Ulleungdo white pine
Pinus parviflora · Pinaceae · 섬잣나무
How to spot it
Distinguished from related pine taxa because the cone scales open when ripe without the scale tips curving back, and the seeds have a narrow wing.
Look
- Leaves
- Dark green needles grow in bundles of five, 36.6-74.9 mm long and 0.6-1.1 mm wide, with 4-5 stomatal lines on each inner face.
- Flowers
- Makes cones instead of flowers, appearing in April-May. Male cones are oblong (5.5-8.9 mm long) and female cones elliptic (10-12 mm long).
- Fruit
- Cylindrical cones (45.5-87.1 mm long) ripen yellow-brown in September-October of the next year and the scales open. Seeds are egg-round (9.7-13.9 mm long) with a narrow wing.
- Bark
- Brown, peeling in irregular scales.
Where it grows
- In Korea
- Native (Ulleungdo)
- Native to
- Korea (Ulleungdo), Japan (central and southern Honshu), Taiwan