- A perennial North American herb (Spigelia marilandica), sometimes cultivated for its showy red blossoms.
- An annual South American and West Indian plant (Spigelia anthelmia).
- The root of Spigelia marilandica or Spigelia anthelmia, used as a powerful vermifuge.
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for pinkroot in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)