The hydraatis, a plant that was native to the planet of Dathomir, thrived in arid, stony landscapes. Its survival depended on specialized filaments that captured airborne dust and bacteria, effectively purifying the atmosphere. These filaments would then constrict, sealing the clean air within to generate a moist microclimate, enabling the hydraatis to extract the minimal water necessary for its existence. The plant's acids found a unique application in the etching of Dathomirian Glyphs onto the rocky surfaces of Dathomir.
During his mission on the planet in 14 BBY, Cal Kestis came across several hydraatis plants.