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Ratibida pinnata (Vent.) Barnhart
Life   Plantae   Dicotyledoneae   Asteraceae   Ratibida

Ratibida pinnata
© Copyright Bobby Hattaway 2011 · 5
Ratibida pinnata

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Ratibida pinnata
© Copyright Bobby Hattaway 2011 · 5
Ratibida pinnata
Ratibida pinnata
© Copyright Bobby Hattaway 2011 · 5
Ratibida pinnata

Ratibida pinnata
© Copyright Bobby Hattaway 2011 · 5
Ratibida pinnata
Ratibida pinnata
© Copyright Bobby Hattaway 2011 · 5
Ratibida pinnata

Ratibida pinnata
© Copyright Bobby Hattaway 2011 · 5
Ratibida pinnata
Ratibida pinnata
© Copyright Bobby Hattaway 2011 · 5
Ratibida pinnata

Ratibida pinnata, leaf and flower
© Kay Yatskievych, 2003 · 1
Ratibida pinnata, leaf and flower

Associates · map
FamilyScientific name @ source (records)
Apidae  Bombus griseocollis @ MLSB__N16- (2)

Melissodes agilis @ MLSB__N16- (1)

Melissodes subillatus @ MLSB__N16- (2)

Triepeolus lunatus @ MLSB__N16- (2)
Botryosphaeriaceae  Phyllosticta entylomicola @ BPI (2)
Chrysomelidae  Diabrotica undecimpunctata @ MLSB__N16- (1)
Coccinellidae  Coleomegilla maculata @ I_LB (1)

Hippodamia variegata @ MLSB__N16- (1)
Entylomataceae  Entyloma compositarum @ BPI (2)
Erysiphaceae  Oidium @ BPI (1)
Halictidae  Halictus ligatus @ MLSB__N16- (4)

Lasioglossum ( @ MLSB__N16- (1)
Megachilidae  Coelioxys alternata @ MLSB__N16- (1)

Megachile mendica @ MLSB__N16- (1)

Megachile texana @ MLSB__N16- (1)
Mycosphaerellaceae  Cercospora ratibidae @ BPI (1)
Peronosporaceae  Plasmopara halstedii @ BPI (4)
Syrphidae  Allograpta obliqua @ MLSB__N16- (1)

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Following modified from MissouriPlants.com
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Ratibida pinnata (Vent.) Barnh.

Gray Head Coneflower

Ratibida pinnata plant

Family - Asteraceae

Stems - To -2m tall, multiple from base, herbaceous, erect, branching above, hirsute, scabrous, carinate, from caudex.

Ratibida pinnata stem

Leaves - Alternate, sessile, pinnatifid to pinnately divided, +/-18cm long, scabrous, hirsute on midrib, with typically 3-11 lobes. Lobes entire to coarsely toothed, often divided again. Basal leaves drying before flowers.

Ratibida pinnata leaves

Inflorescence - Single flower heads from long(+/-20cm) naked peduncles.

Involucre - Phyllaries spreading to reflexed, +/-9mm long, 2mm broad, subulate, antrorse strigose, scabrous.

Ratibida pinnata involucre Involucre.

Ray flowers - Flowers typically 10 in number. Ligule yellow, +/-6cm long, to 1.5cm broad, pubescent below and less so above, notched at apex, spreading to reflexed. Flowers sterile. Achene 2.5mm long, pubescent at apex. Pappus absent.

Disk flowers - Disk to 1.5cm in diameter, 2cm long, subglobose. Flowers fertile. Corolla tube to 2mm long, glabrous, 5-lobed. Lobes .2mm long, acute, deep brownish-purple, spreading. Stamens 5. Anthers deep brownish-purple, connate around style. Pollen yellow. Style exserted, bifurcate. Stigma deep brownish-purple. Achene slightly flattened, 3mm long, white, glabrous. Pappus absent. Receptacle 1cm long, 3mm broad, cylindrical. Chaff with purple margins, white below, green at apex, 5mm long, partially surrounding achene.

Ratibida pinnata flowers

Flowering - May - September.

Habitat - Prairies, thickets, woodland edges, streambanks, railroads.

Origin - Native to U.S.

Other info. - This plant is common in the state and easy to ID in the field. The subglobose disk, long ray ligules, and pinnate leaves are good characteristics to look for.
I first photographed this plant by Buffalo Creek in Ripley County. Besides being a great place for plants, Buffalo Creek is loaded with crayfish:

Oronectes luteus Oronectes luteus

Oronectes punctinamus Oronectes punctinamus

I had tons of fun snorkeling and catching these crayfish in the crystal clear waters of Buffalo Creek. As tempted as I was, I did not eat any for dinner that evening.

Plant photographs taken off Hwy H., Shannon County, MO., 7-3-03 and 6-25-04.

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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=RAPI ---> https://plants.usda.gov/java/profile?symbol=RAPI
https://plants.usda.gov/java/profile?symbol=RAPI ---> http://plants.usda.gov/core/profile?symbol=RAPI
http://plants.usda.gov/core/profile?symbol=RAPI ---> https://plants.usda.gov/core/profile?symbol=RAPI
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You are here: Home / Plant Profile

Ratibida pinnata (Vent.) Barnhart
pinnate prairie coneflower

Image of Ratibida pinnata

General Information
Symbol: RAPI
Group: Dicot
Family: Asteraceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : CAN   N
L48   N
Fact Sheet (pdf) (doc) Plant Guide (pdf) (doc)
Data Source and Documentation
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green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Ratibida thumbnails at the Plants Gallery

©Thomas G. Barnes. Usage Requirements .

