Physostegia, Taxa Only, Exact Match: 4 Treatments

Physostegia virginiana	Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part D), Order out of Chaos. Linnaean Plant Types and their Types, London: Linnaean Society of London in association with the Natural History Museum, pp. 474-489 : 488	488
Physostegia purpurea	Thornhill, Robert, Krings, Alexander, Lindbo, David & Stucky, Jon, 2014, Guide to the Vascular Flora of the Savannas and Flatwoods of Shaken Creek Preserve and Vicinity (Pender & Onslow Counties, North Carolina, U. S. A.), Biodiversity Data Journal 2, pp. 1099-1099 : 1099	1099
Physostegia virginiana	Info Flora, 2021, Info Flora Schweiz - Lamiaceae, https://www.infoflora.ch/de/flora/lamiaceae.html (accessed 2023-10-20) : -1	-1
Physostegia virginiana	Stöhr, O., Pilsl, P., Essl, F., Hohla, M. & Schröck, C., 2007, Beiträge zur Flora von Österreich, II, Linzer biologische Beiträge 39 (1), pp. 155-292 : 233-234	233-234