Plant hunting in southern Africa

By Joseph Milton, FT science intern

Iain Darbyshire, a Kew Gardens botanist, recently identified a new plant species while walking through the garden’s glasshouses. The news of his chance discovery, and of the other new species found by Kew botanists this year, reminded me of my own plant collecting expeditions, part of a PhD in evolutionary botany, which took me across southern Africa.

After weeks tackling the bureaucracy of obtaining permits to collect plant specimens – many countries are understandably cautious about allowing foreigners to remove their flora – the slightly odd adventure that is plant collecting began.

I travelled widely in South Africa in a tiny VW Chico (picture a no-frills Polo circa 1990) taking in the three Cape Provinces and also visiting Namibia in a search for exotic groundsel species. The aim was to reclassify them based on their DNA.

Gardeners in the UK may be familiar with (and not entirely keen on) groundsels, but most will be unaware that they belong to one of the largest and most diverse plant genera, ranging from the familiar diminutive weeds to small trees. Southern Africa alone contains somewhere between 350 and 500 species, many unique to the area, and all scientifically neglected since the 19th Century.

Based in Cape Town, I drove east along the Garden Route as far as East London, and to Springbok in the terracotta-red, sun-baked north. The search found me combing beaches, scrambling up mountains and strolling through forests and heathlands – highlighting the ecological diversity both of groundsels and of South Africa. In Namibia, scouring the desert along the Skeleton Coast yielded a little known succulent species, kept alive by coastal mist.

A peculiarity of looking for plants is the need to spend a disproportionate amount of time staring at the ground just ahead, but this makes the view even more breathtaking when you do happen to look up. In Namibia, the vast barren landscapes are something to behold (left). Even in my native Scotland, I have never seen such wide, open expanses without signs of human habitation.

Concentrating on the ground also means there is a danger of stumbling into unsuspecting wild animals. A small wildcat was the worst I encountered, but it was enough to make me sing as I walked alone in the wilderness, in the hope of scaring off anything more threatening before I encountered it face to face.

Evenings were spent in cheap hostels – one an ex-apartheid era jail, another an ex-mental hospital – pressing collected specimens and cataloguing the day’s finds, followed by a well-earned beer or two with my PhD supervisor and sometime travelling companion, Professor Richard Abbott.

Southern Africa is a fascinating area to visit. Namibia, which was German South West Africa until 1915, is an odd and sometimes uncomfortable mix of traditional Africa and colonial era Germany.

In South Africa, although witnessing overt racism from the white community was not uncommon and the spectre of HIV/AIDS was ever present, there was a lingering feeling of hope for the future and a sense that things were better, and fairer, than they had ever been.

Although I successfully collected many species of interest in southern Africa, I wasn’t fortunate enough to find any that were new to science. Perhaps I should have just gone to Kew instead, but I’m glad I didn’t.

The world of research

The science blog is no longer updated but it remains open as an archive.

Clive Cookson, the FT's science editor, picks out the research that everyone should know about, in fields from astronomy to zoology. He also discusses key policy issues, from R&D funding to science education. He'll cover the weird and wonderful, as well as the serious side of science.

The FT’s Science blog: a guide

Comment: To comment, please register with FT.com, which you can do for free here. Please also read our comments policy here.
Contact: You can write to Clive using this email format: firstname.surname@ft.com
Time: UK time is shown on posts.
Follow: Links to the blog's Twitter and RSS feeds are at the top of the page. You can also read the Science blog on your mobile device, by going to www.ft.com/scienceblog

Full list of FT blogs

Featured blogs

Health blog

Dr Margaret McCartney and others discuss the future of healthcare

Tech blog

Dispatches from the FT's San Francisco experts