Acarna casabonae Hill. accepted as Ptilostemon casabonae (L.) Greuter (original description)
Acarna leucographa Hill accepted as Tyrimnus leucographus (L.) Cass. (original description)
Acarna onopyxe Hill accepted as Carduus onopyxos Hill (original description)
Ascalea lanceata Hill accepted as Cirsium vulgare (Savi) Ten. (original description)
Ascalea nutans (L.) Hill accepted as Carduus nutans subsp. platypus (Lange) Greuter (original description)
Aster inaequalis Hill (original description)
Aster purpureo-caerulescens Hill (original description)
Bardana arctium Hill accepted as Arctium lappa L. (original description)
Bardana minor Hill accepted as Arctium minus (Hill) Bernh. (original description)
Behen jacea Hill accepted as Centaurea jacea L. (original description)
Behen noveboracense (L.) Hill accepted as Vernonia noveboracensis (L.) Michx. (original description)
Behen praealtum (L.) Hill accepted as Vernonia noveboracensis (L.) Michx. (original description)
Bubonium arborescens (L.) Hill accepted as Borrichia arborescens (L.) DC. (original description)
Bubonium maritimum (L.) Hill accepted as Pallenis maritima (L.) Greuter (original description)
Calcitrapa calcitrapa (L.) Hill accepted as Centaurea calcitrapa L. (original description)
Calcitrapa calcitrapoides Hill. (original description)
Carthamus laevis Hill accepted as Stokesia laevis (Hill) Greene (original description)
Cirsium cyanoides Hill accepted as Jurinea cyanoides (L.) Rchb. (original description)
Cirsium dissectum (L.) Hill (original description)
Cirsium galactites Hill accepted as Galactites tomentosa Moench (original description)
Cirsium helenioides (L.) Hill (original description)
Cirsium heterophyllum (L.) Hill (original description)
Cirsium monspessulanum Hill. (original description)
Cirsium salamanticum Hill accepted as Mantisalca salmantica (L.) Briq. & Cavill. (original description)
Cirsium serratuloides (L.) Hill (original description)
Colymbada centauroides (L.) Hill accepted as Centaurea centauroides L. (original description)
Colymbada sicula Hill accepted as Centaurea sicula L. (original description)
Crepula centauroides (L.) Hill accepted as Centaurea centauroides L. (original description)
Crepula cernua Hill (original description)
Crocodilium crocodylium Hill accepted as Centaurea crocodylium L. (original description)
Crocodilium peregrinum Hill accepted as Centaurea peregrina L. (original description)
Cyanus cyanus Hill accepted as Cyanus segetum Hill (original description)
Cyanus montanus (L.) Hill (original description)
Eriopha Hill accepted as Centaurea L. (original description)
Eriopha eriopha Hill accepted as Centaurea eriophora L. (original description)
Hierachium Hill (original description)
Hierachium laevigatum Hill (original description)
Ixine casabonae Hill (original description)
Ixine tuberosa Hill (original description)
Lacinaria squarrosa (L.) Hill accepted as Liatris squarrosa (L.) Willd. (original description)
Laciniaria Hill (original description)
Lepia multiflora (L.) Hill (original description)
Lepia pauciflora (L.) Hill (original description)
Mariana mariana (L.) Hill accepted as Silybum marianum (L.) Gaertn. (original description)
Meridiana tesselata Hill accepted as Gazania rigens var. rigens (L.) Gaertn. (original description)
Phonus lanatus Hill (original description)
Polyacantha crispus Hill. (original description)
Polycantha acanthoides Hill (original description)
Polycantha palustris Hill (original description)
Psora orientalis Hill (original description)
Pternix deflorata Hill (original description)
Pycnocomus sonchifolius Hill (original description)
Rhapontica rhapontica Hill (original description)
Sagmen scabiosa Hill (original description)
Sagmen sempervirens Hill (original description)
Seneico Hill (original description)
Silphium latifolium Hill (original description)
Solidago foliosa Hill (original description)
Solidago gracilis Hill (original description)
Solidago varia Hill (original description)
Solstitiaria melitensis Hill (original description)
Solstitiaria solstitialis Hill. (original description)
Staebe cineraria Hill (original description)
Staebe paniculata Hill (original description)
Staebe ragusina Hill (original description)
Tetralyx Hill (original description)
Tragopogon glaber Hill. (original description)
Verbesina populifolia Hill (original description)