
any of several closely related species of the genus Lobelia, perennial plants of the family Campanulaceae that are native to North and Central ...
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http://www.britannica.com/eb/a-z/c/24

(Lobelia) These are hardy and tender, annuals and perennials that grow wild in various parts of the Northern and Southern Hemispheres. There are over 200 species, but comparatively few are grown in the garden. Those mainly grown range in size from the dwarf, compact annuals, which only grow a few inches high, to the perennials, which grow 3 feet or...
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http://www.encyclo.co.uk/local/10004

Cardinal-flower is the name commonly given to Lobelia cardinalis, because of its large, very showy, and intensely red flowers. It is a native of North America, but is much cultivated in gardens in Britain.
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http://www.probertencyclopaedia.com/browse/BC.HTM

[
n] - North American lobelia having brilliant red flowers
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http://www.webdictionary.co.uk/definition.php?query=cardinal%20flower
Indian pink 2 Lobelia cardinalis noun North American lobelia having brilliant red flowers
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https://www.encyclo.co.uk/local/20974
No exact match found.