Isonandra lanceolata Wight (S. India, Sri Lanka, Borneo as per POWO)
          


Isonandra villosa Wight (S. India as per WCSP)

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Flora of Peninsular India with keys at species links, if any:
Isonandra lanceolata (Karnataka, Kerala and Tamil Nadu)- S. India, Sri Lanka, Borneo as per POWO;
Isonandra montana (Kerala and Sri Lanka)
Isonandra perrottetiana (Karnataka and Kerala)
Isonandra stocksii (Karnataka and Kerala)
Isonandra villosa (Andhra, Kerala and Tamil Nadu)