Illinois Natural History Survey - University of Illinois

Fraxinus americana
White ash
Taxonomy

Synonyms: Fraxinus biltmoreana

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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F
0
M
0
A
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M
0
J
0
J
0
A
0
S
0
O
0
N
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D
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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; compound, pinnately leaf type; crenate leaf margin; Pinnate leaf venation; lanceolate leaf shape

Inflorescence: panicle

Flowers: unisexual, dioecious; incomplete, not petals; violet; hypogynous ovary position

Fruit: samara

Physiology: autotrophic; C3 C02 fixation

Ecology & Natural History

Habitat:

ILPIN Notes: Plant form - whips, bare root, balled and burlapped, seedlings, seeds. Regarding waterfowl food value, this pertains especially to woodducks. Regarding aquatic species food value, this pertains to aquatic furbearers (especially beaver). Causes hayfever Branchlets and petioles glabrous; lower leaf surface pale and sometimes hairy; wing does not extend beyond seed. Seed company numbers: 2, 14, 16, 18, 19, 20, 21, 23, 24, 26, 27, 28, 29, 39, 40, 52.

Functional Relationships:

  • Pollinators insects (wind)

Human Relationships:

  • Edibility [?] :
  • Showy Flowers: low

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value: small non-game bird: good

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

  • Entire State: 4
  • Chicago Area: 5

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