Leaves alternate and coriaceous, long petiolate
, shining on the upper side, 3 nerved at the base.
: in dorsal view with width half or less that of T2 and at least twice as long as wide (Fig.
fir (European, Siberian, Ayan, Korean); Larch (Sukachev, Siberian, Gmelin, Kayander, Chekanovsky, Kuril); Pine (common, Siberian pine, cedar Korean); birch (dangling, Karelian, Erman, Kamchatka); fir (Sakhalin, whole-leaved); oak (petiolate
, Mongolian, dentate, curly); ash (common, manchurian, lanceolate); Poplar white; Manchurian nut.
The leaves are opposite, petiolate
, and palmatised, made of 5 to 7 segments toothed and acute.
to adapt to compressed and compact soils.
Leaves alternate, spiral or distichous; petiolate
or subsessile, presence of pulvinus; extrafloral nectaries absent or present, convex, sessile or stipitate, located between the pairs of leaflets or on the petiole; leaflets 1-many pairs, papyraceous to coriaceous, elliptic to oblong, lanceolate to obovate, apex acuminate, rounded to mucronate, base oblique.
Under suitable conditions and without use of pruning, the plants can reach 12-20 m in height, with stem diameter from 40 to 60 cm, and petiolate
leaves, alternate and pinnate, with 2-4 pairs of leaflets arranged alternately or opposite in the rachis, with size ranging from 2 to 10.5 cm x 5-28 cm, being the absence of terminal leaflet a gender characteristic.
The leaves are petiolate
, glabrous, and elliptic to oblong-elliptic, up to 7 cm long and 3 cm wide.
Leaf is simple and petiolate
, leaf blade is ovatetriangular, 2-8 cm long, and tip acuminate, leaf base is cordate or hastate, and upper leaves are small and sessile.
These leaves with different shapes can be grouped into two distinct categories; the first one is called ovate and includes basal and petiolate
leaves, arranged in the form of a rosette, while the second one, the lanceolate, refers to smaller leaves and amplexicaul leaves that emerge after stem elongation.
Imbu were classified as simple (leaf blade is not divided), incomplete (with no sheath), petiolate
(brevipetiolate)-with petioles length greater than 15 mm (on average 51,24mm)--and alternately arranged.
Leaves alternate, composed (trifoliate), petiolate
; petiole 2-2.5 cm long; stipules ovate-lanceolate, entire or dentate, pointed.