Plectocephalus
(tree size 18)
Centaurea
(tree size 2400)
Starthistles
Russian knapweed
(tree size 7)
Hardheads
Mantisalca
(tree size 12)
Leuzea
(tree size 36)
Cyanus
(tree size 117)
Rhaponticoides
(tree size 41)
Centaurothamnus
(tree size 1)
Zoegea
(tree size 12)
Goniocaulon
(tree size 2)
Stizolophus
(tree size 6)
Klasea
(tree size 116)
Phonus
(tree size 5)
Psephellus
(tree size 148)
Myopordon
(tree size 4)
Nikitinia
(tree size 2)
Stemmacantha
(tree size 31)
Femeniasia
(tree size 2)
Karvandarina
(tree size 2)
Archiserratula
(tree size 1)
Palaeocyanus
(tree size 1)
Crocodilium
(tree size 11)
Ammocyanus
(tree size 1)
Autrania
(tree size 1)
Cynaroides
(tree size 1)
Erinacella
(tree size 1)
Paraphysis
(tree size 1)
Petrodavisia
(tree size 1)
Seridia
(tree size 24)
Haradjania
Chrysopappus
(tree size 1)
Grossheimia
(tree size 7)
Lamottea
(tree size 11)
Jacea
(tree size 106)