Neon daisies

Neon daisies, a photo by andiwolfe on Flickr.

I don't know what genus and species of Asteraceae this is, but the common name should be "neon daisy." The color is so vibrant, even in partial shade. These were growing in Kirstenbosch Botanical Garden, Cape Town. I'm sure they grow wild somewhere in South Africa, but I'm not sure where.