Wikipedia
Macrantha
Several plant taxa contain the word macrantha, meaning "large-flowered":
Infrageneric taxa- Cypripedium sect. Macrantha, a group of slipper orchids in the genus Cypripedium
- Acer sect. Macrantha, a group of maples in the genus Acer
- Papaver sect. Macrantha, a group of poppies in the genus Papaver