And the flowers of silver alone, in the finest powder; and birthwort, when scraped and finely pounded, may be sprinkled on the part.    From Wordnik.com.  [On Ulcers] Reference

Aristolochia durior, is a climbing vine and part of the birthwort family.    From Wordnik.com. Reference

The "ransom" that the plant seeks is bits of birthwort pollen on the insect's body.    From Wordnik.com. Reference

Sometimes a pollinated birthwort even bends downward and drops the insect out of its temporary prison!.    From Wordnik.com. Reference

One kind of European birthwort has the habit of "kidnapping" insects that visit its flowers in search of nectar.    From Wordnik.com. Reference

One of the most remarkable examples of this insect-agency in the distribution of the pollen is furnished by the birthwort.    From Wordnik.com.  [Theism: The Witness of Reason and Nature to an All-Wise and Beneficent Creator.] Reference