Aponogeton cordatus

The threats to the species cannot be determined because the precise locality of its only known record is unknown. The species has only been documented from a broad area referred to as "Forêt d'Analamazaotra" which would have included the existing Analamazaotra protected area as well as the surrounding, now heavily degraded areas. The Analamazaotra protected area and surrounding areas are relatively well explored, and the lack of any additional collections of the species suggests that it might be extinct. If Aponogeton cordatus were to be rediscovered, it would likely attract the attention of specialist collectors of aquarium plants, and the collection of living plants of this rare species would represent a significant threat.

This species may occur in the Analamazaotra protected area, but a targeted search is required to relocate the species and assess its status.There is evidence that material identified as this species exists in horticulture outside Madagascar, but the identity of this material requires confirmation. If it can be confirmed, an effort to established ex situ conservation should be made.