From 2speccers2tools wiki

As a female Canartree was growing, she got infected by a Transbruh who interrupted her development. Having already developed past the stage where she could have turned into a male Canartree, it instead turned her into something that was not fully female nor fully male but having traits of both. For example, the mutated individual has a mouth that cannot eat things and instead contains its reproductive organs along with being multicellular just like a typical female Canarflora. Unlike most female Canarflora, however, this individual was not rooted to the ground and could move around and possessed an eye that could sense its surroundings which are features normally seen in the males of this group. Being pretty decently sized and having under developed wings, this mutated Canartree was completely flightless and instead had to use its pseudo-branches to awkwardly crawl along the ground. Having the instincts to breed, it would climb up a nearby Canartree and breed. This would eventually lead to a distinct population of these mutants coming into existence and overtime they would become a completely new taxon known as the Canarwrongs. Canarwrongs come in two morphs, the female only "tree morph", and the hermaphroditic "crawling morph" which both have very different lifestyles. The "tree morphs" are relatively similar to other canartrees in many ways, being multicellular organisms with a well developed skeleton that provides support and their beak flowers containing the ovaries that produce spores. They do have some subtle differences , however, that reflect their bizarre ancestry. This includes their prominent asymmetry, where the wing branches on one side are longer than the others as well as a smaller root system which limits their size. Another important difference is the presence of photo-receptive cells on one side that can tell the difference between dark and light. While these differences make the "tree morph" distinct from related canartrees, they are nothing compared to the "crawling morph" and their adaptations. The "crawling morphs" have a well developed eye on their dorsal side to observe the world around them which helps them navigate in the forests they call home. 9 of their wing branches rest on the ground and function as legs, being supported by their internal skeletons so they don't just collapse upon themselves. Their ancestral root system now gets dragged behind them in the form of a tail, while the 3 dorsal wing branches help collect light for photosynthesis since the "crawling morphs" lack the ability to consume other organisms. Having both male and female reproductive organs in their mouths means the "crawling morphs" of the Canarwrongs can breed with others of their kind in different ways. If two "crawling morphs" encounter one another, they will mate by kissing each other and exchanging genetic information before both individuals wandering off to vomit out spores at a later date. When they encounter a "tree morph" Canarwrong, meanwhile, they will use their limbs to crawl up the trunk and reach the top and breed. The "tree morph" will then later vomit up her fertilized spores.

Since the "crawling morphs" of Canarwrong are both male and female at the same time, they are immune to the Transbruh's ability to change an organisms sex. This means Transbruhs only cause internal bleeding, which is disadvantageous and resulted in the "crawling morphs" creating antibodies in their system that will attack any Transbruhs that enter their system. The "tree morphs" lack the ability to create these antibodies, only getting them secondarily when a "crawling morph" breeds with them. This leaves them more vulnerable to Transbruhs who are more likely to infect them. Since the male sex has completely dissipated in the Canarwrong species, "tree morphs" that get infected by Transbruhs will instead have a painful death as their body systems begin to shut down.