Illinois Natural History Survey - University of Illinois

Trillium sessile
Wake robin
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

Collection & Observation Phenology [?]

J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
D
0

Collection & Observation Timeline [?]

Species Status

Status/Listing: No Information

Notes:

Origin: Native

Species Description

General: Monocot, perennial

Roots: adventitious, rhizomes

Shoots: whorled leaf arrangment; simple leaf type; entire leaf margin; Parallel leaf venation; lanceolate, obovate leaf shape

Inflorescence: solitary

Flowers: perfect; 3 merous; complete, regular; yellow, green, violet, others; hypogynous ovary position

Fruit: capsule

Physiology: autotrophic

Ecology & Natural History

Habitat: Species is distributed in low, rich bottom woods of valleys, in rocky or non-rocky soils; in association with Acer saccharum, Fraxinus americana, Prunus virginiana, Quercus rubra, Tilia americana and Ulmus rubra.

ILPIN Notes: Species is scattered throughout state except in the western counties. As an emergency food, green may be cooked (Medsger). All species are emetic; roots especially so; fruits to be viewed with caution (Pammel). Regarding leaf venation, it may be parallel or other. Pammel, L.H. 1911. A Manual of Poisonous Plants. Torch Press. Cedar Rapids, Iowa. 977 pp.

Functional Relationships:

Human Relationships:

  • Edibility [?] : yes-qualified
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

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

  • Entire State: 8
  • Chicago Area: 10

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