Genderflora

Genderflora is a floragender defined as a gender that blooms and evolves based on weather and atmosphere; similar to genderfluid but more plant-like. What plant-like means is up to the interpretation of who identifies as this gender. It was coined (or before) September 6th, 2015 by pride-flags-for-us on Tumblr.

Flags
The first genderflora flag was created on that same date by pride-flags on DeviantArt.

The second was also coined by them, on October 16, 2015. Neither flag's colours have a definitive meaning.