Bigleaf Maple. .leer macrophyllum. 
Leaves deep shiny green on top, pale beneath, 7 to 
14 inches wide. Stems 6 to 12 inches long. They 
turn a rich red yellow when they fall. Leaf scars 
U-shaped, with three pits. Old trees have a rough, 
hard bark with grayish, scaly ridges. Fruit a pair of 
winged seeds, the wings 1 % inches long and one-half 
inch wide. Wood fine-grained, hard, excellent for 
interior finish and turnery. 
This is the only large maple in the Pacific region. 
It is found along the coast as far north as Ketchikan 
at least, but its northern limits are not known. It 
favors low mountain streams and river bottoms where 
there are rich, gravelly, moist soils. It is tolerant of 
shade in early life, but desires top light for long clear 
growth. From 25 to 30 feet tall. 
Dwarf Maple. .4cer glabrum. 
Leaves are smooth and shiny on top, pale beneath. 
Leaf scars U-shaped, with three pits. Veins yellowish, 
Male and female flowers borne on separate trees. 
Seeds joined in pairs, a single leaf on each. Seeds are 
usually red until shed, when they turn a light brown. 
Bark, buds, and twigs a smooth red brown. Wood 
dense, hard, and heavy. The treo is seldom largo 
enough for commercial use. 
The range of dwarf maple is imperfectly known, but 
it is common all along the coast of southeastern Alaska 
to the head of Lynn Canal. It is sometimes a treo 20 
to 30 feet tall and 6 to 12 inches in diameter, but more 
often a shrub 4 to 6 feet high. 
