Polystichum rigens Tagawa
  • Acta Phytotax. Geobot. 6(2): 91. 1937 [30 May 1937]

Cite taxon page as 'WFO (2023): Polystichum rigens Tagawa. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001117072. Accessed on: 27 Mar 2023'

General Information

Plants evergreen. Rhizome erect, stout, densely scaly; scales brown or dark brown, lanceolate. Fronds 40-60 cm; stipe stramineous, 14-30 cm, 3-5 mm in diam. at base, densely scaly; scales brown to dark brown, ovate and lanceolate. Lamina bipinnatipartite, ovate to narrowly oblong, 26-50 × 11-16 cm, rounded-cuneate or nearly truncate, acuminate; rachis without proliferous bulbils, abaxially densely scaly; scales light brown or brown, ovate and lanceolate, margins ciliate, not twisted. Pinnae 14-23 pairs, alternate, slightly ascendant or attached at right angles to rachis, linear-lanceolate, sometimes falcate, middle pairs 6-11 × 1.5-2.5 cm, obliquely cordate or rounded-cuneate, shortly stalked, pinnatipartite with 1 or 2 pairs of basal free pinnules, acuminate. Pinnules and lobes 10-15 pairs, alternate, ascendant, narrowly ovate or deltoid-ovate, basal acroscopic lobes largest, 1-2 cm × 5-6 mm, bases rounded, margins with spinulose forward-pointing teeth, apices acuminate and spinulose; abaxially scaly; microscales filiform, strongly ciliate at base; frond texture leathery; venation pinnate on pinnules and lobes, slightly concave abaxially, flat or slightly concave adaxially. Sori in 1 row on each side of midrib; indusia present, subentire.

  • Provided by: [B].Flora of China @ efloras.org
    • Source: [
    • 1
    • ]. 

     Information From

    World Flora Online Data. 2021.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of China @ efloras.org
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Missouri Botanical Garden
    World Flora Online Data. 2021.
    • C CC0 1.0 Universal (CC0 1.0).
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • D CC0 1.0 Universal (CC0 1.0).