Illinois Natural History Survey - University of Illinois

Ratibida columnifera
Long-headed coneflower, Upright prairie cone-flower
Taxonomy

Synonyms:

Subspecific taxa:

Classification:

  • Magnoliophyta
    • Magnoliopsida

Other taxonomic & nomenclature sources: USDA PlantsITISThe Plant ListIPNI

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: FLNAUSDA PlantsBONAPBISON

Collections, Observations & Flowering by Month [?]

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F
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M
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M
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J
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J
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A
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N
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Collections & Observations by Decade [?]

Species Status

Status/Listing: No Information

Notes:

Origin: North America

Species Description

General: Dicot-herb, perennial

Roots: primary

Shoots: alternate leaf arrangment; simple leaf type; entire, dentate, lobed (pinnately), parted (pinnately) leaf margin; Other leaf venation; awl-shaped, linear leaf shape

Inflorescence: head

Flowers: perfect; complete, regular, irregular; yellow, violet; epigynous ovary position

Fruit: achene

Physiology: autotrophic; C3 C02 fixation

Reproduction: vegetative, apomictic

Ecology & Natural History

Habitat: Species is distributed on waste ground, along roadsides and railroads.

ILPIN Notes: Disk florets are perfect and sterile, ray florets are sterile. The rays are long, equaling or shorter than the disk which is cylindrical or columnlike. Leaves occasionally 2-3 cleft. There are two varieites - the typical variety with yellow rays and the other variety with dark or partly dark rays. Species was introduced from the western states. A large current population occurs at an unusual site in Kane co.; scattered in northern 2/3 of Illinois.

Functional Relationships:

  • Pollinators: insect
  • Dispersal:
  • Mycorrhizae:
  • N2 fixation:

Human Relationships:

  • Edibility [?] :
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

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

  • Entire State:
  • Chicago Area:

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