Endemic

Saplings in vanilla Minecraft grow the same tree whatever the biome. Endemic makes the result depend on the biome where a sapling is planted. Oaks favor temperate forests, extreme hills and plains, spruces favor taiga, forests, extreme hills, mountains and snowy or frozen biomes, birches favor temperate forests and extreme hills, jungle trees grow in tropical jungles, acacias in arid savannas, and dark oaks only in the dark forest. Swamp oaks, super birches and pine spruces are among the variants the mod can produce.

Planting a sapling outside its own biome triggers a sequence of attempts: a standard tree is tried first, then a stunted one, and a dead tree is the last fallback. A setting can also turn off non-native growth, so such saplings never grow at all. Endemic works mainly on biome categories, so a sapling can spread into nearby non-native land, and ocean and river biomes allow trees to grow a little further outside their native habitat. Sky light requirements can be configured, with a light level of 0 giving unmodified growth and a level of 1 changing how trees grow in caves. The mod is server-side only and is open source under the GNU Lesser General Public License v3.0 or later.