Between Burchardia and Incarvillea which genus is more widely spread?
Burchardia Burchardia is a genus of herbs that are endemic to Australia. The genus is named for Johann Heinrich Burkhardt, a German botanist.
Searsia lancea Searsia lancea commonly known as karee (English and Afrikaans), "hlokoshiyne" (isiZulu), "umhlakotshane" (amaXhosa), or "mokalaabata" (Northern Sotho), is an evergreen, frost hardy, drought resistant tree, which can reach up to 8 metres in height with a 5 metre spread. In North America, where it is naturalized, it is known as African sumac and willow rhus. It is one of the most common trees on the Highveld and in the Bushveld in South Africa, but not found in the Lowveld.