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Rush Skeletonweed (1B)

(Chondrilla juncea)


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Rush Skeletonweed

(1B, limited presence in Montana)

(Chondrilla juncea)

Quick ID
  • Many branches with few or no leaves, “skeleton-like” appearance
  • Downward pointing hairs at base of stem
  • Plant parts exude a milky latex when broken
  • Up to 4’ tall
rush skeletonweed location map.png

Map Courtesy of Montana Natural Heritage Program, Rush Skeletonweed – Low Suitability: 12% of Montana, Moderate: 1%, Optimal: 1%. Larger image.

rush skeletonweed plant
Rush Skeletonweed Plant

Video Information


Weed Images

Rush Skeletonweed plant
Rush Skeletonweed Rosette
Rush Skeletonweed Flower
Rush Skeletonweed Leaf
Rush Skeletonweed Seed
Rush Skeletonweed Stem
Rush Skeletonweed Root - Photo by Utah State University , Bugwood.org
Rush Skeletonweed Invading - Photo by Utah State University , Bugwood.org

Weed Specifications

Weed Info
Type Information
Toxicity Not toxic, but can reduce forage production, and is problematic in wheat and grain crops in other countries
Best Management Practices Hand pulling multiple times per year for several years, competitive and healthy plant community, grazing, herbicide, and biocontrol is variably effective in other states *See management plan below
Habitat Disturbed areas with well-drained soil
Root Deep taproot and reproduces with adventitious buds
Leaves Lobes of basal leaves point backwards toward the leaf base, upper leaves are sparse or nonexistent
Lifespan Perennial
Similar Looking Plants Dandelions at rosette stage, native skeletonweeds, tumble mustard, chicory, prickly lettuce
Important Information Each plant can produce thousands of seeds and the seeds can blow miles from the plant, fire encourages population spread, plants can spread from small root fragments and tillage is also not encouraged

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