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Erigeron philadelphicus L.
ROBINS-PLANTAIN
Philadelphia fleabane

Life   Plantae   Dicotyledoneae   Asteraceae   Erigeron

Erigeron philadelphicus, Common Fleabane
© Copyright Sheryl Pollock 2011 · 6
Erigeron philadelphicus, Common Fleabane

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Erigeron philadelphicus, Philadelphia Fleabane
© Copyright Bobby Hattaway 2011 · 5
Erigeron philadelphicus, Philadelphia Fleabane
Erigeron philadelphicus, Philadelphia Fleabane
© Copyright Bobby Hattaway 2011 · 5
Erigeron philadelphicus, Philadelphia Fleabane

Erigeron philadelphicus
© Copyright Bobby Hattaway 2011 · 5
Erigeron philadelphicus
Erigeron philadelphicus
© Copyright Bobby Hattaway 2011 · 5
Erigeron philadelphicus

Erigeron philadelphicus
© Copyright Bobby Hattaway 2011 · 5
Erigeron philadelphicus
Erigeron philadelphicus
© Copyright Bobby Hattaway 2011 · 5
Erigeron philadelphicus

Erigeron philadelphicus
© Copyright Bobby Hattaway 2011 · 5
Erigeron philadelphicus
Erigeron philadelphicus
© Copyright Bobby Hattaway 2011 · 5
Erigeron philadelphicus

Erigeron philadelphicus
© Les Mehrhoff, 2008-2010 · 4
Erigeron philadelphicus
Erigeron philadelphicus, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Erigeron philadelphicus, whole plant - in flower - general view

Erigeron philadelphicus, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Erigeron philadelphicus, inflorescence - whole - unspecified
Erigeron philadelphicus, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Erigeron philadelphicus, stem - showing leaf bases

Erigeron philadelphicus, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Erigeron philadelphicus, inflorescence - whole - unspecified
Erigeron philadelphicus, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Erigeron philadelphicus, leaf - basal or on lower stem

Associates · map
FamilyScientific name @ source (records)
Andrenidae  Andrena carlini @ UCRC_ENT (1)

Andrena fragilis @ UCRC_ENT (1)

Pseudopanurgus aestivalis @ AMNH_BEE (9)

Pseudopanurgus parvus @ AMNH_BEE (2)
Aphididae  Pemphigus brevicornis @ AMNH_PBI (2); NCSU (1)

Uroleucon ( @ NCSU (13)

Uroleucon @ AMNH_PBI (1)
Apidae  Bombus citrinus @ AMNH_BEE (2)

Ceratina calcarata @ AMNH_BEE (1); UCRC_ENT (2)

Ceratina dupla @ AMNH_BEE (1)

Ceratina mikmaqi @ AMNH_BEE (12); UCRC_ENT (1)

Holcopasites pulchellus @ AMNH_BEE (1)

Nomada articulata @ AMNH_BEE (1)

Nomada subrubi @ BBSL (1)
Berytidae  Jalysus wickhami @ MEMU_ENT (1)

Jalysus @ MEMU_ENT (1)
Cercopidae  Clastoptera xanthocephala @ MEMU_ENT (2)

Philaenus spumarius @ UCR_ENT (4)
Cicadellidae  Acinopterus acuminatus @ MEMU_ENT (1)

Agallia @ MEMU_ENT (1)

Ceratagallia ( @ MEMU_ENT (1)

Empoasca bifurcata @ III (1)

Empoasca erigeron @ III (1)

Graminella nigrifrons @ MEMU_ENT (1)

Graphocephala versuta @ MEMU_ENT (1)

Macrosteles fascifrons @ MEMU_ENT (2)

Scaphoideus ( @ MEMU_ENT (1)

Scaphytopius ( @ MEMU_ENT (1)
Coccinellidae  Harmonia axyridis @ I_LB (1)
Colletidae  Hylaeus affinis @ AMNH_BEE (2); UCRC_ENT (1)

Hylaeus illinoisensis @ UCRC_ENT (1)

Hylaeus mesillae @ AMNH_BEE (2); UCRC_ENT (1)
Dothideaceae  Dothidea collecta @ BPI (1)
Entylomataceae  Entyloma compositarum @ BPI (6)
Geocoridae  Geocoris punctipes @ MEMU_ENT (7)
Halictidae  Agapostemon sericeus @ AMNH_BEE (1)

