Eriophorum gracile - W.D.J. Koch
Slender Cotton-grass
Other English Common Names: Slender Cottongrass
Other Common Names: slender cottongrass
Taxonomic Status: Accepted
Related ITIS Name(s): Eriophorum gracile W.D.J. Koch (TSN 40096)
French Common Names: linaigrette grÍle
Unique Identifier: ELEMENT_GLOBAL.2.141592
Element Code: PMCYP0A080
Informal Taxonomy: Plants, Vascular - Flowering Plants - Sedge Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Monocotyledoneae Cyperales Cyperaceae Eriophorum
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Concept Reference
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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: Eriophorum gracile
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 16May2016
Global Status Last Changed: 24Apr1984
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Nation: United States
National Status: NNR
Nation: Canada
National Status: N5 (08Mar2012)

U.S. & Canada State/Province Status
United States Alaska (SNR), California (S4), Colorado (S2), Connecticut (SNR), Delaware (SX), Idaho (SNR), Illinois (S1), Indiana (S2), Iowa (S1), Maine (SNR), Maryland (S1), Massachusetts (S2), Michigan (SNR), Minnesota (SNR), Montana (S3), Nebraska (S2), New Hampshire (SNR), New Jersey (SNR), New York (S4), North Dakota (S1), Ohio (SX), Oregon (SNR), Pennsylvania (S1), Rhode Island (S1), South Dakota (S1), Vermont (S1), Washington (SNR), Wisconsin (SNR), Wyoming (S3)
Canada Alberta (S3), British Columbia (S4), Labrador (SNR), Manitoba (S5), New Brunswick (S1), Newfoundland Island (S1S2), Northwest Territories (SNR), Nova Scotia (S2), Nunavut (S2), Ontario (S5), Prince Edward Island (S1), Quebec (S3), Saskatchewan (SNR), Yukon Territory (S1S2)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Circumboreal south to Pennsylvania, Iowa, Colorado, Idaho, and central California (Hitchcock et al. 1969). In Wyoming, it is known from the Jackson Hole area and the Beartooth Plateau.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Circumboreal south to Pennsylvania, Iowa, Colorado, Idaho, and central California (Hitchcock et al. 1969). In Wyoming, it is known from the Jackson Hole area and the Beartooth Plateau.

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AK, CA, CO, CT, DEextirpated, IA, ID, IL, IN, MA, MD, ME, MI, MN, MT, ND, NE, NH, NJ, NY, OHextirpated, OR, PA, RI, SD, VT, WA, WI, WY
Canada AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, QC, SK, YT

