Attributes / relations provided by
♦ ¹Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
♦ ²Arnold SEJ, Faruq S, Savolainen V, McOwan PW, Chittka L, 2010 FReD: The Floral Reflectance Database — A Web Portal for Analyses of Flower Colour. PLoS ONE 5(12): e14287.
♦ ³PLANTATT - Attributes of British and Irish Plants: Status, Size, Life History, Geography and Habitats, M. O. Hill, C. D. Preston & D. B. Roy, Biological Records Centre, NERC Centre for Ecology and Hydrology (2004)
♦ ⁴ECOFACT 2a Technical Annex - Ellenberg’s indicator values for British Plants, M O Hill, J O Mountford, D B Roy & R G H Bunce (1999)
♦ ⁵Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ ⁶Biological Records Centre Database of Insects and their Food Plants
♦ ⁷Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ ⁸DIET OF THE ENDEMIC MADEIRA LAUREL PIGEON AND FRUIT RESOURCE AVAILABILITY: A STUDY USING MICROHISTOLOGICAL ANALYSES, PAULO OLIVEIRA, PATRICIA MARRERO AND MANUEL NOGALES, The Condor 104:811–822 (2002)
♦ ⁹New Zealand Institute for Plant & Food Research Plant-SyNZ™ database
♦ ¹⁰Food habits of the coypu, Myocastor coypus, and its impact on aquatic vegetation in a freshwater habitat of NW Italy, Claudio PRIGIONI, Alessandro BALESTRIERI and Luigi REMONTI, Folia Zool. – 54(3): 269–277 (2005)