Augochlorella aurata @ AMNH_BEE (7)

Halictus ligatus @ AMNH_BEE (11)

Halictus rubicundus @ AMNH_BEE (1)

Lasioglossum albipenne @ AMNH_BEE (5)

Lasioglossum laevissimum @ AMNH_BEE (2)

Lasioglossum macoupinense @ AMNH_BEE (1)

Lasioglossum paraforbesii @ AMNH_BEE (1)

Lasioglossum pectorale @ AMNH_BEE (8)

Lasioglossum perpunctatum @ AMNH_BEE (11)

Lasioglossum semicaeruleum @ AMNH_BEE (2)

Lasioglossum versans @ AMNH_BEE (4)
Lygaeidae  Oedancala dorsalis @ MEMU_ENT (2)

Phlegyas @ MEMU_ENT (1)

Xyonysius californicus @ MEMU_ENT (3)
Megachilidae  Coelioxys moesta @ AMNH_BEE (4)

Coelioxys natalensis @ AMNH_BEE (1)

Heriades leavitti @ BBSL (1)

Heriades variolosa @ UCRC_ENT (2)

Hoplitis pilosifrons @ AMNH_BEE (2)

Hoplitis producta @ AMNH_BEE (2); UCRC_ENT (2)

Hoplitis spoliata @ AMNH_BEE (1)

Megachile brevis @ AMNH_BEE (1)

Megachile mendica @ UCRC_ENT (1)

Megachile relativa @ AMNH_BEE (14)

Osmia georgica @ BBSL (1)

Stelis labiata @ AMNH_BEE (1)

Stelis lateralis @ BBSL (1); AMNH_BEE (1)
Membracidae  Acutalis tartarea @ MEMU_ENT (1)

Micrutalis calva @ MEMU_ENT (6)

Micrutalis @ MEMU_ENT (1)
Miridae  Lygus lineolaris @ MEMU_ENT (35)

Polymerus basalis @ MEMU_ENT (13)

Pseudatomoscelis seriatus @ AMNH_PBI (1)

Taylorilygus apicalis @ MEMU_ENT (6)
Mycosphaerellaceae  Cercosporella cana @ BPI (3)

Septoria erigerontis @ BPI (11)
Pucciniaceae  Puccinia caricis-erigerontis @ BPI (1)

Puccinia dioicae @ BPI (4)

Puccinia extensicola @ BPI (7)
Rhopalidae  Harmostes reflexulus @ MEMU_ENT (6)
Synchytriaceae  Synchytrium erigerontis @ BPI (3)
_  Leptothyrium dearnessii @ BPI (1)

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FNA Vol. 20 Page 263, 310 , 319 , 320 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 20 | Asteraceae | Erigeron

112. Erigeron philadelphicus Linnaeus, Sp. Pl. 2: 863. 1753.

Philadelphia fleabane, vergerette de Philadelphie

Annuals, biennials, or short-lived perennials, 4—80 cm; fibrous-rooted, caudices simple. Stems erect (green proximally, leafy to arrays), hirsuto-villous to villous proximally, loosely strigose to sparsely hirsute distally, minutely glandular. Leaves basal (persistent or withering by flowering) and cauline; basal blades oblanceolate to obovate, (15—)30—110(—150) × 10—25(—40) mm, margins shallowly crenate to coarsely serrate or pinnately lobed, faces sparsely hirsute to villous, eglandular; cauline blades oblong-oblanceolate to lanceolate, gradually reduced distally (bases clasping to auriculate-clasping). Heads (1—)3—35 usually in corymbiform arrays (ultimate branches arising near stem tips). Involucres 4—6 × 6—15 mm. Phyllaries in 2—3 series (sometimes basally connate), hirsuto-villous to sparsely hirsute or glabrous, sometimes minutely glandular. Ray florets 150—250(—400); corollas usually white, sometimes pinkish, 5—10 mm, laminae not coiling or tardily coiling. Disc corollas 2.1—3.2 mm. Cypselae 0.6—1.1 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 15—20(—30) bristles.

Varieties 3 (3 in the flora): North America, introduced worldwide in temperate areas as a weed.

Updated: 2024-06-14 06:46:48 gmt
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