Spiranthes magnicamporum - Sheviak
Great Plains Ladies'-tresses
Other Common Names: Great Plains ladies'-tresses
Taxonomic Status: Accepted
Related ITIS Name(s): Spiranthes magnicamporum Sheviak (TSN 43468)
Unique Identifier: ELEMENT_GLOBAL.2.128169
Element Code: PMORC2B0K0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Orchid Family
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Monocotyledoneae Orchidales Orchidaceae Spiranthes
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Concept Reference
Concept Reference: 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.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Spiranthes magnicamporum
Taxonomic Comments: Spiranthes magnicamporum, by definition, is a stable diploid species within the S. cernua complex. The Spiranthes cernua complex is notorious for hybridization and, although ecologically isolated within their sympatric ranges, a hybrid race of S.magnicamporum and the sand prairie ecotype of S. cernua occurs in the Chicago region. (Catling, 1982)
Conservation Status

NatureServe Status

Global Status: G3G4
Global Status Last Reviewed: 04Jul2016
Global Status Last Changed: 04Jul2016
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G3 - Vulnerable
Reasons: Widely distributed in the central United States, and into south eastern Canada, with disjuncts in the southwest and southeast United States. Favors dry grasslands with limestone bedrock near the surface. Locally infrequent in Huron County, Michigan, but individuals are often scattered. There are greater than 100 occurrences across a large range.
Nation: United States
National Status: N3N4
Nation: Canada
National Status: N3? (16Dec2017)

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Alabama (S3), Colorado (SNR), Georgia (S1), Illinois (S3S4), Indiana (S1), Iowa (S3), Kansas (S2), Kentucky (S2), Louisiana (S2), Michigan (S3S4), Minnesota (SNR), Mississippi (S2), Missouri (SNR), Nebraska (SNR), New Mexico (S3?), New York (S1), North Dakota (SNR), Ohio (S3), Oklahoma (SNR), Pennsylvania (SX), South Dakota (S3), Tennessee (S1), Texas (SNR), Utah (SNR), Virginia (S1), Wisconsin (S3)
Canada Manitoba (S1S2), Ontario (S3?)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Eastern Great Plains, Great Lakes and Midwest regions, with disjunct populations in Utah, Colorado, New Mexico and Alabama-Mississippi (Luer 1975). Also into Ontario and Manitoba (Kartesz unpublished data 1995).

Number of Occurrences: 81 to >300
Number of Occurrences Comments: Extant populations of Spiranthes magnicamporum occur in: Alabama (36--3A-ranked, 1C, 1D; 10 counties) Arkansas (1D), Georgia (6), Illinois (43 counties), Iowa (6 records, but listed S3), Kansas (12), Kentucky (13--3A, 7B, 1C, 2D), Louisiana (1), Michigan (approximately 100 occurrences --ranked S3S4-- in 7 counties), Minnesota (25 records in 16 counties), Missouri (2 counties), Ohio (30--1A, 2B, 3C, 7D), South Dakota (10--1A, 1B, 1C, 3D), Wisconsin (14 counties), Ontario (approximately 50). (Ranks listed were assigned to EORs by individual states and all may not align with compiled RANKSPECS.)

Population Size Comments: Occurs as widely scattered individuals. Plant thrives in Huron County, Michigan where limestone bedrock is close to surface. Locally frequent along Saginaw Bay, Michigan; more rare inland in Great Lakes region (Case 1987). Populations can vary in size from year to year. Identification may be confused with S. cernua, creating an underestimation of occurrences for S. magnicamporum.

Overall Threat Impact Comments: Threats include forest succession, soil disturbance or compaction, loss of habitat to agriculture, overgrazing.

Short-term Trend: Relatively Stable (<=10% change)

Intrinsic Vulnerability Comments: Able to colonize mildly disturbed calcareous habitats (Case 1987).

Other NatureServe Conservation Status Information

Global Range: Eastern Great Plains, Great Lakes and Midwest regions, with disjunct populations in Utah, Colorado, New Mexico and Alabama-Mississippi (Luer 1975). Also into Ontario and Manitoba (Kartesz unpublished data 1995).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AL, CO, GA, IA, IL, IN, KS, KY, LA, MI, MN, MO, MS, ND, NE, NM, NY, OH, OK, PAextirpated, SD, TN, TX, UT, VA, WI
Canada MB, ON

Range Map
No map available.

