How euphorbias and cacti cope with water shortage.
11 Aug 2011
Image: Anna FahertyThis sweet noor (Euphorbia coerulescens) from the ‘Old world’ of Africa and Madagascar is covered in sharp spi ...more
Image: Matthew HighThis is an example of convergent evolution, where different species in disparate locations have adapted to the ...more
Image: Chris GuyCactus spines evolved from leaves, while euphorbia spines derived from stems (or the paired ‘stipules’ at the ...more
Image: Daniel PeckhamDense coverings of spines or hairs can even create a microclimate around a plant, insulating its sensitive gro ...more
Image: Dan MullenThe stems of many euphorbia and cacti also look similar. Ribbed structures like this allow the body of a plant ...more
Keep up to date with events and news from Kew