• Korean Journal of Plant Taxonomy
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• v.47 no.4
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• pp.322-327
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• 2017

We report the distribution of Sparganium subglobosum Morong (Typhaceae) for the first time in Korea. Sparganium subglobosum is readily distinguishable from other Korea Sparganium species by having a short plant height, narrow leaves (${\leq}4mm$), thin inflorescence branches, and a ripe fruiting head globose and ca. 1 cm in diam. The species is under great threat of local extinction due to a recent disturbance of one of only two known distribution sites. Further conservation plans for S. subglobosum and surveys are needed. We provide a revised key to five Sparganium species of Korea, with descriptions, pictures, and figures of S. subglobosum.