1879, Eduard August Regel
Iris regeliMaxim. ex Regel (Eduard August Regel, 1879). Subgenus Limniris, Series Tenuifoliae;In T rudy Imp. S.-Peterburgsk. Bot. Sada vi. (1879) 495. Very little is known about this plant and there for it can not be dismissed as a proper species. It may simply be a small form of Iris tenuifolia but there has been little research to validate that conclusion.
See below:
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