Over the next few days, Kace began to look forward to his talks with Lilly as he regained his strength. However, he was indeed shocked to learn that Lilly was Elderbeard's granddaughter. When he questioned how that was possible, he received an answer that he had never expected.
The Treant race created their offspring through pollination. Whether male or female they were each capable of producing fruits or flowers. The flowers would release the Treant's pollen into the air, which would be absorbed by any Treant's bark willing to accept it. Officially making them 'pregnant' regardless of gender.
The accepting Treant would then mix the DNA signature of the pollen with their own. Shaping what would be born from their combined seed however they wanted. Once that was decided, their body would bear fruit. When it was ripe, it would fall from their branches. Eventually, the seed carried inside the fruit would absorb its nutrients before taking root in the soil.