Subtropics

Biomes O' Plenty

Overworld biome

Dimension	overworld
Bedrock Status	Confirmed in the Bedrock port

Named as a newly added Bedrock biome in the addon's official Marketplace changelog (mirrored by Chunk.gg) — only the name is given, with no accompanying terrain or mob description. The Java mod wiki's corresponding page could not be located at a working URL, so no Java-wiki flavor text is included; this entry is intentionally name-only rather than guessed.

Sources

Official Marketplace changelog (via Chunk.gg) — lists Subtropics among 5 new biomes