Kyrgyzstan July 2008 Zabelia corymbosa quest

Voucher: KYRG 123 

Betula tianshanicus Rupr.

Region: Talas Oblast  Talas Rayon
Gazetteer: Chychkan Valley 
Coordinates: 42º09'49'' N, 72º54'25'' E  Alt: 2062m 

Tree along the river. Bark peeling in large sheets red inside and white with conspicuous brown lenticels outside. Leaves triangular.
River bank with tall shrubs-trees of Salix, Berberis, Lonicera, Ribes, Amygdalus. Also Sanguisorba, Ligularia, Rubus, Geum, Aegopodium.

Identification Notes: Verified with Flora of the USSR. Vol.5, V. L. Komarov and Flora of China online ( Leaves warty as the young stems. Leaf margin doubly serrate, thick. Leaf blade cuneate to truncate at base and to 5cm long. Catkins oblong to 25mm long, peduncle to 10mm long. Petioles and peduncles glabrous to pubescent. Seed with a wing more than twice as broad as the seed. Scales with three lobes, terminal one longer than the two lateral ones. Classification of the Soviet Union Betulas is very complex and in need of a revision. 
Ancillary Collections: photos, seeds 

Landrein, S. 123                5 July 2008

morphological details

bark bark bark bark catkin catkin

stipule stipule

leaf base abaxially leaf base abaxially

abaxial leaf surface abaxial leaf surface

leaf margin leaf margin

young stem young stem


seed pictures
scale and seed scale and seed scale scale seed seed
seeds seeds seed seed seed seed
field picture
Herbarium voucher
Herbarium voucher

Other field pictures

bark bark