
1) Genus mertensia 2) Plant genus
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https://www.crosswordclues.com/clue/mertensia

Mertensia is a genus of about 40 species of perennial herbaceous plants with bell-shaped blue flowers opening from pink-tinged buds. This is one of several plants commonly called bluebell. The genus is named after the German botanist Franz Carl Mertens. There are about 40 species, including: ...
Found on
http://en.wikipedia.org/wiki/Mertensia

genus of about 50 temperate North American and Eurasian species of plants in the family Boraginaceae, including the Virginia cowslip, or Virginia ...
Found on
http://www.britannica.com/eb/a-z/m/75

These hardy perennials are natives to North America and Japan. They grow from 12 to 24 inches high and bear clusters of bell-shaped flowers. M. pulmonarioides (Bluebells/Virginian Cowslip) is a plant with oval, blue green leaves that die by mid-summer. The tubular-bell-shaped, deep blue flowers hang in clusters in the leaf axils, in the spring. M. ...
Found on
http://www.encyclo.co.uk/local/10004

Mertensia is a genus of hardy herbaceous plants belonging to the family Boraginaceae.
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http://www.probertencyclopaedia.com/browse/BM.HTM

[
n] - a genus of herbs belonging to the family Boraginaceae that grow in temperate regions and have blue or purple flowers shaped like funnels
Found on
http://www.webdictionary.co.uk/definition.php?query=Mertensia
genus Mertensia noun a genus of herbs belonging to the family Boraginaceae that grow in temperate regions and have blue or purple flowers shaped like funnels
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.