Sand dunes dominate the landscape in the North Algodones Dunes Wilderness Area.
Motorcycle Rider at Fort Sage OHV Area Wild Horse Mtn. Bike Rider on the Bizz Johnson Trail Eagle Lake at Rocky Point Sage Grouse
BLM>California>Eagle Lake>Rush Skeletonweed
Print Page

Noxious Weed!Rush Skeletonweed (Chondrilla juncea)
Sunflower Family   (Asteraceae )


Noxious Weed: Rush skeletonweed
University of Idaho


Description:  A many branched biennial or perennial, 1 to 4 feet, with milky sap. Lower 4 to 6 inches of stem have downward bent, coarse reddish hairs. Leaves form a basal rosette, sharply toothed, that wither as stems develop. Stem leaves inconspicuous, narrow and entire. Flowers scattered on branches, less than 1 inch across, with 7 to 15 yellow, strap-shaped petals with 5 distinct teeth at the end. Seeds pale brown to nearly black, about 1/8 inch long, several-ribbed, smooth below with tiny scaly projections above, terminated by numerous soft white bristles.

Habitat: Native to southern Europe. It generally grows in well-drained, light-textured soils along roadsides, rangelands, grain fields, pastures and vineyards. Easily invades disturbed sites. Extensive, deep root system make Rush Skeletonweed difficult to control.

Distribution: Rush Skeletonweed is found primarily in Sacramento. However, there have been plants found mostly along roadways in Plumas, Sierra, Tehama, and Shasta counties.

Flowering Period: July to September.


Next Plant

Glossary of
Plant Terms