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Rudbeckia laciniata L.
CONEFLOWER
Cutleaf coneflower

Life   Plantae   Dicotyledoneae   Asteraceae   Rudbeckia

Rudbeckia laciniata
© John Pickering, 2004-2017 · 6
Rudbeckia laciniata

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Rudbeckia laciniata, Cutleaf Coneflower
© John Pickering, 2004-2017 · 6
Rudbeckia laciniata, Cutleaf Coneflower
Rudbeckia laciniata
© Les Mehrhoff, 2008-2010 · 5
Rudbeckia laciniata

Rudbeckia laciniata
© John Pickering, 2004-2017 · 5
Rudbeckia laciniata
Rudbeckia laciniata, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia laciniata, inflorescence - whole - unspecified

Rudbeckia laciniata, leaf - on upper stem
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia laciniata, leaf - on upper stem
Rudbeckia laciniata, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia laciniata, leaf - basal or on lower stem

Rudbeckia laciniata, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia laciniata, stem - showing leaf bases
Rudbeckia laciniata, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia laciniata, whole plant - in flower - general view

Rudbeckia laciniata, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia laciniata, inflorescence - whole - unspecified
Rudbeckia laciniata
© Les Mehrhoff, 2008-2010 · 3
Rudbeckia laciniata

Rudbeckia laciniata, Green-headed Coneflower
© Copyright Sheryl Pollock 2011 · 3
Rudbeckia laciniata, Green-headed Coneflower
Rudbeckia laciniata
© Copyright Michael Strickland, 2008 · 1
Rudbeckia laciniata

Rudbeckia laciniata
© Copyright Michael Strickland, 2008 · 1
Rudbeckia laciniata
Rudbeckia laciniata
© Copyright Michael Strickland, 2008 · 1
Rudbeckia laciniata

Hosts · map
FamilyScientific name @ source (records)
_  2007-09-29 19 @ (1)

2007-09-29 19 @ (1)

2007-09-29 19 @ (1)

Associates · map
FamilyScientific name @ source (records)
Agaricaceae  Phoma herbarum @ BPI (1)

Phoma rudbeckiae @ BPI (2)
Andrenidae  Andrena aliciae @ AMNH_BEE (3); BBSL (1)

Pseudopanurgus andrenoides @ AMNH_BEE (1)

Pseudopanurgus labrosus @ AMNH_BEE (3)
Aphididae  Uroleucon ( @ NCSU (49)
Apidae  Bombus ashtoni @ AMNH_BEE (9)

Bombus citrinus @ AMNH_BEE (1)

Bombus fervidus @ BBSL (2)

Bombus huntii @ BBSL (84)

Bombus morrisoni @ BBSL (1)

Bombus rufocinctus @ AMNH_BEE (3)

Bombus sonorus @ I_JSA (1)

Bombus ternarius @ AMNH_BEE (10)

Bombus terricola @ AMNH_BEE (12)

Bombus vagans @ AMNH_BEE (2)

Melissodes bidentis @ AMNH_BEE (3); BBSL (1)

Melissodes confusus @ I_JSA (1)

Melissodes desponsa @ AMNH_BEE (2)

Melissodes trinodis @ AMNH_BEE (1)

Melissodes @ I_LKD (3)

Syntrichalonia exquisita @ I_JSA (4)

Triepeolus cressonii @ AMNH_BEE (2)

Triepeolus donatus @ AMNH_BEE (1)

Triepeolus grandis @ I_JSA (1)

Xylocopa californica @ I_JSA (2)

Xylocopa virginica @ BBSL (5)
Bombyliidae  Villa lateralis @ I_LKD (1)
Botryosphaeriaceae  Phyllosticta rudbeckiae @ BPI (2)
Cicadellidae  Erythroneura ziczac @ III (1)
Entylomataceae  Entyloma anceps @ BPI (2)

