- 8" <br />long, flexible, resin-coated scale tips (white). <br />Bark: Greenish-gray, smooth: becoming grayish-brown <br />and deeply furrowed with scaly ridges. Range: Native, <br />northern and eastern Minnesota; hardy to Zone 3a. <br />Remarks: Intermediate in shade tolerance; fast- <br />growing; long-lived. Once called the '~Monarch of the <br />North," eastern white pine is the largest coniferous tree <br />in Minnesota and was the most important timber species <br />in the United States from about 1700 to 1920. British <br />attempts to control white pine harvesting for use in the <br />Royal Navy contr/buted to the ,American Revolution. <br />Reestablishment efforts have been slowed by white pine <br />blister rust (a disease) and heavy deer browsing. <br />Am'active Christmas tree and ornamental species that <br />survives on a wide variety of well-drained sites. <br /> <br />Section Two-Coniferous Trees <br /> <br />!. : ~.. - i.~7.5";:'5'% 2 ~,'; :- ':', .... <br /> 136 <br /> <br /> <br />