sophia and Bromus tectorum, the two most-frequent introduced species encountered in our study, are both winter annuals that were most prevalent within the Sagebrush community in the May sampling period.
Ray cells are notably thick walled in Descurainia
millefolia and Parolinia ornata, and could be termed sclereids.
pinnata (Walter) M Rt Tcp Britton Lepidium virginicum L.
Napus, hitqa, H tuktu, ataqo, mostaza 33 Capsella bursa-pastoris Shullak kiwa, H Moench shullak qura, yullaq wayta 34 Descurainia
myriophylla Hakapashillun H (Willd.
Calamagrostis (13), Nototriche (7), Poa (6), Belloa (5), Dissanthelium (4), Draba (4), Werneria (4), Xenophyllum (4), Cerastium (3), Descurainia
(3), Loricaria (3), Perezia (3) y Valeriana (3).
Equisetum laevigatum, Hesperostipa comata, and Nessella viridula were the tallest species found in nongrazed plots while Carex stenophylla, Descurainia
pinnata, and Ratibida columnifera were the tallest species in grazed plots.
Arabis caucasica Schlecht in Willd, Descurainia
Species of: Polygonum aviculare, Chenopodium album, Sinapis arvensis, Cardaria draba, Galium tricornatm, Acroptilon repense, Descurainia
sophia were the most important broad-leaved weeds of irrigated-wheat fields.