Douglas, G.W. 1995. The Sunflower Family (Asteraceae) of British Columbia. Vol. 2. Astereae, Anthemideae, Eupatorieae and Inuleae. Royal B.C. Mus. Victoria. 393pp.
Douglas, G.W. 1996. Endemic Vascular Plants of British Columbia and Immediately Adjacent Regions. Can. Field-Nat. 110(3):387-391.
Douglas, G.W., D. Meidinger, and J. Penny. 2002. Rare Native Vascular Plants of British Columbia, 2nd ed. B.C. Conserv. Data Centre, Terrestrial Inf. Branch, Victoria. 358pp.
Douglas, G.W., G.D. Straley, and D. Meidinger, eds. 1998b. Illustrated Flora of British Columbia, Vol. 1, Gymnosperms and Dicotyledons (Aceraceae through Asteraceae). B.C. Minist. Environ., Lands and Parks, Wildl. Branch, and B.C. Minist. For. Res. Program. 436pp.
Cross-Linked Information Resources (CLIR): an umbrella search web application that allows users to
use a single window to simultaneously search six provincial environmental and natural resource information
e-libraries and provides access to digital documents in these e-libraries.
