Dyssodia papposa
Prairie dogweed, Fetid marigold Taxonomy
Synonyms: 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: No Information Notes: Origin: North America
Species Description
General: Dicot-herb, annual Roots: Shoots: opposite leaf arrangment; simple leaf type; dentate, lobed (pinnately), parted (pinnately) leaf margin; Pinnate leaf venation; awl-shaped, linear leaf shape Inflorescence: head Flowers: perfect, unisexual, monoecious; complete, incomplete, not sepals, regular, irregular; orange, yellow; epigynous ovary position Fruit: achene Physiology: autotrophic; C3 C02 fixation Reproduction: sexual
Ecology & Natural History
Habitat: Species is distributed along banks, waste ground, roadsides, and railroads. Species is very prominent along interstates in northern Illinois. ILPIN Notes: Pammel, Louis H. 1911. A Manual of Poisonous Plants. Torch Press, Cedar Rapids, Iowa. 977 pp. Although widespread and native in Missouri, even there it appears to grow as if introduced. There is an amazing increase in abundance. Species has strong, disagreeable odor from large, pellucid glands, especially on the bracts of the head. Species was introduced from west and south of Illinois. Disk flowers are perfect and fertile; the few ray flowers are pistillate and fertile. Functional Relationships:
Human Relationships:
Wildlife and Livestock Information:
Coefficient of Conservatism (C-value) [?] :
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