noun

• (countable) A coniferous tree, of genus Larix, having deciduous leaves, in fascicles.
  "The Larch-tree, with us, groweth slowly, and to be found in few places; it hath a rugged bark, and boughts that branch in good order, with divers small yellowish bunched eminences, set thereon at several distances, from whence tufts of many small, long, and narrow smooth leaves do yearly come forth; it beareth among the green leaves many beautiful flowers, which are of a fine crimson colour […]"
• (uncountable) Wood of the larch.
  "Old Peter was up early too, harnessing the little yellow horse into the old cart. The cart was of rough wood, without springs, like a big box fixed on long larch poles between two pairs of wheels. The larch poles did instead of springs, bending and creaking, as the cart moved over the forest track."