vocabularies

The role/form names of planters that share one slot-profile (an open soil-holding draining vessel) and differ only by use/form: flower-pot (a standard round pot), window-box (a long rectangular sill/rail box), trough (a long deep garden trough), grow-bag (a flexible fabric/plastic growing bag). A growing vocabulary (L13). FlowerPot / WindowBox / GrowBag are NOT classes — they add no exclusive slot over Planter, so they are values here (the utility_vessel_type / basket_type fold discipline); a form that adds a real exclusive slot mints a child when seeded.

Answers the question: planter type.