[1] : The Collaborative International Dictionary of English v.0.48

tamarack \tam"arack\, n. bot.
   a the american larch; also, the larch of oregon and british
       columbia larix occidentalis. see hackmatack, and
       larch.
   b the black pine pinus murrayana of alaska, california,
       etc. it is a small tree with fine-grained wood.
       1913 webster
see also:
larix occidentalis hackmatack larch pinus murrayana 

Pinus >> P Words
Pinus, definition of term: Pinus
pinus_pag1.html