. Atlas of the rare vascular plants of Ontario. Rare plants; Botany. Specimens / Spécimens CAN, DAO, MICH, GAC, QK, TRT, TRTE, UWO OPre 1925 <D 1925-1949 O 1950-1964 • Post 1964 Gray-headed coneflower Rudbèque. After / D'après: McGregor & Barkiey 1977, Richards 1968, Wherry et al. 1979 HABITAT: Moist prairies and sandy roadsides. STATUS: Rare in Canada, Minnesota, and Mississippi. HABITAT: Prairies liumides et terrains sablonneux en bordure des routes. SITUATION: Rare au Canada, au Minnesota et au Mississippi. REFERENCES / SOURCES Richards, 1968. A monograph of the genus Ratibida.
. Atlas of the rare vascular plants of Ontario. Rare plants; Botany. Specimens / Spécimens CAN, DAO, MICH, GAC, QK, TRT, TRTE, UWO OPre 1925 <D 1925-1949 O 1950-1964 • Post 1964 Gray-headed coneflower Rudbèque. After / D'après: McGregor & Barkiey 1977, Richards 1968, Wherry et al. 1979 HABITAT: Moist prairies and sandy roadsides. STATUS: Rare in Canada, Minnesota, and Mississippi. HABITAT: Prairies liumides et terrains sablonneux en bordure des routes. SITUATION: Rare au Canada, au Minnesota et au Mississippi. REFERENCES / SOURCES Richards, 1968. A monograph of the genus Ratibida. Rhodora 70:348-393. White & Maher 1983. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Argus, George W. (George William); National Museum of Natural Sciences (Canada). Botany Division. Ottawa : Botany Division, National Museum of Natural Sciences = Division de la botanique, Musée national des sciences naturelles
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbotany
