Klines are divided in two parts, the main body which is a long thick vine like stem with a row of spikes in one side, and the roots which the plant can bury in the lava lakes deeper than other firava plants. The main source of nutrients comes from attaching themselves to other plants using the spikes to extract them. If the plant hasn't found a vessel it would use its roots to extract nutrients from the lake floor, this can only be sustained for three months as the roots don't have the capacity to provide the plant for longer periods of time before succumbing to the lava.
At one end of the Kline, flowers grow. This is the reproductive organ of the plant and grows a single flower every 4 months which can live as long as the Kline is alive and attached to another Firava if it is not pollinated.
The spikes of the Kline are used for two things: to attach and to extract nutrients. They climbs their supports by hammering the spikes in the Firava's trunk after growing upwards a few centimetres. After hammering the spikes in the trunk, these same spikes grow until they find a vessel and suck the nutrients. The Kline does not need as much nutrients to survive as the vessels transport and this ensures that both plants are able to survive.