Here’s a lovely image from Sumapaz National Park in Colombia. The flower, if I’ve identified it correctly, is Arcytophyllum nitidum. In California, every wildflower you can imagine seems to have been given a common name, but several of the ones I photographed in Colombia apparently don’t have them, this one included.
Generally speaking, the flora in Colombia looked pretty familiar to a Southern California native. A. nitidum, however, is found only in Colombia and Venezuela.