Betula tianschanica[2] er tegund af birkiætt[3] sem var lýst af Franz Josef Ivanovich Ruprecht. IUCN skráir hana sem í mikilli hættu.[1] Engar undirtegundir finnast skráðar.[4]
| Betula tianschanica | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ástand stofns | ||||||||||||||
| Vísindaleg flokkun | ||||||||||||||
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| Tvínefni | ||||||||||||||
| Betula tianschanica Rupr. | ||||||||||||||
| Samheiti | ||||||||||||||
|
Betula pubescens var. songarica |
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