Board Thread:Naruto Discussions/@comment-44437908-20200710093820/@comment-1751565-20200711145038

I have always speculated something similar tbh. Hashirama probably uses Wood Release with Yang release due to Ashura's Reincarnations having a natural affinity for it... after all the words of the manga states "He changes chakra into life force"....when using his wood release...In Naruto's case as a reincarnation of Ashura, it was subtly hinted in him getting the Yang Half of Kurama as opposed to Yin (for plot)...and we also see that his Yang Kurama Chakra Mode imbued more Life Energy into Yamata's and White Zetsu's Wood Release...which made them back into their Tree forms (very similar to how Hashi's Wood Release looks).

I also speculate something similar for all the Kekkei Genkais and as to why their are different variations of each Kekkei Genkai when you think of it..... for example...

Lava Release: Molten Rock (Roshi), Acidic Liquid (Mei), Quicklime & Ashstone (Kurotsuchi), Vulcanized Rubber (Dodai)

Magnet Release: Iron Sand (Shinki & 3rd Kaze), Gold Dust (Rasa & Gaara), Cursed Seals and Sand (Shukaku & Gaara)

...just to name a few.

I think there are specifics to the different variations. Maybe why they have different forms is because of different based affinities by the users. For instance, Kurotsuchi most likely has a Base Earth affinity...thus her lava style takes the form of quicklime, compared to Mei who most likely has an affinity of Water, thus her lava resembles Acid instead.

Just theories, but would be interesting if it were like this...