Senecio glabellus
Ragwort, Cress-leaf groundsel Taxonomy
Synonyms: Packera glabella 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: No Information Notes: Origin: Native
Species Description
General: Dicot-herb, biennial, annual Roots: adventitious, fibrous Shoots: alternate leaf arrangment; simple leaf type; serrate, lobed (pinnately), parted (pinnately) leaf margin; Pinnate leaf venation; linear, oblong leaf shape Inflorescence: head Flowers: perfect, unisexual, monoecious; complete, incomplete, regular, irregular; yellow; epigynous ovary position Fruit: achene Physiology: autotrophic Reproduction: sexual
Ecology & Natural History
Habitat: Species is distributed in sloughs, ditches, river valleys, and fallow fields. ILPIN Notes: Especially in alluvial and low bottoms, it often covers large areas in early spring, forming dense stands of yellow with showy flower-head clusters. Plants are lacking the basal leaves so common in other species of this genus. Disk florets are perfect and fertile; ray florets are pistillate and fertile. Functional Relationships:
Human Relationships:
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Coefficient of Conservatism (C-value) [?] :
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