The bulk update request #9663 is pending approval.

create implication black_grass (2) -> grass (80739)
create implication blue_grass (22) -> grass (80739)
create implication brown_grass (0) -> grass (80739)
create implication green_grass (265) -> grass (80739)
create implication grey_grass (6) -> grass (80739)
create implication orange_grass (26) -> grass (80739)
create implication pink_grass (18) -> grass (80739)
create implication purple_grass (33) -> grass (80739)
create implication red_grass (22) -> grass (80739)
create implication tan_grass (1) -> grass (80739)
create implication teal_grass (5) -> grass (80739)
create implication white_grass (3) -> grass (80739)
create implication yellow_grass (30) -> grass (80739)

Reason: All colors of grass, whether realistic (blue, green, tan, teal, yellow) or fantastical.