Platanthera ciliaris
Yellow fringed orchid, Orange fringed orchid Taxonomy
Synonyms: Habenaria ciliaris Subspecific taxa: Classification:
Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI 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: FLNA;  USDA Plants;  BONAP;  BISON
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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 Reproduction: sexual, vegetative
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:
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