Asystasia intrusa(Forssk.) Blume

WFO wfo-0000555206 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Asystasia intrusa, photographed by Ong Jyh Seng
fig. a Ong Jyh Seng, CC BY-SA 4.0 / 2022-05-18 / obs. 198501407

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 50 botanical countries

Regions where Asystasia intrusa is native: Angola, Benin, Botswana, Burkina, Burundi, Cameroon, Cape Provinces, Caprivi Strip, Central African Republic, Chad, Comoros, Congo, Djibouti, DR Congo, Equatorial Guinea, Eritrea, Eswatini, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Ivory Coast, Kenya, KwaZulu-Natal, Liberia, Madagascar, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Rwanda, Senegal, Sierra Leone, Socotra, Somalia, Sudan-South Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe, Oman, Saudi Arabia, Yemen AngolaBeninBotswanaBurkinaBurundiCameroonCape ProvincesCaprivi StripCentral African RepublicChadCongoDjiboutiDR CongoEquatorial GuineaEritreaEswatiniEthiopiaGabonGambiaGhanaGuineaGuinea-BissauGulf of Guinea Is.Ivory CoastKenyaKwaZulu-NatalLiberiaMadagascarMalawiMaliMozambiqueNamibiaNigerNigeriaNorthern ProvincesRwandaSenegalSierra LeoneSomaliaSudan-South SudanTanzaniaTogoUgandaZambiaZimbabweOmanSaudi ArabiaYemen Comoros
Native distribution of Asystasia intrusa, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Angola ANG AFRICA
Benin BEN
Botswana BOT
Burkina BKN
Burundi BUR
Cameroon CMN
Cape Provinces CPP
Caprivi Strip CPV
Central African Republic CAF
Chad CHA
Comoros COM
Congo CON
Djibouti DJI
DR Congo ZAI
Equatorial Guinea EQG
Eritrea ERI
Eswatini SWZ
Ethiopia ETH
Gabon GAB
Gambia GAM
Ghana GHA
Guinea GUI
Guinea-Bissau GNB
Gulf of Guinea Is. GGI
Ivory Coast IVO
Kenya KEN
KwaZulu-Natal NAT
Liberia LBR
Madagascar MDG
Malawi MLW
Mali MLI
Mozambique MOZ
Namibia NAM
Niger NGR
Nigeria NGA
Northern Provinces TVL
Rwanda RWA
Senegal SEN
Sierra Leone SIE
Socotra SOC
Somalia SOM
Sudan-South Sudan SUD
Tanzania TAN
Togo TOG
Uganda UGA
Zambia ZAM
Zimbabwe ZIM
Oman OMA ASIA-TEMPERATE
Saudi Arabia SAU
Yemen YEM

Not drawn on the map: Socotra. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 990 in flower of 1,020 examined

Proportion of examined Asystasia intrusa in flower, by month
Month In flower Examined Share 95% interval
Jan 102 108 94% 88% to 97%
Feb 113 113 100% 97% to 100%
Mar 145 145 100% 97% to 100%
Apr 110 121 91% 84% to 95%
May 41 43 95% 85% to 99%
Jun 53 53 100% 93% to 100%
Jul 36 36 100% 90% to 100%
Aug 28 28 100% 88% to 100%
Sep 44 44 100% 92% to 100%
Oct 119 126 94% 89% to 97%
Nov 120 124 97% 92% to 99%
Dec 79 79 100% 95% to 100%

Peak flowering in Feb. Each bar is the share of Asystasia intrusa observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 990 of 1,020 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 27 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Asystasia acuminata Klotzsch
  • Asystasia ansellioides var. lanceolata Fiori
  • Asystasia bojeriana Nees
  • Asystasia capensis Nees
  • Asystasia chelonoides var. arabica Nees
  • Asystasia comorensis Bojer ex Nees
  • Asystasia coromandeliana var. linearifolia S.Moore
  • Asystasia coromandeliana var. micrantha Nees
  • Asystasia floribunda Klotzsch
  • Asystasia gangetica subsp. micrantha (Nees) Ensermu
  • Asystasia micrantha (Nees) Y.F.Deng, N.H.Xia
  • Asystasia multiflora Klotzsch
  • Asystasia parvula C.B.Clarke
  • Asystasia pinguifolia T.J.Edwards
  • Asystasia podostachys Klotzsch
  • Asystasia pubescens Klotzsch
  • Asystasia querimbensis Klotzsch
  • Asystasia scabrida Klotzsch
  • Asystasia subhastata Klotzsch
  • Dyschoriste biloba Hochst.
  • Ramusia nyctaginea E.Mey.
  • Ruellia biloba Hochst.
  • Ruellia intrusa Forssk.
  • Ruellia nemorum Russell ex Wall.

and 3 more.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.