Atractylis gedeonii Sennen accepted as Atractylis humilis L. (original description)
Carduus cadevallii Sennen (original description)
Centaurea augustinii Sennen (original description)
Centaurea barcinonensis Sennen (original description)
Centaurea basilei Sennen (original description)
Centaurea bergadensis Sennen (original description)
Centaurea dufourii Sennen (original description)
Centaurea jonasii Sennen & Pau (original description)
Centaurea vernui Sennen & Pau (original description)
Centaurea victorii Sennen (original description)
Cirsium viciosoi Sennen (original description)
Conyza daveauana Sennen accepted as Erigeron daveauanus (Sennen) Greuter (original description)
Hieracium alpestre Arv.-Touv. (original description)
Hieracium capillatum Arv.-Touv. accepted as Pilosella tardans (Peter) Soják (original description)
Hieracium cerdanum Arv.-Touv. (original description)
Hieracium coderianum Arv.-Touv. (original description)
Hieracium eriodermum Arv.-Touv. (original description)
Hieracium erosulum Arv.-Touv. (original description)
Hieracium galacteum Arv.-Touv. (original description)
Hieracium gouanii Arv.-Touv. (original description)
Hieracium heteradenum Arv.-Touv. (original description)
Hieracium leptocerinthe Arv.-Touv. & Sennen (original description)
Hieracium leucodermum Arv.-Touv. & Gaut. accepted as Hieracium candidum Scheele (original description)
Hieracium periplecum Arv.-Touv. (original description)
Hieracium plecoides Arv.-Touv. accepted as Hieracium sonchoides subsp. plecoides (Arv.-Touv.) Zahn (original description)
Hieracium prionocerinthe Arv.-Touv. (original description)
Hieracium segreanum Arv.-Touv. (original description)
Hieracium setulosum Arv.-Touv. (original description)
Hieracium terianum Arv.-Touv. & Sennen accepted as Hieracium bicolor subsp. terianum (Arv.-Touv. & Sennen) Zahn (original description)
Onopordum turolense Sennen (original description)
Phagnalon catalaunicum Sennen (original description)
Taraxacum paui Sennen (original description)
Xanthium basilei Sennen (original description)