Isoetes L.
Lahnanruohot
Quillworts
Isoetes lacustris L.
Tummalahnanruoho
Isoète des lacs
Vårtsporigt braxengräs
See-Brachsenkraut
Isoëtes lacustre ; [TSF] , #72
Isoetes lacustris ; [RK] , 40
Isoetes echinospora Durieu
Isoète à spores hérissées
Taggsporigt braxengräs
Vaalealahnanruoho
Spring Quillwort
Stachelsporiges Brachsenkraut
Isoëtes echinosporum ; [TSF] , #73
Isoetes echinospora ; [RK] , 40
1305x979 (~165Kb) Finland: Juva, Hirvensalo, Sikolahti, 4.8.2006, Photo © Harri Arkkio
Isoetes muricata Durieu, 1864
Spiny-spored Quillwort
Isoetes echinospora var. braunii Durieu, 1864 (preocc.)
Isoetes echinospora var. muricata Durieu, 1864
Isoetes echinospora var. robusta Engelmann, 1867
Isoetes muricata ; [TFG] , 252
Isoetes muricata Durieu, 1864;
Isoetes melanopoda Gay & Durieu, 1864
Black-based Quillwort
Midland Quillwort
Isoetes melanopoda ; [TFG] , 254
Isoetes melanopoda Gay & Durieu, 1864;
Isoetes butleri Engelmann, 1878
Butler's Quillwort
Limestone Quillwort
Isoetes butleri ; [TFG] , 254
Isoetes butleri Engelmann, 1878;
Isoetes virginica Pfeiffer, 1937
Virginia Quillwort
Isoetes virginica ; [TFG] , 254
Isoetes virginica Pfeiffer, 1937;
Isoetes riparia Engelmann, 1846
Shore Quillwort
Isoetes riparia ; [TFG] , 256
Isoetes riparia Engelmann, 1846;
Isoetes saccharata Engelmann, 1867
Sugary-spored Quillwort
Isoetes saccharata v. palmeri Eaton, 1901
Iosetes riparia v. palmeri (Eaton) Proctor, 1949
Isoetes saccharata ; [TFG] , 256
Isoetes saccharata Engelmann, 1867;
Isoetes eatoni Dodge, 1896
Eaton's Quillwort
Isoetes eatoni ; [TFG] , 256
Isoetes eatoni Dodge, 1896;
Isoetes macrospora Durieu, 1864
Big-spored Quillwort
Isoetes macrospora ; [TFG] , 258
Isoetes macrospora Durieu, 1864;
Isoetes tuckermani Braun, 1867
Tuckerman's Quillwort
Isoetes tuckermani ; [TFG] , 258
Isoetes tuckermani Braun, 1867;
Isoetes foveolata Eaton, 1896
Pitted Quillwort
Isoetes foveolata ; [TFG] , 258
Isoetes foveolata Eaton, 1896;
Isoetes engelmanni Braun, 1846
Appalachian Quillwort
Engelmann's Quillwort
Isoetes engelmanni ; [TFG] , 258
Isoetes engelmanni Braun, 1846;
Isoetes asiatica (Makino) Makino
29.4.2022 (14)
Some related literature:
[RK]; Hämet-Ahti, Suominen, Ulvinen & Uotila, 1998
Retkeilykasvio (Field Flora of Finland) (Edn 4)
Retkeylykasvio
: 1-656
[TFG]; Wherry, 1995
The Fern Guide: Northeasten and Midland United States and Adjacent Canada
Fern Guide
[TSF]; Thommen, 1951
Taschenatlas der Schweizer Flora
If you have corrections, comments or
information to add into these pages, just send mail to
Markku Savela
Keep in mind that the taxonomic information is copied from various sources, and may include many inaccuracies. Expert help is welcome.