Illinois Natural History Survey - University of Illinois

Sparganium eurycarpum
Giant burreed
Taxonomy

Synonyms:

Subspecific taxa:

Classification:

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 [?]

J
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F
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M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
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, rhizomes, tubers

Shoots: alternate leaf arrangment; simple leaf type; entire leaf margin; Parallel leaf venation; oblong leaf shape

Inflorescence: head

Flowers: unisexual, monoecious; incomplete, not petals, regular; hypogynous ovary position

Fruit: achene

Physiology: autotrophic; C3 C02 fixation

Reproduction: sexual, vegetative

Ecology & Natural History

Habitat: Species is distributed in margins of oxbow lakes and sloughs along rivers; in swampy ground of major rivers and their tributaries.

ILPIN Notes: Seed company no. 11. Weediness - non-weedy (from PIN). Flowers are in globose heads. Species has persistent creeping rhizomes and stiff erect leaves. Marshbirds and shorebirds eat seeds as food. Regarding aquatic species food value and species cover, this pertains to aquatic furbearers (especially muskrats). Form - roots. Tubers, produced in the autumn, can be eaten.

Functional Relationships:

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

Human Relationships:

  • Edibility [?] : yes
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value: waterfowl: good; small non-game bird: good; aquatic species: good
  • Cover Value: aquatic species: good

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

  • Entire State: 5
  • Chicago Area: 6

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