Illinois Natural History Survey - University of Illinois

Platanthera ciliaris
Yellow fringed orchid, Orange fringed orchid
Taxonomy

Synonyms: Habenaria ciliaris

Subspecific taxa:

Classification:

Other taxonomic & nomenclature sources: USDA PlantsITISThe Plant ListIPNI

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: State Endangered

Notes:

Origin: Native

Species Description

General: Monocot, perennial

Roots: adventitious, tubers

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

Inflorescence: spike

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

Fruit: capsule

Physiology: autotrophic; C3 C02 fixation

Ecology & Natural History

Habitat: found in areas where a thin layer of sand has blown over a scant layer of sphagnum; possibly also in acid soils of sandy wet springy ground along spring branches; wet wooded margins of upland sink hole ponds; moist pine woods; acid peaty prairies.

ILPIN Notes: Does not do well in a wildflower garden and should be left undisturbed. Possible emergency food-tubers and rhizomes. Found in a forest preserve. Smith, G. R., and G. E. Snow. 1976. Pollination ecology of Platanthera (Habenaria) ciliaris and P. blephariglottis (Orchidaceae). Botanical Gazette 137: 133-140. One of the most beautiful and rarest of midwest orchids. Wherever Platanthera ciliaris and P. blephariglottis grow together, hybrids may occur (Smith and Snow, 1976).

Functional Relationships:

  • Pollinators insects (insect, butterfly)

Human Relationships:

  • Edibility [?] : yes
  • Showy Flowers: high

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

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

  • Entire State: 10
  • Chicago Area: 10

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