Description: English: Allium caeruleum, a hand-coloured engraving after a drawing by Miss S. A. Drake (fl. 1820s-1840s), from the 26th volume of the Botanical Register (1840), edited by John Lindley. Date: 27 April 2008. Source: scanned from The Royal Horticultural Society Diary 2004. Author: BernardM.
