Home/Species/ Three-square Bulrush

Schoenoplectus pungens

(Vahl) Palla

Three-square Bulrush

G5Secure Found in 9 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.154249

Element CodePMCYP0Q180

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumAnthophyta

ClassMonocotyledoneae

OrderCyperales

FamilyCyperaceae

GenusSchoenoplectus

Synonyms

Scirpus pungensVahl

Other Common Names

common threesquare (EN) Common Threesquare (EN) Scirpe piquant (FR)

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.

Taxonomic Comments

Has been treated as Scirpus pungens (e.g., Kartesz 1994).

Conservation Status

Rank MethodExpertise without calculation

Review Date2016-05-13

Change Date1988-04-30

Ecology & Habitat

Other Nations (2)

CanadaN5

Province	Rank	Native
Island of Newfoundland	S3	Yes
Quebec	SNR	Yes
Yukon Territory	SU	Yes
New Brunswick	S4	Yes
Ontario	S5	Yes
British Columbia	S5	Yes
Nova Scotia	S5	Yes
Northwest Territories	S2	Yes
Manitoba	S3	Yes
Alberta	S4	Yes
Prince Edward Island	S4	Yes
Saskatchewan	S4	Yes

United StatesNNR

Province	Rank	Native
California	SNR	Yes
Missouri	SNR	Yes
Iowa	SNR	Yes
South Dakota	SNR	Yes
Nevada	SNR	Yes
West Virginia	S4	Yes
Delaware	S5	Yes
Connecticut	SNR	Yes
New York	S5	Yes
Maine	SNR	Yes
District of Columbia	SNR	Yes
Louisiana	SNR	Yes
Arkansas	SNR	Yes
Ohio	SNR	Yes
Pennsylvania	SNR	Yes
New Mexico	SNR	Yes
Oregon	SNR	Yes
Idaho	SNR	Yes
Colorado	S4	Yes
Rhode Island	SNR	Yes
Alaska	S1	Yes
Kansas	SNR	Yes
Minnesota	SNR	Yes
Oklahoma	SNR	Yes
New Jersey	SNR	Yes
Wisconsin	SNR	Yes
Florida	S4	Yes
Massachusetts	SNR	Yes
Indiana	SNR	Yes
Montana	S5	Yes
Alabama	SNR	Yes
North Carolina	SNR	Yes
Virginia	S5	Yes
Vermont	S4	Yes
South Carolina	SNR	Yes
Illinois	SNR	Yes
Wyoming	S5	Yes
Mississippi	SNR	Yes
Maryland	SNR	Yes
Washington	SNR	Yes
Arizona	SNR	Yes
Utah	SNR	Yes
Texas	SNR	Yes
North Dakota	SNR	Yes
Michigan	SNR	Yes
New Hampshire	SNR	Yes
Nebraska	SNR	Yes
Kentucky	SNR	Yes
Georgia	SNR	Yes
Tennessee	SNR	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (9)

Arizona (1)

Area	Forest	Acres
Lime Creek	Tonto National Forest	42,568

California (2)

Area	Forest	Acres
Excelsior (CA)	Inyo National Forest	45,607
Glass Mountain	Inyo National Forest	52,867

New Mexico (2)

Area	Forest	Acres
Aspen Mountain	Gila National Forest	23,784
Devils Creek	Gila National Forest	89,916

North Carolina (2)

Area	Forest	Acres
Pond Pine B	Croatan National Forest	2,961
Sheep Ridge Addition	Croatan National Forest	5,808

Utah (1)

Area	Forest	Acres
Wellsville	Wasatch-Cache National Forest	1,717

West Virginia (1)

Area	Forest	Acres
Cranberry Addition	Monongahela National Forest	11,123

References (3)

Flora of North America Editorial Committee (FNA). 2002b. Flora of North America north of Mexico. Vol. 23. Magnoliophyta: Commelinidae (in part): Cyperaceae. Oxford Univ. Press, New York. xxiv + 608 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.
Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.