Entyloma compositarum @ BPI (8)
Erysiphaceae  Erysiphe cichoracearum @ BPI (20); 561250B (1); 561250A (1)

Phyllactinia corylea @ BPI (2)
Glomerellaceae  Colletotrichum dematium @ BPI (2)

Colletotrichum rudbeckiae @ BPI (3)
Halictidae  Lasioglossum coriaceum @ AMNH_BEE (2)

Lasioglossum paraforbesii @ AMNH_BEE (1)

Lasioglossum pectorale @ AMNH_BEE (1)

Lasioglossum zonulum @ AMNH_BEE (2)

Nomia angustitibialis @ I_JSA (6)
Megachilidae  Megachile ainu @ BBSL (1)

Megachile fidelis @ BBSL (1)

Megachile frigida @ BBSL (1)

Megachile inimica @ I_JSA (3)

Megachile latimanus @ AMNH_BEE (2)

Megachile mendica @ BBSL (2)

Megachile parallela @ I_JSA (1)

Paranthidium jugatorium @ I_JSA (1)
Miridae  Slaterocoris breviatus @ AMNH_PBI (1)

Slaterocoris stygicus @ AMNH_PBI (2)
Mycosphaerellaceae  Cercospora tabacina @ BPI (5)

Ramularia rudbeckiae @ BPI (35)

Ramularia @ BPI (1)

Septoria rudbeckiae @ BPI (7)
Peronosporaceae  Plasmopara halstedii @ BPI (17); 865273A (1)
Phaeosphaeriaceae  Leptosphaeria doliolum @ BPI (1)

Ophiobolus @ BPI (1)
Poaceae  Ammophila @ I_JSA (1)
Pucciniaceae  Puccinia dioicae @ BPI (1)

Puccinia extensicola @ BPI (1)

Uromyces perigynius @ BPI (25)

Uromyces rudbeckiae @ 865273B (1); BPI (86)

Uromyces solidaginis @ BPI (2)
Synchytriaceae  Synchytrium aureum @ BPI (6)
Turritellidae  Vermicularia dematium @ BPI (6)

Vermicularia @ BPI (2)
Uropyxidaceae  Aecidium compositarum @ BPI (2)
_  Cicinobolus cesatii @ BPI (5)

Eumeninae @ I_JSA (2)

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Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Rudbeckia laciniata L. var. laciniata Green-head Coneflower
Asteraceae — Aster family
Native
Rudbeckia laciniata var. laciniata
Brandywine Creek State Park
July 2001

More information on this plant, from other sources.


Copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
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Rudbeckia laciniata L.

Rudbeckia laciniata plant

Family - Asteraceae

Stems - To 3m tall, from fibrous and fleshy roots, erect, branching, single or multiple from the base, slightly fragrant, glabrous, glaucous, herbaceous.

Rudbeckia laciniata stem Stem.

Leaves - Alternate, petiolate, reduced to bracts in inflorescence and often unlobed near the apex of the plant. Petioles to +10cm long, with a shallow adaxial groove. Blades deeply lobed (the lobes often divided again), to +/-25cm broad, +/-40cm long. Lobes serrate, deep green above, light green below, glabrous but the margins of the serrations often antrorse strigillose. The lateral venation splitting at the base of the sinuses.

Rudbeckia laciniata leaves Pressed leaves.

Rudbeckia laciniata leaf Fresh leaf.

Inflorescence - Loose cymose arrangement of terminal flowerheads, bracteate. Peduncles to 15cm long.

Involucre - Flat, to -3cm broad. Phyllaries unequal, some or all reflexed, linear oblong, in one or two series, to 1.5cm long, -6mm broad, acute, green, glabrous.

Rudbeckia laciniata involucre Involucre.

Ray flowers - +/-9 per flowerhead, sterile. Ligule yellow, antrorse appressed pubescent externally, glabrous internally, with a single notch at apex, oblong-elliptic, 1.3cm broad, +/-4cm long. Achenes 3mm long in flower, glabrous, angled.

