GRINDELIA SQUARROSA (PURSH) DUNAL (ASTERACEAE) IN CHERNIVTSI REGION (UKRAINE)
DOI:
https://doi.org/10.31861/biosystems2018.01.067Keywords:
Grindelia squarrosa, distribution, ecological and coenotic characteristics, Bukovinian Prut-Dniester area, Chernivtsi region, UkraineAbstract
Results of research on chorological, ecological and coenotic characteristics of an alien species of North American origin – Grindelia squarrosa (Pursh) Dunal (Asteraceae) – in Chernivtsi region (Ukraine) are presented. The species was found in the region in three associations of synanthropic vegetation, such as the Convolvulo-Agropyretum repentis Felföldy 1943 and Ambrosio artemisiifoliae-Grindelietum squarrosae Smetana, Derpoluk, Krasоva 1997 of the class Artemisietea vulgaris Lohmeyer et al. in Tx. ex von Rochow 1951, Lolio-Plantaginetum majoris (Linkola 1921) Beger of the class Polygono-Poеtea annuae Rivas-Mart. 1975 and association of Setario pumilae-Echinochloetum cruris-galli Felföldy 1942 corr. Mucina in Mucina et al. 1993 of the class Digitario sanguinalis-Eragrostietea minoris Mucina, Lososová et Šilc in Mucina et al. 2016). The indices of main edaphic and climatic factors for the species were determined for the first time. According to the main climatic indices, such as thermo-, ombro-, and cryoregime, the
species G. squarrosa is characterized by stenotopic amplitude and belongs to submezotherms, subaridophytes, and hemicryophytes. The map of distribution of the species in the region is presented
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