Definitions
from The Century Dictionary.
- noun The name of two American (and Asiatic) species of Polygonum—P. arifolium, the halberd-leaved, and P. sagittata, the arrow-leaved tear-thumb: so called from the hooked prickles on the angles of the stem and the petioles, by which the plants are partly supported.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Bot.) A name given to several species of plants of the genus Polygonum, having angular stems beset with minute reflexed prickles.
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