Copy permalink to share
Dennstaedtiaceae
Sitobolium

not marked as a favorite taxon Sitobolium Desvaux. Common name: Hay-scented Fern.

A genus of about 5 species, of e. Asia and e. North America. Phylogenetic studies show that Dennstaedtia as traditionally interpreted is polyphyletic; our temperate, eastern North American species is related to Asian, temperate species, and should be placed in Sitobolium (Triana-Moreno et al. 2022, 2023).

Glossary (beta!)

Subfamily: Dennstaedtioideae.

ID notes: Sitobolium punctilobulum can be distinguished from other woodland ferns with deciduous fronds of generally similar size and shape (such as Athyrium, Dryopteris, and Amauropelta noveboracensis) by the following characteristics: leaves yellow-green or pale-green in color, with whitish-gray glandular trichomes, petioles silvery-pilose and lacking any scales, leaves borne scattered (as clonal patches) from long-creeping rhizomes, sori tiny (< 0.5 mm in diameter), with a whitish cup-like indusium, and borne near the margin of the leaf segments.

References: Kramer & Green (1990); Nauman & Evans (1993) In Flora of North America Editorial Committee (1993b); Schwartsburd et al. (2020); Triana-Moreno et al. (2022); Triana-Moreno et al. (2023). Show full citations.

Show in key(s)

Show parent family | Show parent in key(s)

Show species in Sitobolium

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image #1 of Sitobolium© Gary P. Fleming | Sitobolium punctilobulum
image #2 of Sitobolium© Erik Danielson | Sitobolium punctilobulum source | Original Image ⭷

Feedback

See something missing or incorrect about Sitobolium? Let us know here:
  1. Please include your name and if possible, email in case when need to clarify what you wrote.
  2. If you opt out of including email, please be as specific as possible (e.g., which photo is incorrect?)
  3. Please do not submit questions asking to identify plants or about horticultural topics (e.g., how do I control an invasive plant in my garden?). Instead, those questions can be submitted here for the Carolinas region only.
  4. Please do not send us feedback about unkeyed species as this work is ongoing.
  5. Please allow time for flora edits to show in our next data release. We greatly appreciate your feedback but may require extra time to research complicated taxonomic issues.