Achillea umbellata (original description)
Andryala lanata Sibth. & Sm. (original description)
Carduus glycacanthus Sibth. & Sm. (original description)
Centaurea armoracifolia Sibth. & Sm. (original description)
Centaurea cana Sibth. & Sm. (original description)
Centaurea drabifolia Sibth. & Sm. (original description)
Centaurea paniculata Sibth. & Sm. (original description)
Chondrilla ramosissima Sibth. & Sm. (original description)
Cineraria anomala Sibth. & Sm. (original description)
Cnicus palustris Sibth. & Sm. (original description)
Conyza limonifolia Sibth. & Sm. (original description)
Conyza pumila Sibth. & Sm. (original description)
Cotula complanata Sibth. & Sm. (original description)
Crepis fuliginosa Sibth. & Sm. (original description)
Crepis hyoseroides Sibth. & Sm. (original description)
Crepis incana Sibth. & Sm. (original description)
Crepis interrupta Sibth. & Sm. (original description)
Crepis multiflora Sibth. & Sm. (original description)
Crepis muricata Sibth. & Sm. (original description)
Crepis radicata Sibth. & Sm. (original description)
Cynara acaulis Sibth. & Sm. (original description)
Doronicum bellidiastrum Sibth. & Sm. (original description)
Echinops microcephalus Sibth. & Sm. (original description)
Hieracium bracteolatum Sibth. & Sm. (original description)
Hieracium crinitum Sibth. & Sm. accepted as Hieracium racemosum subsp. crinitum (Sm.) Rouy (original description)
Picris hieracioides Sibth. & Sm. (original description)
Santolina rigida Sibth. & Sm. (original description)
Senecio fruticulosus Sibth. & Sm. (original description)
Staehelina uniflosculosa Sm. (original description)
Tanacetum uliginosum Sibth. & Sm. (original description)
Xeranthemum cylindraceum Sm. (original description)