Erigeron
Jahn, R. & Schönfelder, P. 1995: Exkursionsflora für KretaStace, C. 2010: New flora of the British Isles, ed. 3 but modified and used names differing
| 1 | Phyllaries yellowish-green, glabrous or nearly so; capitula 3-5 mm wide at fruiting |
| 1' | Phyllaries greyish-green, more or less hairy; capitula 5-11 m wide at fruiting |
| 2 | Inflorescence pyramidal; phyllaries not or minutely red-tipped; capitula 5-8 mm wide at fruiting; leaves dull green |
| 2' | Inflorescence with long lateral branches often overtopping terminal branches, subcorymbose; phyllaries often conspicuously red-tipped; capitula 7-11 mm wide ar fruiting; leaves greyish-green |
