1. NHD15/9 Reference (shelfmark): NHD15/9 Title: Spreading Hogweed, Punarnava Scope & Content: Spreading Hogweed, Punarnava Family Nyctaginaceae, ‘Boerhavia diffusa’ L. Original inscriptions: ‘Boerhaavia diffusa’ Further inscriptions: Artist: Medium: Watercolour Size: Note: Collection Area: Visual Arts Languages: Not applicable Date Range: 1798-1805 Extent: 1 Item