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Chenopodium probstii and Chenopodium missouriense : two North American plant species in the Czech Republic, Slovak Republic and neighbouring countries
Author(s) -
Dostálek J.,
Jehlík V.
Publication year - 2004
Publication title -
feddes repertorium
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 25
eISSN - 1522-239X
pISSN - 0014-8962
DOI - 10.1002/fedr.200411048
Subject(s) - herbarium , czech , geography , slovak , floristics , chenopodium , chorology , naturalisation , ecology , biology , taxonomy (biology) , political science , philosophy , linguistics , politics , citizenship , law , species richness , weed
This paper presents the results of a floristic‐taxonomic survey of two North American invasive species, Chenopodium probstii Aellen and Ch. missouriense Aellen , in the Czech Republic, Slovak Republic and neighbouring countries. It is based mainly on the results of a re‐analysis of the authors' herbarium material collected from 1957 to 2003, deposited mainly in the PRA Herbarium (herbarium of the Institute of Botany of the Academy of Sciences of the Czech Republic in Průhonice near Prague). Also, the chorology and ecology of both species in Czechian and Slovakian are discussed. In addition, a summary of data on the occurrence of both species throughout their distribution is presented, with emphasis on European records. On the basis of this analysis, the hypothetical origin of Ch. probstii in North America is confirmed. First‐time records of this species are presented for Egypt, North Korea, Poland, Slovenia, Croatia and Romania. The second species, Ch. missouriense, is reported for the first time from Slovakia and Austria. Sources of further dissemination of both species in their secondary European area of distribution are described. In Europe, both these invasive species are in the pro‐ cess of naturalisation (ephemerophyte → epoecophyte), approximately in the resting‐phase lag; significant range expansion can be expected in the near future, especially for Ch. probstii.