Illinois Natural History Survey - University of Illinois

Oryzopsis asperifolia
Rough-leaved rice grass
Taxonomy

Synonyms:

Subspecific taxa:

Classification:

  • Magnoliophyta

Other taxonomic & nomenclature sources: USDA PlantsITISThe Plant ListIPNI

Images

   
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Species Distribution
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County Map Legend
Absent:
Not known from county
Medium confidence:
Medium or unknown confidence;
often old records or unverifiable observations
Medium-high confidence:
Often observations by expert botanists
High confidence:
Often vouchered herbarium records
Planted / introduced:
Native species introduced outside historic range,
or only in planted locations within county (e.g., restorations)
Historic / extirpated:
Only historic records for the species; likely extirpated
(Note that this category is not yet functional)

North American distribution maps for this species: FLNAUSDA PlantsBONAPBISON

Collections, Observations & Flowering by Month [?]

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F
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M
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A
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M
0
J
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J
0
A
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S
0
O
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N
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D
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Collections & Observations by Decade [?]

Species Status

Status/Listing: No Information

Notes:

Origin: Native

Species Description

General: Monocot, perennial

Roots: adventitious, fibrous

Shoots: alternate leaf arrangment; simple leaf type; entire leaf margin; Parallel leaf venation; awl-shaped leaf shape

Inflorescence: panicle

Flowers: perfect; 3 merous; complete; hypogynous ovary position

Fruit: grain

Physiology: autotrophic

Reproduction: sexual

Ecology & Natural History

Habitat: Species is distributed in wooded dunes and dry banks; is associated with Ostrya virginiana. See also SAF Forest Cover Types.

ILPIN Notes: Hitchcock, A.S. 1950. A Manual of the Grasses of the United States. United States Government Printing Office. Washington, D.C. 1051 pp. Fernald, M.L. and A.C. Kinsey. 1943. Edible Wild Plants of Eastern North America. Idlewild Press. Cornwall-on-Hudson, New York. 452 pp. The grain may make a good flour. Fernald and Kinsey, 1943, say, "the considerable large seed contains the finest flour of any grain I know." Basal leaves are much longer than reduced, upper leaves. When panicle is mature, the topmost central portion remains contracted.

Functional Relationships:

  • Pollinators:
  • Dispersal:
  • Mycorrhizae:
  • N2 fixation:

Human Relationships:

  • Edibility [?] :
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

Coefficient of Conservatism (C-value) [?] :

  • Entire State: 10
  • Chicago Area: 10

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