Illinois Natural History Survey - University of Illinois

Platanthera clavellata
Wood orchid, Small green woodland orchid
Taxonomy

Synonyms: Habenaria clavellata

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
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F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
D
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Collection & Observation Timeline [?]

Species Status

Status/Listing: Regional Forester Sensitive Species, State Endangered

Notes:

Origin: Native

Species Description

General: Monocot, perennial

Roots: adventitious, fibrous

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

Inflorescence: spike

Flowers: perfect; 3 merous; complete, irregular; yellow, white; epigynous ovary position

Fruit: capsule

Physiology: autotrophic; C3 C02 fixation

Ecology & Natural History

Habitat: found in acid seeps in forests in Pope Co.; swale borders in Lake Co.; invades ditches and roadsides; in muck deposits of seep springs in moderate to dense shade

ILPIN Notes: Does not transplant well. rootstocks rather slender, not tuberous; one developed leaf Four populations are known. Also in Cass, Jo Daviess, Kankakee and Will countie

Functional Relationships:

  • Pollinators insects (insect)

Human Relationships:

  • Edibility [?] :
  • Showy Flowers: medium

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

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

  • Entire State: 10
  • Chicago Area: 10

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