found: Work cat.: 00364011: Nantel, P. La situation du chardon écailleux (Cirsium scariosum) au Québec, 1998:p. 8 (synon.: Carduus scariosus; Carduus kelseyi; Carduus butleri; Carduus magnificus; Cirsium kelseyi; Cirsium magnificum; Cirsium minganense; Cirsium foliosum; English names: Swamp thistle)
found: PLANTS natl. database, Aug. 9, 2000(Cirsium scariosum; Meadow thistle)
found: Cklist. vasc. flora(Cirsium scariosum)
found: National list of sci. plant names, 1987(Cirsium scariosum)
found: AGRICOLA, via 1stsearch, Aug. 10, 2000(titles: Cirsium scariosum; identifiers: Cirsium scariosum)
found: Cirsium web page, Aug. 9, 2000(Cirsium scariosum)
found: CalPhotos Plants WWW site, Aug. 9, 2000(Cirsium scariosum; Dwarf thistle; Elk thistle)
notfound: SPN;Hortus;Biol. & agric. index, via 1stsearch, Aug. 10, 2000