• WordNet 3.6
    • n cocklebur burdock having heart-shaped leaves found in open woodland, hedgerows and rough grassland of Europe (except extreme N) and Asia Minor; sometimes cultivated for medicinal and culinary use
    • n cocklebur any coarse weed of the genus Xanthium having spiny burrs
    • ***
Webster's Revised Unabridged Dictionary
    • n Cocklebur (Bot) A coarse, composite weed, having a rough or prickly fruit; one of several species of the genus Xanthium; -- called also clotbur.
    • ***
Century Dictionary and Cyclopedia
    • n cocklebur The clot-bur, Xanthium Strumarium, a weedy composite plant with close spiny involucres.
    • n cocklebur The agrimony, Agrimonia Eupatoria.
    • n cocklebur The burdock, Arctium Lappa.
    • ***


In literature:

I heard her tell about the cockleburs.
"Slave Narratives: A Folk History of Slavery in the United States From Interviews with Former Slaves" by Work Projects Administration
Dey laffs an' laffs while she go steppin' down through de 'lasses lak a turkey walkin' on cockleburs.
"Slave Narratives: a Folk History of Slavery in the United States From Interviews with Former Slaves, North Carolina Narratives, Part 2" by Work Projects Administration
In each prickly fruit of a cocklebur there are two seeds, only one of which grows the first year, the other surviving to grow the second year.
"Seeds of Michigan Weeds" by W. J. (William James) Beal
A rope to your foot, cockleburs in your hair, and a clothespin on your tongue.
"The Roycroft Dictionary" by Elbert Hubbard

In poetry:

If only you knew what trash gives rise
To verse, without a tinge of shame,
Like bright dandelions by a fence,
Like burdock and like cocklebur.
"I Have No Use For Odic Legions" by Anna Akhmatova

In news:

What was I doing in 100 degree August heat wearing river sandals and walking the shores of Lake Powell through cockleburs, thistles, tumbleweed and tamarisk.