ˌsajəˈta(a)rēə noun
Usage: capitalized
Etymology: New Latin, from Latin sagitta + New Latin -aria
: a genus of aquatic herbs (family Alismataceae) of temperate and tropical regions having basal often sagittate or hastate leaves and scapose flowers with 3 sepals and 3 deciduous white petals — see arrowhead , wapatoo