. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 96 m t BLACK WILLOW Salix nigra, Marshall FOEM-Largest of our native tree-wlllow«, usually 25-30 ft. high with a dian^eter of lO-W infherbut^y reach a height of 00^80 ft., with a tUameter of 2-8 feet. Trunks usually crooked, often inclined and occurring in small groups. Crown wide, open and round-toppea. BAXK-Thick. rough, deeply furrowed, blackish-brown, with wide ridge, wvercd with thick scales. Ridges of bark often connected by narrow, transverse or diagonal ridges. TWIO&-«lender. smooth, brittle, drooping,
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. 96 m t BLACK WILLOW Salix nigra, Marshall FOEM-Largest of our native tree-wlllow«, usually 25-30 ft. high with a dian^eter of lO-W infherbut^y reach a height of 00^80 ft., with a tUameter of 2-8 feet. Trunks usually crooked, often inclined and occurring in small groups. Crown wide, open and round-toppea. BAXK-Thick. rough, deeply furrowed, blackish-brown, with wide ridge, wvercd with thick scales. Ridges of bark often connected by narrow, transverse or diagonal ridges. TWIO&-«lender. smooth, brittle, drooping, bright reddish-brown to orange colored. BTOa-Altemate, sinall. about i of an Inch long, sharp-pointed. reddUh-brown covered by a single scale. LEAVES-Altemate. simple, narrowly-lanceolate, very long-pointed, tapering or -"gbtly round- ed at base, finely serrate on margin, usually Mnooth and dark green above, pale green below. LEAF-BCAES-^ltemate. narrow, with 8 bundle-scars in a lunate line. Terminal scar often larger than lateral ones. Stipule-scars large and prominent. FLOWEBS-Appear In March or AprU before the leaves. Stamlnate and P»*«"**f .?-T«n/''" cur ^n separate trSi. and both are borne In drooping aments or catkins from 1-3 inches long. FEUIT-A reddish-brown, smooth, ovate capsqle which spllU open and liberates many small seeds. Seeds covered with a dense tuft of fine long hairs. WOOD-Dlfluse-porous; with very inconspicuous medullary ray«; reddish-brown. •»«. ^jf• ftrm/^close-grained: not durable. Weighs about 28 lbs. per cubic foot. Used mainly for fuel and charcoal. DISTINGinSHING CHARACTEEISTICft-The Black Willow Is the largest of our native Wil- lows The^S^thlS^aled. blackish-brown bark Is characteristic. The narrowly-lanceolate anTAoS^Jloed leav^ which are always smooth or nearly so are also distinctive. The tm, oJteu^^in small groups. The slender drooping branches are easily broken off at their ends. EAHGE-New Brunswick to Florida, w
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