Über ein neues kumulen aus erigeron canadense L. (1)

Volatile constituents of essential oils isolated at different growth stages from threeConyza species growing in Greece

“…5 The main component of the oils of C. canadensis was limonene (50.0% CC1, 57.3% CC2 and 70.3% CC3), as reported previously. [15][16][17][18] The level of monoterpenes increased from vegetative to flowering-fruiting stage (73.79-91.26%). Acetylenes varied during the phenological stages, being more significant at flowering stage (14.98% CC2).…”

“…9 There are a number of literature reports on phytochemical analyses of this genus. 3,6,7,[10][11][12][13][14][15] The essential oils of these three Conyza species have been the subject of previous studies. 5,8,9,[16][17][18] Despite the existence of specific morphological characteristics, distinction among the three species shows several difficulties, mainly due to the existence of hybrids.…”