CPC Plant Profile: Philadelphia Fleabane
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Plant Profile

Philadelphia Fleabane (Erigeron philadelphicus var. provancheri)

  • Global Rank: T3 - Vulnerable
  • Legal Status: N/A
  • Family: Asteraceae
  • State: NY, ON, QC, VT
  • Nature Serve ID: 153135
  • Date Inducted in National Collection: 12/01/2021

Erigeron philadelphicus var. provancheri is a rare variety of the common Philadelphia Fleabane (Erigeron philadelphicus var philadelphicus). It looks like a typical Daisey with white to pick petals. It is distinguished as a unique variety by several characteristics, including shorter flowering stalks than the common Philadelphia Fleabane. Both varieties can be distinguished from Erigeron pulchellus because they have many more flowering heads and many more flowers per head. Erigeron philadelphicus var. provancheri is of conservation concern because it is extremely rare. It is only found in the upper Northeastern USA and Eastern Canada in a very specific habitat; high-pH scoured shore ledges.

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Taxon Erigeron philadelphicus var. provancheri
Authority (Victorin & Rouss.) B. Boivin
Family Asteraceae
CPC Number 10048
ITIS 527954
Common Names Provancher’s fleabane | Philadelphia fleabane
Associated Scientific Names Erigeron philadelphicus var. provancheri | Erigeron provancheri
State Rank
State State Rank
New York S1
Ontario SU
Quebec S3
Vermont S1

Ecological Relationships

Common Name Name in Text Association Type Source InteractionID

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