U.S. Distribution by County Help
State County Name (FIPS Code)
AL Autauga (01001), Bibb (01007)*, Colbert (01033), Dallas (01047), Greene (01063)*, Marengo (01091)*, Perry (01105)*, Pickens (01107)*, Sumter (01119)*, Wilcox (01131)*
AR Benton (05007), Carroll (05015), Clark (05019), Howard (05061), Little River (05081)
GA Catoosa (13047), Floyd (13115)
IA Allamakee (19005), Appanoose (19007), Boone (19015), Bremer (19017), Buchanan (19019), Calhoun (19025)*, Cedar (19031), Cerro Gordo (19033), Clarke (19039), Clay (19041), Clinton (19045), Decatur (19053), Delaware (19055), Dubuque (19061), Fayette (19065), Floyd (19067), Hamilton (19079), Iowa (19095), Jackson (19097), Jefferson (19101), Jones (19105), Lee (19111), Linn (19113), Lucas (19117), Mahaska (19123), Marion (19125), Mills (19129), Monona (19133), Monroe (19135), Muscatine (19139), Palo Alto (19147)*, Plymouth (19149), Pocahontas (19151)*, Polk (19153), Pottawattamie (19155), Poweshiek (19157), Scott (19163)*, Story (19169), Wapello (19179), Washington (19183), Winneshiek (19191)*
IN Allen (18003), Clark (18019), Lake (18089), Newton (18111), Porter (18127), Starke (18149), Steuben (18151)
KY Bullitt (21029), Crittenden (21055), Edmonson (21061), Garrard (21079), Grayson (21085), Hardin (21093), Larue (21123), Lincoln (21137), Madison (21151), Meade (21163), Nelson (21179), Robertson (21201)
LA Ouachita (22073), Winn (22127)
MS Chickasaw (28017), Clay (28025), Jasper (28061), Monroe (28095), Oktibbeha (28105), Scott (28123), Smith (28129)
OH Adams (39001), Clark (39023), Erie (39043), Greene (39057), Lake (39085), Lucas (39095), Ottawa (39123), Sandusky (39143), Summit (39153), Wood (39173)
PA Lancaster (42071)*, Lebanon (42075)*
SD Brookings (46011), Brown (46013), Clay (46027), Davison (46035)*, Day (46037)*, Deuel (46039), Grant (46051), Hamlin (46057)*, Minnehaha (46099), Moody (46101)*, Roberts (46109), Todd (46121)*, Union (46127)*
TN Decatur (47039), Franklin (47051), Marion (47115)
VA Montgomery (51121), Russell (51167)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
02 Lower Susquehanna (02050306)+*
03 Upper Roanoke (03010101)+, Upper Coosa (03150105)+, Upper Alabama (03150201)+, Cahaba (03150202)+*, Middle Alabama (03150203)+, Town (03160102)+, Tibbee (03160104)+, Middle Tombigbee-Lubbub (03160106)+*, Sipsey (03160107)+*, Noxubee (03160108)+*, Middle Tombigbee-Chickasaw (03160201)+*, Upper Chickasawhay (03170002)+, Upper Leaf (03170004)+, Middle Pearl-Strong (03180002)+
04 Little Calumet-Galien (04040001)+, St. Joseph (04050001)+, St. Joseph (04100003)+, Lower Maumee (04100009)+, Cedar-Portage (04100010)+, Sandusky (04100011)+, Huron-Vermilion (04100012)+*, Cuyahoga (04110002)+, Ashtabula-Chagrin (04110003)+
05 Lower Scioto (05060002)+, Upper Great Miami (05080001)+, Ohio Brush-Whiteoak (05090201)+, Licking (05100101)+, Lower Kentucky (05100205)+, Upper Green (05110001)+, Rough (05110004)+, Silver-Little Kentucky (05140101)+, Salt (05140102)+, Rolling Fork (05140103)+, Blue-Sinking (05140104)+, Lower Ohio-Bay (05140203)+
06 Upper Clinch (06010205)+, Middle Tennessee-Chickamauga (06020001)+, Upper Elk (06030003)+, Pickwick Lake (06030005)+, Lower Tennessee-Beech (06040001)+
07 Upper Minnesota (07020001)+, Coon-Yellow (07060001)+, Upper Iowa (07060002)+, Grant-Little Maquoketa (07060003)+, Turkey (07060004)+, Apple-Plum (07060005)+, Maquoketa (07060006)+, Copperas-Duck (07080101)+*, Upper Wapsipinicon (07080102)+, Lower Wapsipinicon (07080103)+, Flint-Henderson (07080104)+, South Skunk (07080105)+, North Skunk (07080106)+, Skunk (07080107)+, Shell Rock (07080202)+, Winnebago (07080203)+, Middle Cedar (07080205)+, Lower Cedar (07080206)+, Lower Iowa (07080209)+, Upper Des Moines (07100002)+*, Middle Des Moines (07100004)+, Boone (07100005)+, North Raccoon (07100006)+, Lake Red Rock (07100008)+, Lower Des Moines (07100009)+, Kankakee (07120001)+, Iroquois (07120002)+, Chicago (07120003)+
08 Little Missouri (08040103)+, Lower Ouachita (08040207)+, Dugdemona (08040303)+
10 Keya Paha (10150006)+*, Upper James (10160003)+, Lower James (10160011)+*, Lewis and Clark Lake (10170101)+, Vermillion (10170102)+*, Middle Big Sioux Coteau (10170201)+*, Upper Big Sioux (10170202)+, Lower Big Sioux (10170203)+, Little Sioux (10230003)+, Big Papillion-Mosquito (10230006)+, Keg-Weeping Water (10240001)+, Thompson (10280102)+, Upper Chariton (10280201)+
11 Beaver Reservoir (11010001)+, Lower Little (11140109)+, Saline Bayou (11140208)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
Basic Description: Plant, monocot, Orchidaceae; Great Plain's Ladies'-Tresses; an orchid havid a dense, cylindric spike of white flowers often having a pale yellowish cast and a sweet odor.
Habitat Comments: Variable, but often associated with calcareous soils: dry or wet prairie, also limestone glades (Missouri, South Dakota), interdunal soils (Michigan), riverbanks and floodplains (New Mexico, South Dakota).
Economic Attributes Not yet assessed
Management Summary Not yet assessed
Population/Occurrence Delineation Not yet assessed
Population/Occurrence Viability
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
NatureServe Conservation Status Factors Edition Date: 10Jan1997
NatureServe Conservation Status Factors Author: Beckman, J., TNC-HQ; S.L.Neid, MRO.

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

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  • Kartesz, J.T. 1995. Species distribution data at county level for vascular plants of the United States, from unpublished data files at the North Carolina Botanical Garden, February, 1995.

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  • Oldham, M.J., D. McLeod, W.G. Stewart and J.M. Bowles. 1991. Preliminary Annotated Checklist of the Vascular Plants of Elgin, Middlesex and Oxford Counties, Ontario.. Ontario Ministry of Natural Resources, Aylmer District, Aylmer, Ontario. 174 pp.

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