Accession Data

Pinus densiflora

Common Name: Japanese Red Pine

Family: Pinaceae

Country of Origin: S. Russian Far East to Korea and C. & S. Japan

Description: A straight to contorted (particularly in coastal settings) tree up to 36m tall, with an open, irregular or umbrella-shaped crown. Lower branches shed early even in open settings. Bark red-brown, in large plates (on old trees) or flaky and papery. Branches grey-green, rapidly becoming smooth with age, developing papery reddish bark. Leaves green, pliable, 2 per fascicle, sheaths retained, 8-12 cm long, 0.7-1.2 mm wide, acute, with minute marginal teeth, stomata in lines on all surfaces; retained in bunches at ends of twigs. Pollen cones small, ellipsoidal, pale yellow or yellow-brown, at end of shoots. Seed cones conic-ovoid, tan to golden brown, 4-7 cm long, in whorls of 2-5 at branch nodes, remaining closed and attached for several years, on a 1-3 mm long somewhat flexible peduncle. Cone scales: about 50 scales may contain fertile seed; cuneate, the exposed part flattened, rhomboidal with a central, short-mucronate umbo; the concealed part a dark red-brown. Seeds with attached wing 10-17 mm long.5

Accession Data

USDA Zone: 7

Accession #: 201800129

Accession Date: 2019-10-25 00:00:00

Bloom Status: 🪴 Not Flowering

Location: 2301

Quantity: 1

Source: John Korte (seed from treeseeds.com)

Classification

Division: Pinophyta

Class: Pinopsida

Subclass: Pinidae

Order: Pinales

Family: Pinaceae

SubFamily: Pinoideae

References

  1. The Plant List (2013). Version 1.1. Last accessed on Friday, 25 October, 2019.
  2. WCSP (2019). World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Last accessed on Friday, 25 October, 2019.
  3. ARS-GRIN Taxonomy. Last accessed on Friday, 25 October, 2019.
  4. IUCN Redlist. Last accessed on Friday, 25 October, 2019.
  5. The Gymnosperm Database. Last accessed on Friday, 25 October, 2019.

Images

Pinus densiflora