DCHP-1 Online
double spruce 
See quotes.
- 1853 The "black" or "double spruce" (P. nigra), is that species from the twigs of which is extracted the essence that gives its peculiar flavour to the well-known "spruce beer."
- 1917 (1921) PICEA MARIANA (Mill.) B.S.P. BLACK SPRUCE Common names: Black spruce, red spruce, double spruce, water spruce, swamp spruce.
- 1956 Black Spruce [is also called] double spruce. . . .
- 1853 The "black" or "double spruce" (P. nigra), is that species from the twigs of which is extracted the essence that gives its peculiar flavour to the well-known "spruce beer."