as requested @JoC
May add some as i go along (with my personal comments)
- Threatened Species Programme (discression required but some good Justification criteria)
Threatened Species Programme | SANBI Red List of South African Plants
- STRELITZIA updated 2012 (essentially Cape Plants)
- STRELITZIA 2013 googled this
The Greater Cape Floristic Region of southern Africa, with an estimated 11,423 native vascular plant species, has one of the richest temperate floras in the world. The newly named Extra Cape Subregion comprises the northern, semi-arid part of the Region. Covering 98,900 km2 and incorporating 92% of the Succulent Karoo Biome, the Extra Cape Subregion has an estimated 3715 native vascular plant species – ferns, other spore-bearing vascular plants and flowering plants – of which 40% are endemic.
- OLD “CAPE PLANTS 2000” is also available on line - we used the Hard Cover version.
NOW Favourites available on line
CASABIO. (See for yourself - an enormous amount of research ) Search | CasaBio
If you are looking for species and other taxa, go to Explore Taxa as a Field Guide.
If you are looking for Observations or Collections, go to their list pages in Explore.
OPERATION WILDFLOWER (I search Albums - lots of interesting comments)
Photos of South African Plants
SWEDISH HERBARIUM (not all scanned - but well worth checking) the botanical collection database of the Swedish Museum of Natural History, with information on specimens and species of fungi, lichens, algae, bryophytes and vascular plants.
FERNKLOOF - local but easy to use if one knows the name
All Fernkloof Plants
PACIFIC BULB SOCIETY (worth checking)
Photographs and Information | Pacific Bulb Society
JSTOR (I search for ‘compilation’ and the FLORA CAPENSIS entries- use discretion here)
JSTOR - Wikipedia
I’ll never forget the Aaron Swartz incident
PlantZAfrica the Information Library contains hundreds of articles about southern Africa plants and related topics
ESSENTIAL in the field I still refer to mine
Field guide to the Ericas of the Cape Peninsula by Inge Oliver | Goodreads
Hope this helps