Drosera nidiformis is from a limited locale in South Africa. To show you that appearance is not always a consideration for seggregating species, this plant is a good example. For years it was regarded as a form of D. dielsiana, with which it has many similarities; the two also form a fertile hybrid.
It is a short lived tropical species. There are two forms i am aware of, both with typical tropical care considerations. One is a red form, the other was circulated for decades as D. "sp. Magieliesburg". The latter remains mostly green in full sun, the glands attaining an orange hue in such conditions.
It's cultivation is typical tropical. After flowering the plant may be set back at which time it should be maintained just moist and out of tray water. It likes warm days, cool nights, good air circulation and at least 40% humidity. It is a ready self seeder and sows into other pots making it a somewhat weedy species over time. There is no stratification needed for the seed. Plants are somewhat susceptible to fungal blight, and i find a top dressing of LFS is a good protocol.