Any rough or prickly envelope of the seeds of plants, whether a pericarp, a persistent calyx, or an involucre, as of the chestnut and burdock. Also, any weed which bears burs.
Please select one of the packages above.
Note: all packages are cumulative, so if you select the 'Cards' package, you receive the set of custom greeting cards, the frame-able print, the gold ink certificate & button, and the digital certificate of authenticity. For details on packages, click here.