Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Delissea subcordata -  Delissea subcordata is a rare species of flowering plant in the bellflower family known by the common names Koʻolau Range delissea and oha. It is endemic to Hawaii where it is known only from the island of Oahu. It is now only found in the Waianae Mountains and it is believed to be extirpated from the Koʻolau Range where it once occurred. As of 2008 there were 40 individuals remaining 28 of which were mature plants.
The answer is:
Plant