Dryopteridaceae

Royal tonguefern

Elaphoglossum crassifolium (Gaudich.) W.R.Anderson & Crosby

Family: Dryopteridaceae
Genus: Elaphoglossum

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Royal tonguefern: Elaphoglossum crassifolium (syn E. reticulatum)—Hoe a māui or Maui's paddle. Native to Hawaii. Photographed at University of California Botanical Garden, Berkel — Photo: John Rusk from Berkeley, CA, United States of America, CC BY 2.0, from Wikimedia Commons

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Common names

By language (1)

English: Royal tonguefern

Synonyms

Acrostichum crassifolium Gaudich.
Acrostichum reticulatum Kaulf.
Anetium reticulatum (Kaulf.) C.Presl
Elaphoglossum reticulatum (Kaulf.) Gaudich.
Hymenodium crassifolium (Gaudich.) Fée
Hymenodium reticulatum (Kaulf.) T.Moore

Characteristics

Growth habit: Forb/herb
Lifespan: Perennial
In the US and Canada: Hawaii: native

Photos

Photo: John Rusk from Berkeley, CA, United States of America, CC BY 2.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 2.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 2.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 2.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 3.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 3.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 3.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 3.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 3.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 3.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 3.0, from Wikimedia Commons
Photo: Forest and Kim Starr, CC BY 3.0, from Wikimedia Commons

More in Elaphoglossum

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.