Senega polygama
(Walter) J.F.B. Pastore & J.R. Abbott
Racemed Milkwort
Identity
Unique IDELEMENT_GLOBAL.2.136232
Element CodePDPGL021B0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPolygalales
FamilyPolygalaceae
GenusSenega
SynonymsPolygala polygamaWalt.
Other Common NamesPolygale polygame (FR) racemed milkwort (EN)
Concept ReferenceKartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic CommentsPastore et al. (2023) transfer Polygala polygama to Senega polygama but do not publish combinations for infrataxa in the species. FNA (vol. 10, 2021) and Weakley (2025) also do not distinguish infrataxa.
Conservation Status
Rank MethodExpertise without calculation
Review Date2016-08-16
Change Date1984-06-25
Edition Date1995-03-03
Edition AuthorsM. E. Stover, TNC-HO
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Rank ReasonsWidespread in the United States and Canada.
Range Extent CommentsNova Scotia, Quebec, and Ontario, south through the eastern United States to Florida, west to Minnesota, Iowa, Illinois, Kentucky, Tennessee, Arkansas, Oklahoma, and Texas.
Ecology & Habitat
Diagnostic Characteristics
Loose raceme with well-spaced, distinctly pediceled flowers; cleistogamous flowers from base of plant; largest sepals twice as long as wide; corolla distinctly fringed; flowers pink-purple to white; biennial or perennial.
Habitat
Dry woods and openings (Fernald 1950). Ohio: open to semi-open situations in dry to moist usually sandy soil: open woods, woods borders, dunes, banks, and fields (McCance and Burns 1984). Florida: dry pinelands and coastal dunes (Wunderlin 1982).
Reproduction
Showy chasmogamous flowers in terminal racemes; also cleistogamous flowers in underground, prostrate, or aerial racemes. Seeds have a conspicuous aril, promoting dispersal by ants; the subterranean cleistogamous flowers are self-"dispersed".
Terrestrial HabitatsForest/WoodlandWoodland - HardwoodWoodland - ConiferWoodland - MixedGrassland/herbaceousSand/dune
Other Nations (2)
CanadaN4
| Province | Rank | Native |
|---|
| Nova Scotia | S2 | Yes |
| Ontario | S4 | Yes |
| Quebec | S2 | Yes |
United StatesN5
| Province | Rank | Native |
|---|
| Oklahoma | S2 | Yes |
| Delaware | SNR | Yes |
| Wisconsin | SNR | Yes |
| Louisiana | SNR | Yes |
| Connecticut | SNR | Yes |
| Minnesota | SNR | Yes |
| South Carolina | S4 | Yes |
| Kentucky | S2 | Yes |
| Illinois | SNR | Yes |
| Iowa | S1 | Yes |
| Georgia | SNR | Yes |
| Mississippi | SNR | Yes |
| Maine | SNR | Yes |
| North Carolina | S2 | Yes |
| Texas | SNR | Yes |
| Arkansas | SNR | Yes |
| Florida | SNR | Yes |
| Michigan | SNR | Yes |
| Rhode Island | SNR | Yes |
| New York | S5 | Yes |
| Maryland | S1 | Yes |
| Virginia | S4 | Yes |
| Pennsylvania | S1 | Yes |
| Tennessee | SNR | Yes |
| Vermont | S2 | Yes |
| Massachusetts | SNR | Yes |
| New Hampshire | SNR | Yes |
| West Virginia | S4 | Yes |
| Alabama | SNR | Yes |
| Indiana | SNR | Yes |
| Ohio | S3 | Yes |
| New Jersey | S2 | Yes |
Plant Characteristics
DurationBIENNIAL, SPRING-FLOWERING, SUMMER-FLOWERING
Economic Value (Genus)No
References (10)
- Burns, J. F. 1984. The Polygalaceae of Ohio. Castanea 51(2): 137-144.
- Fernald, M. L. 1950. Gray's manual of botany. 8th edition. Corrected printing (1970). D. Van Nostrand Company, New York. 1632 pp.
- Flora of North America Editorial Committee (FNA). 2021. Flora of North America north of Mexico. Vol. 10. Magnoliophyta: Proteaceae to Elaeagnaceae. Oxford Univ. Press, New York. xxiv + 456 pp.
- Gleason, H.A., and A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, Bronx, New York. 910 pp.
- Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
- McCance, R.M., Jr., and J.F. Burns, eds. 1984. Ohio endangered and threatened vascular plants: Abstracts of state-listed taxa. Division Natural Areas and Preserves, Ohio Dept. Natural Resources, Columbus. 635 pp.
- Pastore, J.F.B., Martinez, A., Abbott, J.R., and K. Neubig. 2023. Toward new generic delimitations in Polygalaceae II: Senega 1. Annals of the Missouri Botanical Garden 108(1): 126-249.
- Radford, A.E., H.E. Ahles, and C.R. Bell. 1968. Manual of the vascular flora of the Carolinas. Univ. North Carolina Press, Chapel Hill, NC. 1183 pp.
- Weakley, A.S., and Southeastern Flora Team. 2025. Flora of the southeastern United States Web App. Edition of February 18, 2025. University of North Carolina Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina, Chapel Hill. Online. Available: https://fsus.ncbg.unc.edu (accessed 2025).
- Wunderlin, R.P. 1982. Guide to the vascular plants of central Florida. Univ. Presses Florida, Gainesville. 472 pp.