Cirsium horridulum
yellow thistle

Cirsium horridulum
Cirsium horridulum
Photo courtesy Renee Brecht
Britton & Brown
Botanical name: Cirsium horridulum
Common name: yellow thistle
Synonomy: Carduus spinosissius Walt.
Cnicus horridulus Barton
Cirsium horridulum Knieskern
Cnicus spinosissimus Britton
Group: dicot
Family: Asteraceae
Growth type: forb/herb
Duration: annual; biennial
Origin: native
Plant height: 1 - 3'
Foliage: base of flower head with erect, spiny leaves
Flower: yellow, rarely purple
Flowering time: mid May to late June
Habitat: fields, meadows, borders of salt marshes
Range in New Jersey: statewide
Heritage ranking, if any: n/a
Distribution: Cirsium horridulum