Illinois Natural History Survey - University of Illinois

Ratibida pinnata
Pinnate prairie coneflower, Grayhead prairie coneflower, Yellow coneflower
Taxonomy

Synonyms:

Subspecific taxa:

Classification:

  • Magnoliophyta

Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI

Images

   
View all images. View all at PhytoImages.
Species Distribution
If map does not appear refresh browser Refresh
Click map to view & download detailed occurrence records

More about map & occurrence records

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

Collections, Observations & Flowering by Month [?]

J
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
D
0

Collections & Observations by Decade [?]

Species Status

Status/Listing: No Information

Notes:

Origin: Native

Species Description

General: Dicot-herb, perennial

Roots: adventitious, rhizomes

Shoots: alternate leaf arrangment; simple leaf type; entire, dentate, lobed (pinnately), parted (pinnately) leaf margin; Pinnate leaf venation; oblong leaf shape

Inflorescence: head

Flowers: perfect; incomplete, not sepals; yellow; epigynous ovary position

Fruit: achene

Physiology: autotrophic

Reproduction: vegetative

Ecology & Natural History

Habitat: Species is distributed on degraded prairie, borders of woods.

ILPIN Notes: Species is common in northern 3/4 of Illinois, and occasional in southern l/4. Disk florets are perfect and fertile; ray florets are sterile. Rays much exceeding the disk, disk globose to short-ellipsoid. Leaf segments lanceolate and those of the lower and middle leaves usually toothed. Pappus none. Leaf venation may be pinnate or other.

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: 4
  • Chicago Area: 4

Post a Comment or Question About this Plant
Name

Email address (required)

Comment? Question? 300 word limit (required)




Enter the text code above (required)

Note: All submissions are moderated and only some are posted. Posted comments may be edited for length. An email address will not be posted, but it is required for communication with the site moderator. Comments focused outside of Illinois and neighboring states may be posted, but more attention will be given to Illinois centered information. Thanks for your interest.