• WordNet 3.6
    • n Trifolium any leguminous plant having leaves divided into three leaflets
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Webster's Revised Unabridged Dictionary
    • n Trifolium (Bot) A genus of leguminous herbs with densely spiked flowers and usually trifoliate leaves; trefoil. There are many species, all of which are called clover. See Clover.
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Chambers's Twentieth Century Dictionary
    • ns Trifolium a genus of small plants of the bean family—the clovers with trifoliate leaves and purple, red, white, or yellow flowers
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Webster's Revised Unabridged Dictionary
L., clover
Chambers's Twentieth Century Dictionary
L. tres, three, folium, leaf.


In literature:

I like to watch the Belgian hares eating their trifolium or pea-pods or grass; graceful, gentle things they are, crowding about Mr.
"The Diary of a Goose Girl" by Kate Douglas Smith Wiggin
Trifolium pratense quinquefolium and others.
"Darwin and Modern Science" by A.C. Seward and Others
H. Muller, "Fertilisation of Flowers," page 186, describes hive-bees visiting Trifolium pratense for the sake of the pollen.
"More Letters of Charles Darwin Volume II" by Charles Darwin
According to the size of the collar, five or six flowers will be sufficient, if you make also the trifoliums.
"The Lady's Album of Fancy Work for 1850" by Unknown
TRIFOLIUM hepaticum flore simplici et pleno.
"The Botanical Magazine, Vol. I" by William Curtis
The luxuriant purple of trifolium, acres of rich colour, glowed in the sunlight.
"Nature Near London" by Richard Jefferies
Trifolium pratense, 73, 94.
"On the Origin of Species by Means of Natural Selection" by Charles Darwin
Trifolium hybridum Alsike clover.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3" by Various
Trifolium pratense L. Pulse family.
"Texas Honey Plants" by C. E. Sanborn
Flowers much as in Trifolium, but in spike-like racemes, small; corolla deciduous, free from the stamen-tube.
"The Manual of the Botany of the Northern United States" by Asa Gray