Roadless Areas
Home/Species/ Nuttall's Pleatleaf

Nemastylis nuttallii

Pickering ex R.C. Foster

Nuttall's Pleatleaf

G3Vulnerable Found in 1 roadless area NatureServe Explorer →
G3VulnerableGlobal Rank
HighThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.134466
Element CodePMIRI0B030
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderLiliales
FamilyIridaceae
GenusNemastylis
Other Common Names
Nuttall's pleatleaf (EN)
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.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2022-11-01
Change Date2022-11-01
Edition Date2022-11-01
Edition AuthorsSE RSGCN Workshop (2022)
Threat ImpactHigh
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Nemastylis nuttallii occurs in the central United States in Arkansas, Missouri, and Oklahoma and possibly northeast Texas. This species has a narrow range and is uncommon. In addition, it has numerous threats including fire suppression and the subsequent invasion of cedars, development, herbicide use in prairies, and mining. Casual observations of this species may be limited by its inconspicuous grass-like leaves and narrow bloom time in the evening.
Range Extent Comments
Nemastylis nuttallii occurs in the central United States in Arkansas, Missouri, and Oklahoma and possibly northeast Texas. Range extent was estimated with GeoCAT using occurrence and photo based observation data (Bachman et al. 2011, GBIF 2022, iNaturalist 2022).
Occurrences Comments
Based on NatureServe Network occurrence data, herbarium records, photo-based observations, and field observations, there are between 21 and 80 occurrences rangewide (GBIF 2022, iNaturalist 2022, NatureServe 2022). Unless surveys are targeting this species, it may be challenging to find with it's grass-like appearance and narrow bloom time in the evening.
Threat Impact Comments
This species is threatened by ranchers spraying prairies, cedar encroachment in glades (succession), fire suppression, development, and mining (T. Witsell, pers. comm., 2022).
Ecology & Habitat

Habitat

This species is found in prairies, glades and barrens on dolomite, shale, sandstone, limestone, or novaculite (T. Witsell, pers. comm., 2022).

Reproduction

This species flowers open at around 5:00 pm and close around 7:00 pm (FNA 2002a).
Terrestrial Habitats
Grassland/herbaceousBarrens
Other Nations (1)
United StatesN3
ProvinceRankNative
MissouriS3Yes
TexasS1Yes
ArkansasS2Yes
OklahomaS1Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial developmentRestricted (11-30%)Extreme or 71-100% pop. declineHigh (continuing)
1.1 - Housing & urban areasRestricted (11-30%)Extreme or 71-100% pop. declineHigh (continuing)
3 - Energy production & miningUnknownUnknownHigh (continuing)
3.2 - Mining & quarryingUnknownUnknownHigh (continuing)
7 - Natural system modificationsLarge (31-70%)Moderate or 11-30% pop. declineHigh (continuing)
7.1 - Fire & fire suppressionLarge (31-70%)Moderate or 11-30% pop. declineHigh (continuing)
7.1.2 - Suppression in fire frequency/intensityLarge (31-70%)Moderate or 11-30% pop. declineHigh (continuing)
8 - Invasive & other problematic species, genes & diseasesLarge (31-70%)Moderate or 11-30% pop. declineHigh (continuing)
8.2 - Problematic native species/diseasesLarge (31-70%)Moderate or 11-30% pop. declineHigh (continuing)
9 - PollutionRestricted (11-30%)Moderate or 11-30% pop. declineHigh (continuing)
9.3 - Agricultural & forestry effluentsRestricted (11-30%)Moderate or 11-30% pop. declineHigh (continuing)
9.3.3 - Herbicides and pesticidesRestricted (11-30%)Moderate or 11-30% pop. declineHigh (continuing)

—

Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (1)
Missouri (1)
AreaForestAcres
Swan Creek Rare II Study AreaMark Twain National Forest7,310
References (8)
  1. Bachman, S., J. Moat, A.W. Hill, J. de la Torre, and B. Scott. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: Smith, V., and L. Penev (Eds). 2011. e-Infrastructures for data publishing in biodiversity science. ZooKeys 150:117-126. Version BETA. Accessed online: http://geocat.kew.org/editor
  2. Flora of North America Editorial Committee (FNA). 2002a. Flora of North America north of Mexico. Vol. 26. Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York. xxvi + 723 pp.
  3. Global Biodiversity Information Facility (GBIF). 2022. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2022).
  4. iNaturalist. 2022. Online. Available: https://www.inaturalist.org (accessed 2022).
  5. 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.
  6. NatureServe. 2022. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  7. Southeastern Regional Species of Greatest Conservation Need Workshop (SE RSGCN Workshop). 2022. Jon Ambrose, Keith Bradley, Malissa Briggler, John Burkhart, Emily Coffey, Todd Crabtree, Amanda Eberly, Margie Dent, Chris Doffitt, Bruce Hoagland, Amy Jenkins, Wesley Knapp, Stephanie Koontz, Lisa Kruse, David Lincicome, Gemma Milly, Sarah Norris, Carrie Radcliffe, Hanna Rosner-Katz, Al Schotz, Jason Singhurst, Diana Soteropoulos, Carlee Steppe, Samantha Tessel, John Townsend, Alan Weakley, Brenda Wichmann, and Theo Witsell. Status assessment workshop, Oct. 17-20, 2022, Atlanta Botanical Garden, Atlanta, GA.
  8. Witsell, Theo. Personal communication. Botanist. Arkansas Natural Heritage Commission. Little Rock, AR.