Академическое издательство «Гео»

Kew words: Oxytropis, species, section, taxonomy, phylogeny, chorology, North Asia, North America.



Rastitel'nyj Mir Aziatskoj Rossii (Plant Life of Asian Russia), 2009, № 1, p. 31-43

ECOLOGICAL ENCLAVE OF THE ASIAN GENUS OXYTROPIS DC. (FABACEAE) IN NORTH AMERICA

L.I. Malyshev

Central Siberian Botanical Garden, SB RAS, Novosibirsk, Zolotodolinskaya st., 101
Fax: +7 (383) 330–19–86; e-mail: root@botgard.nsk.su

Oxytropis is mainly a montane plant of Siberia and Central Asia. In North America there are 24 species, 8 subspecies and 15 varieties of Oxytropis belonging to 7 sections. Areas of 6 species include Asian Russia, whereas 1 species was introduced from Middle Asia. The species are more abundant in the sections Arctobia and Orobia . Like in Asia, Oxytro-pis of North America is concentrated in the mountains, especially in Alaska, Canada, and the Rocky Mountains. The section Arctobia is presented mainly in Alaska, western and northern Can-ada; the section Orobia relates to the boreal zone, especially to the Rocky Mountains. The species O. lambertii is distinguished by the presence of malpighian hairs.

Kew words: Oxytropis, species, section, taxonomy, phylogeny, chorology, North Asia, North America.
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