Drosera rubrifolia is a rosetted sundew endemic to the Western Cape, South Africa. It is named for the vibrant ruby-red coloration of the plants.
Drosera rubrifolia is a small sundew, with flat-lying rosettes that grow to around 3cm in diameter. The petioles are broad and dilated towards the center. The laminae are wedge-shaped and broader than the adjoining petioles. The leaves are very slightly raised off the ground to keep them above pooled water. The plants are a vibrant red colour in nature. The species tends to grow in clumps.
The sundew is endemic to the mountains north-west of Cape Town in South Africa. It grows in permanent seepages in rocky slopes. It is known from the mountains near Ceres and in Bainskloof Pass.
Drosera rubrifolia is similar to many of the rosetted sundews in the Western Cape. The obvious glandless petiole distinguishes it D. trinervia and D. afra (The entire leaf of D. trinervia and D. afra is covered with glands). The leaf shape is most similar to D. slackii, which shares an obvious, albeit shorter dilated petiole. The undersides of unfurling leaves in D. slackii have fleshy, tentacle-like projections which are absent in D. rubrifolia.