Pinus in Flora of Pakistan @ efloras.org

Pinus L., Sp. Pl. 1000. 1753; Gen, Pl. 499. 1754; V.L. Komarov in Fl. URSS. 1:159. 1934; 1. Chaudhri in Vegetatio 11:377-378. 1963; H. Riedl in Rech. F., Fl. Iran. 14:4. 1964; E. Nasir, M.A. Siddiqi & Zaffar Ali, Gymnosperms, W.Pak.9.1969.

Evergreen trees with flaking bark and resinous wood. Shoots dimorphic. Short shoots bearing fascicles of 2, 3 or 5 acicular leaves. Male cones c. 15 mm long, in dense clusters at base of short shoots, erect. Female cones becoming woody in the second or third year and falling as a whole; scales cuneate, apex thickened, often prolonged, seeds winged.

About 80 species, N. temperate and N. tropical. Represented by 5 especies in Pakistan, of which two are cultivated.

1 Leaves in fascicles of 5. Pinus wallichiana

+ Leaves in fascicles of less than 5. (2)

2 (1) Leaves in fascicles of 2. (3)

+ Leaves in fascicles of 3. (4)

3 (2) Female cones peduncled, slightly recurved. Leaves up to 10 cm long. Pinus halepensis

+ Female cones subsessile, erect. Leaves ± 12 cm long. 5. Pinus brutia

4 (2) Leaves 20 30 cm long, flexuous; wing 2 3 times the seed length. Pinus roxburghii

+ Leaves 6 12 cm long, stiff: wing less than the seed length. Pinus gerardiana

Lower Taxa

Related Synonym(s):

Related Objects

Flora of China

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