Drosera androsacea is a pygmy species native to the inland south west of Western Australia.

Drosera androsacea is a small sundew, typically reaching around 1.5 cm in diameter. The distinctive stipular bud is often tightly packed and forms a pointed, stacked pyramid like structure. The flat lying leaves have a moderately thick petiole that ends in an orbular lamina. At the time of flowering, it often retains only the five most recently formed leaves in a pentagonal pattern. The flowers emerge in spring and are borne on a moderately glandular and variably hirsute scape. The flowers are white to light pink, often with pink streaks. These streaks are especially prominent on the undersides of the petals, which are visible before the flower bud opens.

The species grows in mallee habitats in the interior of south west Western Australia, roughly corresponding to the Wheatbelt Region. It has a preference for exposed, poor substrates that are often compacted or clayey. Its distinctive stipular bud distinguishes it from other flat-lying sundews in its native range.