New records of three plant species (Eleocharis dulcis, Rumex longifolius and Persicaria erectominor) from Shimane Pref. with some notes on P. erectominor var. erectominor f. viridiflora

Abstract

Eleocharis dulcis, Rumex longifolius and Persicaria erectominor were newly found from Shimane Pref. The Hii River in Izumo City revealed the western limit of the distribution of R. longifolius and the Lake Nakaumi is the second record of P. erectominor from the area along the Sea of Japan in Kinki-Chugoku District. Persicaria erectominor var. erectominor f. viridiflora showed some difference from f. erectominor on phenology, morphology and distribution.