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그루안

Pitch Pine

Pinus rigida · Pinaceae · 리기다소나무

How to spot it

Three needles per bundle, strong sprouting of short shoots and needles from the trunk, and prickles on the cone scales.

Look

Leaves
Needles grow in bundles of 3 (rarely 4); they are stiff and twisted, 39.4-129 mm long.
Flowers
Flowers in May; monoecious. Male flowers cluster at the base of new shoots and are 12.3-23.7 mm long.
Fruit
Cones are egg-shaped to conical, ripening brown, 39.4-67.8 mm long, with prickle-like points on the scale tips; they stay on the branches for a long time after ripening. Fruiting is in September of the next year.
Bark
Bark is reddish brown and deeply fissured lengthwise.

Where it grows

Native to
Introduced species native to North America.
Ecology
Grows on poor, dry or moist flatland or mountain sites.

Sources