It differs in having slightly larger cones, and needles with three resin canals instead of two in Swiss Pine.

Examples include glandular hairs, nectaries, hydathodes, and the resin canals in Pinus.

If living tree cells are no longer available the parasite feeds and reproduces on the fungal hyphae that is growing through the resin canals.

They have one resin canal that is present beneath the single vascular bundle.

They contain two marginal resin canals and the apex of the leaf is notched and emarginate.

The fungus blocks resin canals, which leaves the weevil free to eat.

The petals and green sepals are dotted with red glands and streaked with reddish resin canals.

To their surprise, researchers found that the tiny Paleoclusia flowers also contained resin canals and had what appeared to be resin residue inside.

Needles more stout, bright blue-green, with few resin canals.

Needles less stout, gray-green, with few resin canals.