Pellaea rotundifolia

Pellaea rotundifolia, the button fern, is a species of fern endemic to New Zealand, where it grows in scrub and forests.[2] It is also a popular garden plant (in zones 8 and 9) and house plant, tolerating low temperatures but not freezing.[3]

Pellaea rotundifolia
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Family: Pteridaceae
Genus: Pellaea
Species:
P. rotundifolia
Binomial name
Pellaea rotundifolia
(G. Forst.) Hook.
Synonyms[1]
  • Allosorus rotundifolius (G.Forst.) Kunze
  • Hemionitis rotundifolia (G.Forst.) Christenh.
  • Platyloma rotundifolium (G.Forst.) J.Sm.
  • Pteris rotundifolia G.Forst.

Pellaea rotundifolia is a compact, evergreen fern that can have more than 30 pairs of round, dark-green, leathery pinnae on fronds up to 18 in (460 mm) in length.[2] The Latin specific epithet rotundifolia means “round-leaved”.[4]

  • Underside of the pinnae
  • In cultivation

Cultivation

It needs acidic and well-drained soil; it does not appreciate the moist, humid conditions that most ferns require so does well with minimal watering.[2]

This plant has gained the Royal Horticultural Society’s Award of Garden Merit.[3][5]

References
  1. Hassler, Michael & Schmitt, Bernd (November 2019). "Pellaea rotundifolium [sic]". Checklist of Ferns and Lycophytes of the World. 8.11. Retrieved 2019-01-05.
  2. Olsen, Sue. Encyclopedia of Garden Ferns. 2007.
  3. "RHS Plantfinder - Pellaea rotundifolia". Retrieved 18 April 2018.
  4. Harrison, Lorraine (2012). RHS Latin for Gardeners. United Kingdom: Mitchell Beazley. ISBN 978-1845337315.
  5. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 75. Retrieved 21 April 2018.
  • Sp. fil. 2:136. 1858.
  • G. Brownlie, "Cyto-Taxonomic Studies on New Zealand Pteridaceae", New Phytologist, Vol. 56, No. 2 (Jul., 1957), pp. 207–209.
  • Gerald J. Gastony and David R. Rollo, "Phylogeny and Generic Circumscriptions of Cheilanthoid Ferns (Pteridaceae: Cheilanthoideae) Inferred from rbcL Nucleotide Sequences", American Fern Journal, Vol. 85, No. 4, Use of Molecular Data in Evolutionary Studies of Pteridophytes (Oct. - Dec., 1995), pp. 341–360.
  • Nico Vermeulen, Encyclopedia of House Plants, Taylor & Francis, 1999, pages 22–23. ISBN 978-1-57958-108-4.


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