[Hilary]

Epimedium perralderianum, Bishop's hat

Another plant seen in the Royal Botanic Garden, Madrid in April 2018 and which is native to Algeria

Here is a link which gives information about this perennial
https://www.rhs.org.uk/Plants/6491/i-Epimedium-perralderianum-i/Details

Epimediums are mentioned in
A VISIT TO SOUTH AFRICA. PART 2:
PRIVATE AND COMMUNITY GARDENS
By Valerie Whittington
THE MEDITERRANEAN GARDEN number 89, July 2017