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
CO Boulder (08013), Chaffee (08015), Delta (08029), Eagle (08037), El Paso (08041), Gunnison (08051), Jackson (08057), Las Animas (08071)*, Park (08093), Summit (08117), Teller (08119)
IA Cerro Gordo (19033)*, Dickinson (19059), Emmet (19063)*, Hancock (19081), Kossuth (19109)*, Webster (19187)*
IN Elkhart (18039), Kosciusko (18085), La Porte (18091), Lagrange (18087), Lake (18089)*, Noble (18113), Steuben (18151), Wells (18179)*, Whitley (18183)*
MA Berkshire (25003), Essex (25009)*, Franklin (25011), Hampden (25013), Hampshire (25015)*, Middlesex (25017)*, Norfolk (25021)*, Suffolk (25025)*, Worcester (25027)
MT Flathead (30029), Lake (30047), Lincoln (30053), Missoula (30063), Powell (30077)
ND Ransom (38073)
NE Blaine (31009), Cherry (31031), Garden (31069), Grant (31075), Logan (31113)*, Rock (31149), Sheridan (31161), Thomas (31171)*, Wheeler (31183)
NJ Bergen (34003)*, Burlington (34005)*, Gloucester (34015)*, Mercer (34021)*, Morris (34027)*, Sussex (34037)*, Warren (34041)*
PA Bedford (42009)*, Berks (42011)*, Bucks (42017)*, Centre (42027)*, Delaware (42045)*, Erie (42049), Franklin (42055)*, Lehigh (42077)*, Montgomery (42091)*, Northampton (42095)*, Warren (42123)
SD Bennett (46007), Brookings (46011)*, Moody (46101)*
VT Orange (50017), Orleans (50019), Windsor (50027)
WY Albany (56001), Johnson (56019), Park (56029), Sheridan (56033), Teton (56039)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
01 Nashua (01070004)+, White (01080105)+, Deerfield (01080203)+, Chicopee (01080204)+, Farmington (01080207)+, Charles (01090001)+*, Blackstone (01090003)+, Quinebaug (01100001)+, Housatonic (01100005)+
02 Hudson-Hoosic (02020003)+*, Rondout (02020007)+*, Lower Hudson (02030101)+*, Bronx (02030102)+*, Hackensack-Passaic (02030103)+*, Raritan (02030105)+*, Middle Delaware-Musconetcong (02040105)+*, Lehigh (02040106)+*, Crosswicks-Neshaminy (02040201)+*, Lower Delaware (02040202)+*, Schuylkill (02040203)+*, Lower Susquehanna-Penns (02050301)+*, Raystown (02050303)+*, Lower Susquehanna (02050306)+*, Conococheague-Opequon (02070004)+*
04 Little Calumet-Galien (04040001)+, St. Joseph (04050001)+, St. Joseph (04100003)+*, Lake Erie (04120200)+*, Winooski River (04150403)+, St. Francois River (04150500)+
05 Upper Allegheny (05010001)+, French (05010004)+, Salamonie (05120102)+*, Eel (05120104)+*, Tippecanoe (05120106)+
07 Blue Earth (07020009)+*, Winnebago (07080203)+, Upper Des Moines (07100002)+*, East Fork Des Moines (07100003)+*, Middle Des Moines (07100004)+*, Kankakee (07120001)+, Chicago (07120003)+*
09 Lower Sheyenne (09020204)+
10 Yellowstone Headwaters (10070001)+, Clarks Fork Yellowstone (10070006)+, Upper Tongue (10090101)+, Clear (10090206)+, Little White (10140203)+, Upper Niobrara (10150003)+, Middle Niobrara (10150004)+, Snake (10150005)+*, Lower Big Sioux (10170203)+*, North Platte Headwaters (10180001)+, Upper North Platte (10180002)+*, Middle North Platte-Scotts Bluff (10180009)+, Upper Laramie (10180010)+, South Platte Headwaters (10190001)+, Upper South Platte (10190002)+, St. Vrain (10190005)+, Upper Middle Loup (10210001)+, Dismal (10210002)+*, Upper North Loup (10210006)+, Calamus (10210008)+, Loup (10210009)+, Little Sioux (10230003)+
11 Arkansas Headwaters (11020001)+, Upper Arkansas (11020002)+, Fountain (11020003)+, Purgatoire (11020010)+*
14 Blue (14010002)+, Eagle (14010003)+, North Fork Gunnison (14020004)+, Lower Gunnison (14020005)+
17 Upper Kootenai (17010101)+, Fisher (17010102)+, Blackfoot (17010203)+, North Fork Flathead (17010206)+, Middle Fork Flathead (17010207)+, Flathead Lake (17010208)+, South Fork Flathead (17010209)+*, Stillwater (17010210)+, Swan (17010211)+, Snake headwaters (17040101)+, Upper Henrys (17040202)+, Lower Henrys (17040203)+
IP IP-04 (IP-04)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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General Description: Slender Cottongrass is a grass-like perennial with single erect stems that are 2-6 dm high and which arise from slender rhizomes. The long basal and stem leaves are only 1-2 mm wide and deeply channeled or triangular in cross-section except near the stem. The uppermost leaf has a blade that is shorter than the sheathing portion surrounding the stem. Flowers are borne in 2-5, stalked, head-like spikelets arising from the stem tips and subtended by a single green, leaf-like bract that is shorter than the inflorescence. The spikelet stalks are covered with dense, short, soft hairs. Each flower consists of numerous long, shining, white bristles at the base of the ovary and a lance-shaped, greenish black or brown scale with a slender midrib that ends well below the tip. The light brown seeds are 2-4 mm long and 3-5 times as long as wide. The mature bristles are ca. 2 cm long.
Diagnostic Characteristics: E. VIRIDICARINATUM as well as the more common E. POLYSTACHION have two or more leaf-like bracts subtending the inflorescence, at least one of which is longer than the spikelets. Both of these species also have black seeds and leaves that are flat for most of their length.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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Element Ecology & Life History Edition Date: 23Oct1997
Element Ecology & Life History Author(s): KAJ

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).

References
Help
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  • Jones, G. P. and W. Fertig. 1999. Ecological evaluation of the potential Lake Creek Research Natural Area within the Shoshone National Forest, Park County, Wyoming. Unpublished report prepared for the Shoshone National Forest, USDA Forest Service by the Wyoming Natural Diversity Database,, Laramie, WY.

  • 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.

  • Kesonie, D. T. 2009. A floristic inventory of Grand Teton National Park and the Pinyon Peak Highlands, Wyoming. Masters Thesis. Department of Botany, University of Wyoming, Laramie, WY.

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