Annuals. Stem wings ± continuous, margins spinose, usually white and thickened. Leaf blades 40–200 × 20–80 mm, margins usually white and thickened. Involucres 12–18 × 8–12 mm, larger in fruit. Phyllaries ovate-lanceolate to lanceolate, glabrous. Cypsela/palea units ± obovate, 2.5–4 mm; pappi 0. 2n = 20.

Phenology: Flowering Jul.
Habitat: Disturbed sites
Elevation: 0–100 m

Distribution

• Generated Map
• Legacy Map

Introduced; N.C., Europe.

Discussion

Selected References

None.

Lower Taxa

None.