Asystasia intrusa (Forssk.) Blume

Bandeira, S., Bolnick, D. & Barbosa, F. (2007). Wild Flowers of Southern Mozambique Universidade Eduardo Mondlane, Maputo, Mozambique Pages 188 - 189. As Asystasia gangetica (Includes a picture).

Baumann, G. (2005). Photographic Guide to Wildflowers of Malawi Wildlife and Environmental Society of Malawi Pages 138 - 139. as Asystasia gangetica (Includes a picture).

Champluvier, D. (1985). Acanthaceae Flore du Rwanda Spermatophytes Volume III Page 436. as Asystasia gangetica (Includes a picture).

Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 8. as Asystasia gangetica gangetica

Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 18. As Asystasia gangetica

Darbyshire, I., Vollesen, K. & Kelbessa, E. (2010). Acanthaceae (Part 2) Flora of Tropical East Africa Royal Botanic Gardens, Kew. Pages 457 - 460. as Asystasia gangetica subsp. micrantha (Includes a picture).

Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Acanthaceae (Part 2) Flora Zambesiaca 8(6) Pages 126 - 128. as Asystasia gangetica subsp. micrantha

Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 324. as Asystasia gangetica subsp. micrantha (Includes a picture).

Kelbessa, E. (1994). A Revision of Asystasia gangetica (L.) T. Anders (Acanthaceae) Proceedings of the XIIIth Plenary Meeting AETFAT, Malawi 1 Pages 333 - 346. as Asystasia gangetica subsp. micrantha (Includes a picture).

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 13. as Asystasia gangetica subsp. gangetica

Pickering, H. & Roe, E. (2009). Wild Flowers of the Victoria Falls Area Helen Pickering, London Page 12. as Asystasia gangetica subsp. micrantha (Includes a picture).

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 17. as Asystasia gangetica subsp. micrantha

Siebert, S. & Mössmer, M. (Editors) (2002). SABONET Southern Mozambique Expedition 2001; Provisional Plant Checklist of the Maputo Elephant Reserve (MER) and Licuati Forest Reserve (LFR) SABONET News 7(1) Page 23. as Asystasia gangetica subsp. micrantha

Strugnell, A.M. (2006). A Checklist of the Spermatophytes of Mount Mulanje, Malawi Scripta Botanica Belgica 34 National Botanic Garden of Belgium Page 33. as Asystasia gangetica subsp. micrantha

Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 193. as Asystasia gangetica

Wursten, B., Timberlake, J. & Darbyshire, I. (2017). The Chimanimani Mountains: an updated checklist. Kirkia 19(1) Page 87. as Asystasia gangetica subsp. micrantha