Taxon: Piptochaetium avenaceum (L.) Parodi

Summary

Genus:

Piptochaetium

Family:

Poaceae (alt. Gramineae)

Subfamily:

Pooideae

Tribe:

Stipeae

Nomen number:

402293

Place of publication:

Revista Mus. La Plata, Secc. Bot. 6:229. 1944

Verified:

04/03/1996 ARS Systematic Botanists.

Accessions:

4 (4 active, 2 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

Autonyms (not in current use), synonyms and invalid designations

Basionym
Stipa avenacea L.

Images (1 total. Click on image for more.)

Conservation Status

Reference(s)

Barkworth, M. E. 1993. North American Stipeae (Gramineae): taxonomic changes and other comments. Phytologia 74:20.
Hitchcock, A. S. 1950. Manual of the grasses of the United States, ed. 2. Note: = Stipa avenacea
Holm, L. et al. 1979. A geographical atlas of world weeds Note: = "Stipa arvenacea" L.
Ohio Flora Committee (E. L. Braun, T. S. Cooperrider, T. R. Fisher, J. J. Furlow). 1967-. The vascular flora of Ohio. Note: = Stipa avenacea L.
Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. Note: = Stipa avenacea L.
Seymour, F. 1969. The flora of New England. Note: = Stipa avenacea L.
Wofford, B. E. Database of Tennessee vascular plants (on-line resource).

Common names

Language	Name	Alternate name	note	seq	Citation
English	black oat grass		as Stipa avenacea	1	Ohio Flora Committee (E. L. Braun, T. S. Cooperrider, T. R. Fisher, J. J. Furlow). 1967-. The vascular flora of Ohio. Note: = Stipa avenacea L.
English	blackseed needlegrass		as Stipa avenacea	1	Hitchcock, A. S. 1950. Manual of the grasses of the United States, ed. 2. Note: = Stipa avenacea

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	North-Central U.S.A.	United States	Illinois
1	Native	Northern America	Northeastern U.S.A.	United States	Connecticut
1	Native	Northern America	Northeastern U.S.A.	United States	Massachusetts
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan
1	Native	Northern America	Northeastern U.S.A.	United States	New Jersey
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio	s.	Ohio Flora Committee (E. L. Braun, T. S. Cooperrider, T. R. Fisher, J. J. Furlow). 1967-. The vascular flora of Ohio. Note: = Stipa avenacea L.
1	Native	Northern America	Northeastern U.S.A.	United States	Pennsylvania
1	Native	Northern America	Northeastern U.S.A.	United States	Rhode Island
1	Native	Northern America	Northeastern U.S.A.	United States	West Virginia
1	Native	Northern America	South-Central U.S.A.	United States	Texas
1	Native	Northern America	Southeastern U.S.A.	United States	Alabama
1	Native	Northern America	Southeastern U.S.A.	United States	Arkansas
1	Native	Northern America	Southeastern U.S.A.	United States	Delaware
1	Native	Northern America	Southeastern U.S.A.	United States	Georgia
1	Native	Northern America	Southeastern U.S.A.	United States	Kentucky
1	Native	Northern America	Southeastern U.S.A.	United States	Louisiana
1	Native	Northern America	Southeastern U.S.A.	United States	Mississippi
1	Native	Northern America	Southeastern U.S.A.	United States	North Carolina		Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. Note: = Stipa avenacea L.
1	Native	Northern America	Southeastern U.S.A.	United States	South Carolina		Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. Note: = Stipa avenacea L.
1	Native	Northern America	Southeastern U.S.A.	United States	Tennessee		Wofford, B. E. Database of Tennessee vascular plants (on-line resource).
1	Native	Northern America	Southeastern U.S.A.	United States	Virginia

Native
Northern America

NORTHEASTERN U.S.A.: United States [Connecticut, Massachusetts, Michigan, New Jersey, Ohio (s.), Pennsylvania, Rhode Island, West Virginia]
NORTH-CENTRAL U.S.A.: United States [Illinois]
SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Delaware, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia]
SOUTH-CENTRAL U.S.A.: United States [Texas]

Reference(s)

Ohio Flora Committee (E. L. Braun, T. S. Cooperrider, T. R. Fisher, J. J. Furlow). 1967-. The vascular flora of Ohio. Note: = Stipa avenacea L.
Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas. Note: = Stipa avenacea L.
Wofford, B. E. Database of Tennessee vascular plants (on-line resource).

Economic Uses

Usage	Type	Note	Reference
Weed		reported from USA as of unknown importance	Holm, L. et al. 1979. A geographical atlas of world weeds Note: = "Stipa arvenacea" L.

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomydetail?id=402293. Accessed 12 May 2026.