The Netherlands) (1789) 196, nom. (1964) 174-216; Vidal, (1968) 1-210 (excl. Rubus); Nguyen (1970) 31-74 (Rubus by Nguyen Van
ROCK GARDEN QUARTERLY
Thistle be a mess: Untangling the taxonomy of Cirsium (Cardueae: Compositae) in North America - Ackerfield - 2020 - Journal of Systematics and Evolution - Wiley Online Library
Editions 26-36 (March 2015-Sep 2015) - Friends of Gillfield Wood FoGW an ancient woodland in Totley on the outskirts of Sheffield bordering the Peak Park and Derbyshire
Mint: The Genus Mentha
Thistle be a mess: Untangling the taxonomy of Cirsium (Cardueae: Compositae) in North America - Ackerfield - 2020 - Journal of Systematics and Evolution - Wiley Online Library
Pollination efficiency of cockroaches and other floral visitors of Clusia blattophila - Vlasáková - 2019 - Plant Biology - Wiley Online Library
Vol. 29, No. 3-4 -- July-Oct 2001 - California Native Plant Society
BSBI News & Views: April 2020
BSBI News & Views: April 2020
Thistle be a mess: Untangling the taxonomy of Cirsium (Cardueae: Compositae) in North America - Ackerfield - 2020 - Journal of Systematics and Evolution - Wiley Online Library