Argyroderma delaetiiC.A.Maass

WFO wfo-0000547180 Accepted WFO 2026-06 8 photographs CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Argyroderma delaetii, photographed by desertnaturalist
fig. a desertnaturalist, CC BY 4.0 / 2021-09-08 / obs. 202616398
Argyroderma delaetii, photographed by Tony Rebelo
fig. b Tony Rebelo, CC BY-SA 4.0 / obs. 50968448
Argyroderma delaetii, photographed by Brian du Preez
fig. c Brian du Preez, CC BY-SA 4.0 / obs. 43130844
Argyroderma delaetii, photographed by sharndreheuvel
fig. d sharndreheuvel, CC BY-SA 4.0 / obs. 177998999
Argyroderma delaetii, photographed by sharndreheuvel
fig. e sharndreheuvel, CC BY-SA 4.0 / obs. 178000309
Argyroderma delaetii, photographed by Chris Vynbos
fig. f Chris Vynbos, CC BY-SA 4.0 / obs. 25574309
Argyroderma delaetii, photographed by Tony Rebelo
fig. g Tony Rebelo, CC BY-SA 4.0 / obs. 24529361
Argyroderma delaetii, photographed by Tony Rebelo
fig. h Tony Rebelo, CC BY-SA 4.0 / obs. 24528680

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.

The specimen a real sheet, in a real collection

Herbarium
Royal Botanic Gardens, Kew
Accession
K006200375
Filed as
Argyroderma delaetii Maass
Det. by
not recorded on this sheet
Collected
s.coll.
Origin
not recorded
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 1 botanical country

Regions where Argyroderma delaetii is native: Cape Provinces Cape Provinces
Native distribution of Argyroderma delaetii, 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.
RegionTDWG codeContinent
Cape Provinces CPP AFRICA

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.

Where it actually grows measured, from 130 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 7.0 °C 7.8 °C 8.1 °C
Warmest month, mean daily high 30.2 °C 31.3 °C 32.3 °C
Annual rainfall 159 mm 191 mm 406 mm
Rainfall in the driest quarter 16 mm 17 mm 33 mm

It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 130 research-grade observations of Argyroderma delaetii that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 26 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.

  • Argyroderma aureum L.Bolus
  • Argyroderma australe L.Bolus
  • Argyroderma blandum L.Bolus
  • Argyroderma boreale L.Bolus
  • Argyroderma brevitubum L.Bolus
  • Argyroderma carinatum L.Bolus
  • Argyroderma citrinum L.Bolus
  • Argyroderma concinnum Schwantes
  • Argyroderma cuneatipetalum L.Bolus
  • Argyroderma delaetii var. purpureum C.A.Maass
  • Argyroderma densipetalum L.Bolus
  • Argyroderma formosum L.Bolus
  • Argyroderma gregarium L.Bolus
  • Argyroderma latifolium L.Bolus
  • Argyroderma lesliei N.E.Br.
  • Argyroderma leucanthum L.Bolus
  • Argyroderma longipes L.Bolus
  • Argyroderma planum L.Bolus
  • Argyroderma productum L.Bolus
  • Argyroderma reniforme L.Bolus
  • Argyroderma rooipanense L.Bolus
  • Argyroderma roseum var. delaetii (C.A.Maass) G.D.Rowley
  • Argyroderma schuldtii Schwantes ex H.Jacobsen
  • Argyroderma speciosum L.Bolus

and 2 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.