Subspecies: Åkerhønsegras (Persicaria maculosa subsp. maculosa)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Estenstadmarka | Trøndelag, Norway | 2 | 1 | 0 | 2013-06-07 | |
| Hopsvannet | Vestland, Norway | 1 | 1 | 0 | 2012-09-24 | |
| Hustoft gnr. 150/4 | Rogaland, Norway | 1 | 1 | 0 | 2017-07-19 | |
| Mølledammen i Lomma 1 | Akershus, Norway | 1 | 1 | 0 | 2008-10-22 | |
| Radarstasjonen | Vestland, Norway | 1 | 1 | 0 | 2010-09-21 | |
| Tranevågen skule | Vestland, Norway | 1 | 1 | 0 | 2010-09-10 |
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