Drosera neesii is an erect tuberous sundew known for its large pink blooms. The species is named after Theodor Friedrich Ludwig Nees von Esenbeck, a German botanist with a very long name.

Drosera neesi has a glabrous, somewhat self-supporting stem that grows up to 45 cm tall. The leaves are crescent-shaped and produced in sets of three from a single node. In larger plants, the longer middle leaf can attach to surrounding plants for support. The foliage is generally bright green in colour. The flowers are up to 3cm in diameter, with pink petals. The sepals are densely covered with short glandular hairs.

The species grows in sandy substrates in coastal heathland. It is distributed on the coastal plain north and south of Perth, along the south coast and adjacent hills, and west of Esperance. It comes to bloom at the end of winter into spring and is dormant over summer.

Drosera neesii is most similar to D. sulphurea, sharing an erect stem with crescentic leaves and overlapping in distribution. Drosera neesii is best distinguished by its pink flowers (D. sulphurea has yellow flowers). Outside of flowering, it also has bright green foliage (as opposed to the reddish foliage of D. sulphurea).