
1) Bog plant 2) Chelone glabra 3) Marsh plant 4) Shell-flower 5) Snake-head 6) Snakehead 7) Swamp plant 8) Turtlehead
Found on
https://www.crosswordclues.com/clue/shellflower

any of about 250 species of plants in the genus Alpinia of the ginger family (Zingiberaceae), native to warm climates of Asia and Polynesia. They ...
Found on
http://www.britannica.com/eb/a-z/s/80

[
n] - showy perennial of marshlands of eastern and central North America having waxy lanceolate leaves and flower with lower part creamy white and upper parts pale pink to deep purple 2. [n] - cultivated for its shining oblong leaves and arching clusters of white flowers with shell-pink shading and crinkled yellow lip with variegated mag...
Found on
http://www.webdictionary.co.uk/definition.php?query=shellflower
snakehead noun showy perennial of marshlands of eastern and central North America having waxy lanceolate leaves and flower with lower part creamy white and upper parts pale pink to deep purple
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.