Thelymitra longifolia
| White sun orchid | |
|---|---|
| Thelymitra longifolia near Tōtaranui | |
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Monocots | 
| Order: | Asparagales | 
| Family: | Orchidaceae | 
| Subfamily: | Orchidoideae | 
| Tribe: | Diurideae | 
| Genus: | Thelymitra | 
| Species: | T. longifolia  | 
| Binomial name | |
| Thelymitra longifolia | |
| Synonyms | |
Thelymitra longifolia, commonly called the white sun orchid, common sun orchid or maikuku, is a species of orchid in the family Orchidaceae that is endemic to New Zealand. It was the first of a large number of similar species to be described and is therefore the type species. It has a single grass-like leaf and up to five white flowers