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Fam.: Asteraceae / Composite Fam.  

Synon.:  Erigeron acer  L.  subsp. acer

Genus:  Erigeron  L.
 

Authors:
   L.:  Carl von Linné (Linnaeus, 1707 - 1777), Swedish naturalist who introduced the binary naming system for plants and animals
 

Etymology:
   Erigeron:   eri = early, geron = old man
   acris:   sharp
   acer:   sharp
 

As at Erigeron muralis, the ray florets of Erigeron acris subsp. acris are somewhat longer than the disc florets, the lower stem leaves are spatulate and entire. A distinguishing difference is that sterile short shoots are sprouting out of the leaf axles of Erigeron muralis, which is not the case at Erigeron acris subsp. acris. Erigeron muralis has often dark red stems, while those of Erigeron acris subsp. acris are green, probably tinged reddish. Moreover the stem leaves of Erigeron muralis are often wavy and distorted, which is usually not the case at Erigeron acris subsp. acris.

 

Erigeron acris subsp. acris / Blue Fleabane, D Hurlach 8.6.2008
Fig. 1:  Erigeron acris subsp. acris / Blue Fleabane
D Hurlach 8.6.2008
Erigeron acris subsp. acris / Blue Fleabane, D Hurlach 8.6.2008
Fig. 2:  Erigeron acris subsp. acris / Blue Fleabane
D Hurlach 8.6.2008
Erigeron acris subsp. acris / Blue Fleabane, D Hurlach 8.6.2008
Fig. 3:  Erigeron acris subsp. acris / Blue Fleabane
D Hurlach 8.6.2008
Erigeron acris subsp. acris / Blue Fleabane, D Eisenberg 1.7.2006
Fig. 4:  Erigeron acris subsp. acris / Blue Fleabane
D Eisenberg 1.7.2006
Erigeron acris subsp. acris / Blue Fleabane, D Eisenberg 1.7.2006
Fig. 5:  Erigeron acris subsp. acris / Blue Fleabane
D Eisenberg 1.7.2006
Erigeron acris subsp. acris / Blue Fleabane, D Eisenberg 1.7.2006
Fig. 6:  Erigeron acris subsp. acris / Blue Fleabane
D Eisenberg 1.7.2006
Erigeron acris subsp. acris / Blue Fleabane, D Eisenberg 1.7.2006
Fig. 7:  Erigeron acris subsp. acris / Blue Fleabane
D Eisenberg 1.7.2006
Erigeron acris subsp. acris / Blue Fleabane, D Eisenberg 1.7.2006
Fig. 8:  Erigeron acris subsp. acris / Blue Fleabane
D Eisenberg 1.7.2006
Erigeron acris subsp. acris / Blue Fleabane, D Neuleiningen 3.7.2007
Fig. 9:  Erigeron acris subsp. acris / Blue Fleabane
D Neuleiningen 3.7.2007
Erigeron acris subsp. acris / Blue Fleabane, D Neuleiningen 3.7.2007
Fig. 10:  Erigeron acris subsp. acris / Blue Fleabane
D Neuleiningen 3.7.2007
Erigeron acris subsp. acris / Blue Fleabane, D Neuleiningen 3.7.2007
Fig. 11:  Erigeron acris subsp. acris / Blue Fleabane
D Neuleiningen 3.7.2007

 


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