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Viola tricolor   Listen
Viola tricolor

noun
1.
A common and long cultivated European herb from which most common garden pansies are derived.  Synonyms: heartsease, Johnny-jump-up, love-in-idleness, pink of my John, wild pansy.



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"Viola tricolor" Quotes from Famous Books



... orchidaceous plants absolutely require the visits of moths to remove their pollen-masses and thus to fertilise them. I have, also, reason to believe that humble-bees are indispensable to the fertilisation of the heartsease (Viola tricolor), for other bees do not visit this flower. From experiments which I have lately tried, I have found that the visits of bees are necessary for the fertilisation of some kinds of clover; but humble-bees alone visit the red clover (Trifolium pratense), as other bees ...
— On the Origin of Species by Means of Natural Selection • Charles Darwin

... produce seed, and this fertilisation can, in some cases, only be effected by one particular species of insect to which the flower has become specially adapted. Two of our common plants, the wild heart's-ease (Viola tricolor) and the red clover (Trifolium pratense), are thus fertilised by humble-bees almost exclusively, and if these insects are prevented from visiting the flowers, they produce either no seed at all or exceedingly few. Now it is known that field-mice destroy the combs and nests ...
— Darwinism (1889) • Alfred Russel Wallace



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