Only the normal Azure Stem can be used to craft planks. The stripped one and both Pith blocks cannot, unlike all vanilla and most other modded wood types. In addition to that, all vanilla and most modded wood types have both a block and item tag to designate blocks that count as a log of a given type, which usually include stripped and non-stripped logs and stripped and non-stripped woods, for example: minecraft:oak_logs or minecraft:warped_stems. Adding this tag (let's say, outer_end:azure_stems) would allow for the crafting recipe for the planks to require any of the 4 types of azure stem and would also make adding crafting recipes through datapacks a bit easier.
Stem blocks that can't be turned into planks
Vanilla blocks tagged as minecraft:oak_logs (just an example)
Only the normal Azure Stem can be used to craft planks. The stripped one and both Pith blocks cannot, unlike all vanilla and most other modded wood types. In addition to that, all vanilla and most modded wood types have both a block and item tag to designate blocks that count as a log of a given type, which usually include stripped and non-stripped logs and stripped and non-stripped woods, for example: minecraft:oak_logs or minecraft:warped_stems. Adding this tag (let's say, outer_end:azure_stems) would allow for the crafting recipe for the planks to require any of the 4 types of azure stem and would also make adding crafting recipes through datapacks a bit easier.
Stem blocks that can't be turned into planks
Vanilla blocks tagged as minecraft:oak_logs (just an example)