Rudbeckia laciniata flowers

Disk flowers - Disk to 2cm in diameter, conic to globose. Corolla yellow, glabrous, 5-lobed, -4mm long. Lobes erect, .6mm long, triangular. Stamens 5, adnate at the base of the corolla tube. Filaments yellow, compressed, glabrous, 2mm long. Anthers deep purple, connate around the style, -2mm long, mostly exserted. Style exserted, bifurcate, the apices spreading, glabrous, pale yellow. Achenes in flower pinkish, 4-angled, 4mm long, glabrous, becoming deep purple to black and 5mm long in fruit. Receptacle cylindric. Chaff slightly enclosing the achenes, pubescent at the apex, whitish to whitish-green, 5mm long.

Rudbeckia laciniata disk Disk flowers close-up.

Flowering - July - September.

Habitat - Rich low woods, streambanks, woodlands along lakes and sloughs, wet thickets.

Origin - Native to U.S.

Other info. - This species is common throughout Missouri. The plant gets quite large and produces many flowers. Some varieties of this species are cultivated frequently.
Traditionally the plant was used to treat indigestion, burns, and other ailments. The plant may be toxic if eaten in large quantities.
The species epithet " laciniata " means "torn" because of the divided nature of the leaves.

Photographs taken in the Ozark National Scenic Riverways, Shannon County, MO., 8-2-03.


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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=RULA3 ---> https://plants.usda.gov/java/profile?symbol=RULA3
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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 43 , 45, 46, 49 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 21 | Asteraceae | Rudbeckia

7. Rudbeckia laciniata Linnaeus, Sp. Pl. 2: 906. 1753.

Cutleaf coneflower

Perennials, 50—300 cm (rhizomes often elongate, slender, plants colonial, roots fibrous). Leaves green, blades broadly ovate to lanceolate, all but distalmost 1—2-pinnatifid or pinnately compound, leaflets/lobes 3—11, bases cuneate to attenuate or cordate, margins entire or dentate, apices acute to acuminate, faces glabrous or hairy (sometimes with translucent patches); basal (often withering before flowering) petiolate, 15—50 × 10—25 cm; cauline petiolate or sessile, mostly lobed to pinnatifid, sometimes not lobed, 8—40 × 3—20 cm. Heads (2—25) in loose, corymbiform arrays. Phyllaries to 2 cm (8—15, ovate to lanceolate, margins mostly ciliate, glabrous or hairy). Receptacles hemispheric or ovoid to globose; paleae 3—7 mm, apices (at least of proximal) truncate or rounded, abaxial tips densely hairy. Ray florets 8—12; laminae elliptic to oblanceolate, 15—50 × 4—14 mm, abaxially hairy. Discs 9—30 × 10—23 mm. Disc florets 150—300+; corollas yellow to yellowish green (lobes yellow), 3.5—5 mm; style branches 1—1.5 mm, apices acute to rounded. Cypselae 3—4.5 mm; pappi coroniform or of 4 scales, to 1.5 mm.

Varieties 5 (5 in the flora): North America.

Cultivars of Rudbeckia laciniata are grown as ornamentals. The cultivar 'golden-glow' is widely planted and occasionally escapes cultivation. Among the varieties traditionally recognized in floristic treatments, vars. ampla and heterophylla are the most distinctive. Detailed investigation may show that the other varieties, from eastern North America, represent broadly intergrading forms that should be subsumed under var. laciniata .

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+laciniata+var.+ampla&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=Rudbeckia+laciniata+var.+ampla&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
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Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+laciniata+var.+laciniata+&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=Rudbeckia+laciniata+var.+laciniata+&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
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Following modified from CalPhotos
   Top | See original

http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+laciniata&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=Rudbeckia+laciniata&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
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Updated: 2017-11-25 04:02:58 gmt
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