| Taxon | Botrychium simplex var. simplex |
| group | Ferns |
| Family | Ophiglossaceae |
| Family common name(s) | adder's-tongue; adder's tongue; moonwort fern |
| Genus common name(s) | grape-fern; grape fern; grapefern; moonwort-fern; moonwort fern; moon-wort fern; moon wort fern |
| Species common name(s) | least moonwort; least moonwort-fern; least moonwort fern; least grape-fern; least grapefern; little grape-fern; little grape fern; little grap fern; small grape-fern; small grape fern; small grapefern; dwarf grape-fern; dwarf grape fern; dwarf grapefern; simple moonwort; Yosemite moonwort; Hitchcock's moonwort; Hitchcock's grape-fern; Hitchcock's grape fern; Hitchcock's grapefern |
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| Common name(s) generally applied to other taxa or multiple taxa | slender moonwort is applied to multiple Botrychium taxa; honesty plant, honesty-plant are more commonly applied to Lunaria; moonwort, moon-wort, moon wort are applied to taxa in multiple families |
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