Origin of smartweed
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for smartweed
It is a near relative of knot grass and smartweed and Prince's feather.Seed Dispersal
William J. Beal
A good yellow can be obtained by experimenting with smartweed.Practical Basketry
Anna A. Gill
There are several common "weeds" belonging to this family, such as Dock, Sorrel, and Smartweed.Field Book of Western Wild Flowers
The white-throated sparrow, a large and very pretty bird, eats the seeds of smartweed and ragweed.
Ragweed and smartweed seeds are dainties to him as some nuts are to you, and he eats a great many.