Zatloukal's Border Perennials by Reimar Engellage
Price: $19.95 USD. 230610 words.
Published on September 13, 2010. .
A discursive encyclopaedia and one of the world’s most complete and up to date books on herbaceous perennials (excepting those more suitable for rockeries) with about 4,140 plants in 376 genera housing 1,817 species, 311 subspecies, forms and varieties, and 2009 cultivars.