©Thomas G. Barnes. Barnes, T.G., and S.W. Francis. 2004. Wildflowers and ferns of Kentucky . University Press of Kentucky. Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 3: 474. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .



Symbol Scientific Name
LEPI14 Lepachys pinnata (Vent.) Torr. & A. Gray
RUPI3 Rudbeckia pinnata Vent.


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae ⁄ Compositae – Aster family
Genus Ratibida Raf. – prairie coneflower
Species Ratibida pinnata (Vent.) Barnhart – pinnate prairie coneflower

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Pennsylvania prairie coneflower Extirpated

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (RAPI)
CalPhotos (RAPI)
Integrated Taxonomic Information System (RAPI)
Integrated Taxonomic Information System (RUPI3)
Kemper Center for Home Gardening (RAPI)
Lady Bird Johnson Wildflower Center Native Plant Information Network (RAPI)
Native Plants Network (RAPI)
USF Atlas of Florida Vascular Plants (RAPI)
University of Tennessee Herbarium (Distribution) (RAPI)
University of Wisconsin - Stevens Point Freckmann Herbarium (RAPI)
Related Websites
EPA-Green Landscaping With Native Plants (RAPI)
IL-Illinois Plant Information Network (RAPI)
IL-Illinois Wildflowers (RAPI)
KS-Kansas Wildflowers and Grasses (RAPI)
MI-Michigan State University Extension (RAPI)
MO-Missouri Plants (RAPI)
NC-Plant Fact Sheets (RAPI)
TN-Tennessee Valley Authority (RAPI)
Wildflowers of the Southeastern U.S. (RAPI)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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Link to Flora of North America home
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FNA Vol. 21 Page 59 , 61, 62 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 21 | Asteraceae | Ratibida

3. Ratibida pinnata (Ventenat) Barnhart, Bull. Torrey Bot. Club. 24: 410. 1897.

Grayhead or pinnate prairie coneflower

Rudbeckia pinnata Ventenat, Descr. Pl. Nouv., plate 71. 1802

Perennials, to 125+ cm; fibrous rooted (arising from stout rhizomes or woody caudices). Leaves 5—40 × 3—15+ cm, pinnatifid to pinnate, lobes 3—9, narrowly lanceolate to ovate, 1—15 × 0.2—3.5 cm, faces strigose, gland-dotted. Heads mostly 1—12, held well beyond leaves. Peduncles 3—27+ cm (ribs tan, prominent). Phyllaries 10—15, outer linear, 3—15 × 1—3 mm, inner lanceolate-ovate, 3—6 × 0.7—3 mm. Paleae 1.2—5 × 1—1.8 mm, resin glands linear to oblanceolate, 2—3.3 mm. Ray florets 6—15; corollas yellow, 2.5—3.8 mm, tubes ca. 1—3 mm, hirsute, laminae linear-elliptic to oblong-oblanceolate, 16—60 × 4—15 mm. Discs ellipsoid to globular or ovoid, 10—25 × 10—18 mm. Disc florets 100—200+; corollas greenish yellow, often purplish distally, 2.5—3.8 mm; style branches ca. 1.8 mm, proximal 1 /2 stigmatic, apices subulate. Cypselae linear-oblanceoloid, 2—4 × 1—2.3 mm, margins usually glabrous, sometimes adaxial ciliate; pappi 0 or of 1—2 toothlike projections. 2 n = 28.

Flowering May—Oct. Prairies, woodland openings and borders, limestone outcrops; 10—300 m; Ont.; Ala., Ark., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Mass., Mich., Minn., Miss., Mo., Nebr., N.Y., Ohio, Okla., S.Dak., Tenn., Vt., Wis.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Ratibida+pinnata&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Ratibida+pinnata&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 8
Query: SELECT * FROM img WHERE ready=1 and taxon like "Ratibida pinnata%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Ratibida pinnata
Ratibida pinnata
Pinnate Prairie Coneflower
ID: 0000 0000 0105 0479 [detail]
© 2005 Louis-M. Landry

Ratibida pinnata
Ratibida pinnata
Gray-headed Prairie-coneflower
ID: 0000 1111 1234 2185 [detail]
© 2016 Keir Morse

Ratibida pinnata
Ratibida pinnata
Gray-headed Prairie-coneflower
ID: 0000 1111 1234 2186 [detail]
© 2016 Keir Morse

Ratibida pinnata
Ratibida pinnata
Gray-headed Prairie-coneflower
ID: 0000 1111 1234 2187 [detail]
© 2016 Keir Morse

Ratibida pinnata
Ratibida pinnata
ID: 0000 0000 0418 0822 [detail]
© 2018 Zoya Akulova

Ratibida pinnata
Ratibida pinnata
ID: 0000 0000 0519 0154 [detail]
© 2019 Zoya Akulova

Ratibida pinnata
Ratibida pinnata
ID: 0000 0000 0319 1075 [detail]
© 2019 Zoya Akulova

Ratibida pinnata
Ratibida pinnata
ID: 0000 0000 0319 1074 [detail]
© 2019 Zoya Akulova

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   

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