black land
/ˈblak ˌland/noun
1In singular and plural Land or soil of a dark colour.
- Often with a connotation of richness or fertility; sometimes with a connotation of difficult working..
2 US. A region of tall-grass prairie in Texas that is now regarded as a distinctive ecosystem.
Origin
Late 16th century; earliest use found in William Phillip (fl. 1596–1619), translator. From black + land.