Pseudarthria hookeriWight & Arn.

WFO wfo-0000177956 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Pseudarthria hookeri, photographed by Tony Rebelo
fig. a Tony Rebelo, CC BY-SA 4.0 / 2022-05-20 / obs. 203901672
Pseudarthria hookeri, photographed by Shaun Swanepoel
fig. b Shaun Swanepoel, CC BY 4.0 / obs. 182727630
Pseudarthria hookeri, photographed by Tony Rebelo
fig. c Tony Rebelo, CC BY-SA 4.0 / obs. 183108871
Pseudarthria hookeri, photographed by Tony Rebelo
fig. d Tony Rebelo, CC BY-SA 4.0 / obs. 183103009
Pseudarthria hookeri, photographed by James Deacon
fig. e James Deacon, CC BY-SA 4.0 / obs. 115896419
Pseudarthria hookeri, photographed by Tony Rebelo
fig. f Tony Rebelo, CC BY-SA 4.0 / obs. 65422471
Pseudarthria hookeri, photographed by Tony Rebelo
fig. g Tony Rebelo, CC BY-SA 4.0 / obs. 64974364
Pseudarthria hookeri, photographed by Jimmy Whatmore
fig. h Jimmy Whatmore, CC0 1.0 / obs. 100233329

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 35 botanical countries

Regions where Pseudarthria hookeri is native: Angola, Benin, Burkina, Burundi, Cameroon, Cape Provinces, Central African Republic, Chad, Congo, DR Congo, Eswatini, Ethiopia, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mali, Mauritius, Mozambique, Nigeria, Northern Provinces, Rwanda, Senegal, Sierra Leone, Sudan-South Sudan, Tanzania, Togo, Uganda, Zambia, Zimbabwe AngolaBeninBurkinaBurundiCameroonCape ProvincesCentral African RepublicChadCongoDR CongoEswatiniEthiopiaGabonGhanaGuineaGuinea-BissauIvory CoastKenyaKwaZulu-NatalMadagascarMalawiMaliMozambiqueNigeriaNorthern ProvincesRwandaSenegalSierra LeoneSudan-South SudanTanzaniaTogoUgandaZambiaZimbabwe Mauritius
Native distribution of Pseudarthria hookeri, 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
Burkina BKN
Burundi BUR
Cameroon CMN
Cape Provinces CPP
Central African Republic CAF
Chad CHA
Congo CON
DR Congo ZAI
Eswatini SWZ
Ethiopia ETH
Gabon GAB
Ghana GHA
Guinea GUI
Guinea-Bissau GNB
Ivory Coast IVO
Kenya KEN
KwaZulu-Natal NAT
Madagascar MDG
Malawi MLW
Mali MLI
Mauritius MAU
Mozambique MOZ
Nigeria NGA
Northern Provinces TVL
Rwanda RWA
Senegal SEN
Sierra Leone SIE
Sudan-South Sudan SUD
Tanzania TAN
Togo TOG
Uganda UGA
Zambia ZAM
Zimbabwe ZIM

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 41 in flower of 52 examined

Peak flowering in Jan. Each bar is the share of Pseudarthria hookeri 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. 41 of 52 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 months have fewer than 5 examined observations, so no proportion is drawn for them. 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 8 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.

  • Anarthrosyne densiflora Klotzsch
  • Anarthrosyne robusta E.Mey.
  • Desmodium kerstenii O.Hoffm.
  • Desmodium robustum E.Mey.
  • Pseudarthria alba A.Chev.
  • Pseudarthria densiflora (Klotzsch) B.D.Jacks.
  • Pseudarthria lactescens Bojer
  • Pseudarthria robusta (E.Mey.) Schltr. ex Zahlbr.

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.