Poarium verticillatum (Miller) Pennell = Stemodia verticillata (Miller) Hassl.
English:
verticillatus,-a,-um;

https://archive.org/stream/mobot31753003541684#page/246/mode/2up
homotypic synonyms:
Erinus verticillatus Miller; Lindernia verticillata (Miller) Britton; Stemodia verticillata (Miller) Hassl.; Stemodia verticillata (Miller) Sprague;

protologue: J. Arnold Arbor. 24: 246 (1943)

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