Position in a system
| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Bikonta |
| Corticata | |
| Archaeplastida | |
| kingdom | Plantae Haeckel, 1866 - plants |
| divisio | Magnoliophyta - flowering plants |
| class | Liliopsida - monocotyledons |
| order | Alismatales Dumortier |
| family | Alismataceae Vent. |
| genus | Sagittaria L. - arrowhead |
| species | Sagittaria rigida Pursh - Canadian Arrowhead |
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