Senega alba

Senega alba
Secure
Secure (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Polygalaceae
Genus: Senega
Species:
S. alba
Binomial name
Senega alba
(Nutt.) J.F.B.Pastore & J.R.Abbott
Synonyms[2]
  • Asemeia alba (Nutt.) Raf.
  • Polygala alba Nutt.

Senega alba, commonly called white milkwort,[3] is a species of flowering plant in the milkwort family.

Description

It is an erect perennial, reaching 45 cm (18 in) tall.[4] It produces small white flowers, distributed in an elongated raceme. It flowers in late spring and early summer.

Taxonomy

This species was first named Polygala alba, placing it in the Polygala genus by Thomas Nuttall in 1818. It was suggested that it be moved to Asemeia by Constantine Samuel Rafinesque in 1838, but its accepted name was published in 2023 by José Floriano Barêa Pastore and J. Richard Abbott when they placed it in Senega. Together with its genus it is classified in the Polygalaceae family and it has 15 synonyms.[2]

Table of Synonyms
Name Year Rank Notes
Asemeia alba (Nutt.) Raf. 1838 species ≡ hom.
Asemeia leptopsis Raf. 1838 species = het.
Polygala alba Nutt. 1818 species ≡ hom.
Polygala alba var. brachystachya Chodat 1893 variety = het.
Polygala alba var. leptostachya Chodat 1893 variety = het.
Polygala alba var. mexicana Chodat 1893 variety = het.
Polygala alba var. schaffneri Chodat 1893 variety = het.
Polygala alba var. suspecta S.Watson 1886 variety = het.
Polygala alba var. tenuifolia (Pursh) S.F.Blake 1916 variety = het.
Polygala beyrichii Torr. & A.Gray 1838 species = het.
Polygala hemipterocarpa var. bracteata Chodat 1893 variety = het.
Polygala jamesii Raf. 1832 species = het., nom. illeg. superfl.
Polygala scoparia Benth. 1839 species = het., nom. illeg. homonym. post.
Polygala senega var. tenuifolia Pursh 1813 variety = het.
Polygala torreyi G.Don 1831 species = het.
Notes: ≡ homotypic synonym; = heterotypic synonym

Distribution

It is native to North America, where it is found in Canada, Mexico, and the United States.[5] In the United States, its range is concentrated in the Great Plains and the Southwest.[6] Its natural habitat is in rocky or sandy dry prairies.[7]

References

  1. ↑ NatureServe (31 July 2026). "Senega alba". NatureServe Explorer. Arlington, Virginia. Retrieved 14 August 2026.
  2. 1 2 "Senega alba (Nutt.) J.F.B.Pastore & J.R.Abbott". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 13 August 2026.
  3. ↑ NRCS. "Polygala alba". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 15 February 2018.
  4. ↑ Diggs, George; Lipscomb, Barney; O'Kennon, Robert (1999). Flora of North Central Texas. Botanical Research Institute of Texas. p. 896.
  5. ↑ Polygala alba Lady Bird Johnson Wildflower Societey
  6. ↑ Kartesz, John T. (2014). "Polygala alba". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). Retrieved 15 February 2018.
  7. ↑ White Milkwort Polyagala alba Kansas Wildflowers and Grasses