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Rudbeckia hirta L.
BLACK-EYED-SUSAN
Rudbeckia serotina Nutt non Sweet; Blackeyed Susan; Rudbeckia serotina

Life   Plantae   Dicotyledoneae   Asteraceae   Rudbeckia

Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta

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Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta
Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta

Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta
Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta

Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta
Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta

Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta
Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta

Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta
Rudbeckia hirta
© Copyright Bobby Hattaway 2011 · 5
Rudbeckia hirta

Rudbeckia hirta, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia hirta, whole plant - in flower - general view
Rudbeckia hirta, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia hirta, inflorescence - whole - unspecified

Rudbeckia hirta, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia hirta, inflorescence - whole - unspecified
Rudbeckia hirta, inflorescence - ventral view of flower + perianth
© Copyright Steve Baskauf, 2002-2011 · 4
Rudbeckia hirta, inflorescence - ventral view of flower + perianth

Associates · map
FamilyScientific name @ source (records)
Andrenidae  Andrena miranda @ CUIC_ENT (1)

Andrena rudbeckiae @ BBSL (2); BBSL__LSAM (2)

Andrena thaspii @ CUIC_ENT (3)

Pseudopanurgus albitarsis @ AMNH_BEE (1)
Aphididae  Macrosiphum ( @ AMNH_PBI (7)

Uroleucon ( @ NCSU (81)
Apidae  Bombus citrinus @ CUIC_ENT (1)

Ceratina calcarata @ MLSB__N16- (4)

Epeolus bifasciatus @ CUIC_ENT (1)

Epeolus canadensis @ CUIC_ENT (1)

Melissodes confusa @ AMNH_BEE (1)

Melissodes denticulata @ CUIC_ENT (3)

Melissodes druriella @ UCMS_ENT (2); CUIC_ENT (1)

Melissodes illata @ CUIC_ENT (3)

Melissodes subillatus @ MLSB__N16- (2)

Nomada cressonii @ AMNH_BEE (1)

Triepeolus donatus @ CUIC_ENT (1)

Triepeolus lunatus @ MLSB__N16- (1); UCMS_ENT (1)

Triepeolus michiganensis @ CUIC_ENT (2)

Triepeolus remigatus @ UCMS_ENT (2)
Entylomataceae  Entyloma davisii @ BPI (1)

Entyloma polysporum @ BPI (13)
Erysiphaceae  Erysiphe cichoracearum @ 561242B (1); BPI (4); 561242A (1)

Oidium @ BPI (1)
Halictidae  Augochlorella aurata @ CUIC_ENT (5); UCMS_ENT (1)

Halictus confusus @ CUIC_ENT (1)

Halictus ligatus @ BBSL (3); UCMS_ENT (1)

Lasioglossum ( @ MLSB__N16- (1)

Lasioglossum admirandum @ BBSL (1)

Lasioglossum cinctipes @ CUIC_ENT (1)

Lasioglossum coreopsis @ BBSL (1)

Lasioglossum creberrimum @ AMNH_BEE (2)

Lasioglossum pectorale @ AMNH_BEE (1)

Lasioglossum perpunctatum @ CUIC_ENT (1)

Lasioglossum versatum @ CUIC_ENT (2)

Sphecodes heraclei @ CUIC_ENT (1)
Megachilidae  Coelioxys alternata @ CUIC_ENT (1); AMNH_BEE (1)

Megachile fidelis @ BBSL (1)

Megachile latimanus @ CUIC_ENT (2)

Megachile mendica @ UCMS_ENT (1)

Megachile petulans @ BBSL (2)

Megachile policaris @ BBSL (2)

Megachile pugnata @ CUIC_ENT (1); AMNH_BEE (1)

Megachile relativa @ CUIC_ENT (1)

Megachile xylocopoides @ BBSL (1); AMNH_BEE (1)
Mycosphaerellaceae  Septoria rudbeckiae @ BPI (3)
Peronosporaceae  Plasmopara halstedii @ BPI (3)
Pucciniaceae  Puccinia helianthi @ BPI (2)

Uromyces rudbeckiae @ BPI (1)
Reduviidae  Apiomerus crassipes @ MEMU_ENT (1)
Uropyxidaceae  Aecidium batesii @ BPI (2)
_  07-27-2012Image 225 @ I_SUR (1)

Drought2012pictures 092 @ I_SUR (1)

untitled @ I_LB (1)

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Following modified from Delaware Wildflowers
   Top | See original

Delaware Wildflowers  •  Scientific names

Rudbeckia hirta L. var. pulcherrima Farw. Black-eyed-susan
Asteraceae — Aster family
Native
Rudbeckia hirta var. pulcherrima
White Clay Creek State Park -- Judge Morris Estate
June 2001 Rudbeckia hirta var. pulcherrima
White Clay Creek State Park -- Judge Morris Estate
July 2014

More information on this plant, from other sources.


Copyright David G. Smith

Delaware Wildflowers main page

Following modified from Plants Database, United States Department of Agriculture
   Top | See original

http://plants.usda.gov/java/profile?symbol=RUHI2 ---> https://plants.usda.gov/java/profile?symbol=RUHI2
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://plants.usda.gov/java/profile?symbol=RUHI2

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
 
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FNA Vol. 21 Page 44, 53, 57 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 21 | Asteraceae | Rudbeckia

19. Rudbeckia hirta Linnaeus, Sp. Pl. 2: 907. 1753.

Black-eyed Susan

Annuals, biennials, or perennials, to 100 cm (taprooted or roots fibrous). Stems hispid to hirsute (hairs spreading, 1+ mm). Leaves: blades elliptic, lanceolate, or ovate (not lobed), bases attenuate to cuneate, margins entire or serrate, apices acute, faces hispid to hirsute; basal petiolate, blades 8—30 × 0.5—7 cm; cauline petiolate or sessile, blades (sometimes pandurate) 3—20 × 0.4—4 cm. Heads borne singly or (2—5) in loose, corymbiform arrays. Phyllaries to 3 cm (faces hispid to hirsute). Receptacles hemispheric to ovoid; paleae 4—6 mm, apices acute, often attenuate, abaxial tips hirsute to hispid. Ray florets 8—16; laminae (usually uniformly yellow to yellow-orange or with a basal maroon splotch, sometimes mostly maroon) elliptic to oblong or oblanceolate, 15—45 × 5—10 mm, abaxially hispid to hirsute. Discs 12—22 × 10—20 mm. Disc florets 250—500+; corollas proximally yellowish green, distally brown-purple, 3—4.2 mm; style branches ca. 1.5 mm, apices subulate. Cypselae 1.5—2.7 mm; pappi 0.

Varieties 4 (4 in the flora): e North America.

Some strains of Rudbeckia hirta are cultivated and/or used in seed mixes for "re-naturalization" and erosion control.

Following modified from CalPhotos
   Top | See original

http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+hirta+var.+pulcherrima&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+hirta+var.+pulcherrima&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+hirta+var.+pulcherrima&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

Following modified from CalPhotos
   Top | See original

http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+hirta+var.+angustifolia&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+hirta+var.+angustifolia&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+hirta+var.+angustifolia&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

Following modified from CalPhotos
   Top | See original

http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+hirta&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+hirta&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Rudbeckia+hirta&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

Updated: 2017-12-14 21:50:20 gmt
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