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Ceratophyllum echinatum A.Gray is a synonym of Ceratophyllum muricatum subsp. australe (Griseb.) Les — Preceding unsigned comment added by 65.94.152.68 ( talk) 17:44, 17 October 2016 (UTC) reply

USDA PLANTS calls this species "spineless hornwort". How best is this inaccurate information included in the Wikipedia, if at all? — Hyperik ⌜ talk⌟ 15:09, 25 July 2019 (UTC) reply

It appears to be a name that was coined (or at least endorsed) by John Kartesz (search at http://bonap.net/tdc). It was picked up by USDA PLANTS and then spread to ITIS. A redirect for "spineless hornwort" exists. We could just not mention it in the article (I think I've come across some other Kartesz/PLANTS names that were contradictory). Plantdrew ( talk) 04:08, 26 July 2019 (UTC) reply