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Centaurea cyanus L.
+ Cornflower SE1 R
Centaurea jacea L.
+N Brown knapweed SE5 BT
Centaurea nigrescens Willd. ssp. nigrescens
+ Blackish knapweed SE4 CP
[C. vochinensis Bernh.]
Chrysanthemum leucanthemum L.
+ Ox-eye daisy SE5 CP HV RC BT R
Cichorium intybus L.
+ Chicory SE5 CP RC BT R
Cirsium arvense (L.) Scop.
+ Canada thistle SE5 CP RC BT R
Cirsium vulgare (Savi) Ten.
+ Bull thistle SE5 CP BT R
Conyza canadensis (L.) Cronquist
Horseweed S5 BT R W
Crepis tectorum L.
+ Narrow-leaved hawk’s beard SE5 W
Erechtites hieracifolia (L.) Raf. ex DC.
Pilewort S5 CP HV
Erigeron annuus (L.) Pers.
Daisy fleabane S5 CP HV RC BT R
Erigeron philadelphicus L. ssp. philadelphicus
Philadelphia fleabane S5 CP RC R
Erigeron pulchellus Michx.
Robin’s fleabane S5 CP RC R
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Erigeron strigosus Muhlenb. ex Willd.
Daisy fleabane S5 CP RC BT R
Eupatorium altissimum L.
+N Tall snakeroot S1 CP
Adventive along the railway corridor, first collected in 1983.
Eupatorium maculatum L. ssp. maculatum
Spotted Joe-pye-weed S5 CP
Eupatorium perfoliatum L.
Boneset S5 CP
Eupatorium purpureum L. var. purpureum
H Sweet Joe-pye-weed S3 RC
Eupatorium rugosum Houtt.
White snakeroot S5 CP HV RC
Euthamia graminifolia (L.) Nutt.
Grass-leaved goldenrod S5 CP BT R
Gaillardia aristata Pursh
+ Blanket-flower SE1 R
[All specimens of G. pulchella Foug. have been revised to G. aristata.]
Galinsoga parviflora Cav.
+N Small-flowered Galinsoga SE? CP
First collected in 1998.
Galinsoga quadriradiata Rúiz, Lopez & Pavón
+ Hairy Galinsoga SE5 CP R W
[G. ciliata Blake]
Gnaphalium obtusifolium L.
Fragrant cudweed S5 CP
[Including all specimens previously identified as G. macounii Greene]
Gnaphalium uliginosum L.
+ Low cudweed SE5 CP
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