| Section | Family | Scientific Name | (Most Prevalent) Common Name | RAB Flora Synonym | NatureServe Synonym | Author | State Rank | Global Rank | State Status | US Status |
|---|---|---|---|---|---|---|---|---|---|---|
| 6 | Asteraceae | Centaurea benedicta
BONAP Images | Blessed Thistle | Cnicus benedictus | (L.) L. | SE | GNR | |||
| 6 | Asteraceae | Centaurea jacea
BONAP Images | Brown Knapweed | not in RAB | L. | SE | GNR | |||
| 6 | Asteraceae | Centaurea nigra
BONAP Images | Black Knapweed | not in RAB | L. | SE | GNR | |||
| 6 | Asteraceae | Centaurea nigrescens
BONAP Images | Tyrol Knapweed | not in RAB | Willdenow | SE | GNR | |||
| 6 | Asteraceae | Centaurea solstitialis
BONAP Images | Yellow Star-thistle | L. | SE | GNR | ||||
| 6 | Asteraceae | Centaurea stoebe
BONAP Images | Spotted Knapweed | Centaurea maculosa | Centaurea biebersteinii | L. | SE | GNR | ||
| 6 | Asteraceae | Centaurea x moncktonii BONAP Images | Meadow Knapweed | not in RAB | HYB | GNA |