Platanthera flava
Tubercled orchid, Palegreen orchid, Southern rein orchid Taxonomy
Synonyms: Habenaria flava, Platanthera flava var. flava, Habenaria scutellata, Perularia flava, Perularia scutellata, Habenaria flava var. flava, Perularia bidentata Subspecific taxa: Classification:
Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI 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: FLNA;  USDA Plants;  BONAP;  BISON
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Species Status
Status/Listing: State threatened, Regional Forester Sensitive Species Notes:Note that the Endangered/Threatened status of this species treats var. flava and var. herbiola as a single entity, but both are rare and distinct enough from one another to warrant consideration on their own. Origin: Native
Species Description
General: Monocot, perennial Roots: adventitious, stolons, 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; green; epigynous ovary position Fruit: capsule Physiology: autotrophic; C3 C02 fixation Reproduction: sexual, vegetative
Ecology & Natural History
Habitat: Associates with Liquidambar styraciflua, Fraxinus pennsylvanica, Acer rubrum, Quercus shumardii, Ulmus rubra. Possibly also low or level woods in valleys bordering streams and swamps; swales of river bottom prairies. ILPIN Notes: Possible emergency food-tubers and rhizomes. Does not transplant well. This variety is more southern and has a loose spike and shorter bracts than var. herbiola. Kurz, D.R. and M.L. Bowles. 1981. Report on the Status of Illinois Vascular Plants Potentially Endangered or Threatened in the U.S. Natural Land Institute. Rockford, IL. Functional Relationships:
Human Relationships:
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Coefficient of Conservatism (C-value) [?] :
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