Illinois Natural History Survey - University of Illinois

Acer rubrum
Red maple, Swamp maple
Taxonomy

Synonyms: Acer rubrum var. tomentosum, Acer rubrum tomentosum, Acer rubrum var. rubrum

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

Collection & Observation Phenology [?]

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Collection & Observation Timeline [?]

Species Status

Status/Listing: No Information

Notes:

Origin: Native

Species Description

General: Dicot-woody, perennial

Roots: primary

Shoots: opposite leaf arrangment; simple leaf type; serrate, lobed (pinnately), lobed (palmately) leaf margin; Palmate leaf venation; lanceolate, oval leaf shape

Inflorescence: umbel

Flowers: perfect, unisexual, dioecious; 5 merous; complete, regular; red, yellow; perigynous ovary position

Fruit: samara

Physiology: autotrophic; C3 C02 fixation

Ecology & Natural History

Habitat: Species is distributed in low woods; upland slopes; bluff tops; rocky woods.

ILPIN Notes: Flowers are born from dense clusters of lateral buds; leaves are white or gray and either smooth or hairy on the lower surface; nearly as broad as long; shallow lobes. Wood is moderately heavy, soft, and neither strong nor durable. This pertains to terrestrial furbears (esp. squirrels) who eat seeds, flowers, bark, twigs. Concerning small non-game bird food value, this especially applies to evening grosbeaks. Form - seedlings, whips, balled & burlapped, bare root, seeds. Species may also be monoecious. Seed company numbers: 2, 14, 16, 18, 19, 21, 24, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 52.

Functional Relationships:

  • Pollinators insects (insect)

Human Relationships:

  • Edibility [?] :
  • Showy Flowers: low

Wildlife and Livestock Information:

  • Food Value: deer: good; upland game birds: good; small non-game bird: good; small mammals: good
  • Cover Value:

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

  • Entire State: 5
  • Chicago Area: 7

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