
1) Freshwater plant 2) Genus acorus 3) Liliopsid genus 4) Monocot genus
Found on
https://www.crosswordclues.com/clue/acorus

Acorus is a genus of monocot flowering plants. This genus was once placed within the family Araceae (aroids), but more recent classifications place it in its own family Acoraceae and order Acorales, of which it is the sole genus of the oldest surviving line of monocots. The exact relationship of Acorus to other monocots, however, is still debated ...
Found on
http://en.wikipedia.org/wiki/Acorus

(Sweet Flag) These are attractive, herbaceous, aquatic and bog plants. They are great for planting in shallow water and wet places near the edges of a garden pool or pond. A. Calamus has long, sword-shaped leaves, which, when bruised, emit a strong scent. It produces small, yellow flowers in summer and can grow up to 3 feet high. A. gramineus i...
Found on
http://www.encyclo.co.uk/local/10004

Acorus is a genus of plants of the natural order Araceae which includes the calamus.
Found on
http://www.probertencyclopaedia.com/browse/BA.HTM

[
n] - sweet flags
Found on
http://www.webdictionary.co.uk/definition.php?query=Acorus
genus Acorus noun sweet flags; sometimes placed in subfamily Acoraceae
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.