Flower profile
Rush skeletonweed
Chondrilla juncea
Rush skeletonweed is a wildflower that USDA PLANTS lists as introduced in the lower 48 states. In Idaho it's most often seen in bloom in July–October.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: Idaho
Quick look
Chondrilla juncea is a species of flowering plant in the family Asteraceae known by a number of common names, including rush skeletonweed, gum succory, devil's grass, and nakedweed. The plant is native to Europe, Asia, and North Africa, but it is known throughout most temperate regions of the world as an introduced species which is usually considered a noxious weed.
- It belongs to the Asteraceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) with a perennial life cycle. USDA PLANTS
- USDA PLANTS lists it as introduced in the lower 48 states and records it in 16 states. USDA PLANTS
- NatureServe lists it as not native to Idaho. NatureServe
- In Idaho, most iNaturalist sightings of it in flower come in July–October. iNaturalist
- iNaturalist has 462 research-grade sightings of it in Idaho, ranking #83 among the 109 flowers on our Idaho list. iNaturalist
State flower gift ideas
This one is a regulated invasive plant, so here are state flower gifts instead.
🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.
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State flower print
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Birth-flower necklace
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Wildflower seed favors
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Botanical tea towel
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Pressed-flower frame
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Flower-garden mug
When does it bloom?
In Idaho, most flowering sightings come in July–October.
Conservation status
- Federal (U.S. ESA)
- Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
- NatureServe global
- GNR Not yet ranked worldwide. NatureServe
- Idaho
- No list Idaho has no state law listing endangered or threatened plants, so we show NatureServe's Idaho ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in Idaho.
- Rare elsewhere
- No other U.S. state ranks it S1, S2, SH or SX.
Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.
Can you eat it?
None of the sources we checked (NC State Extension (no page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.
It isn't on the ASPCA plant list.
🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.
Where does it grow?
USDA PLANTS records rush skeletonweed in 16 states plus Washington, D.C.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
California, Delaware, Georgia, Idaho, Indiana, Maryland, Michigan, Montana, New Jersey, New York, Oregon, Pennsylvania, Virginia, Washington, West Virginia, Wyoming; District of Columbia.
Idaho counties with USDA records: Ada, Adams, Benewah, Blaine, Boise, Bonner, Bonneville, Boundary, Butte, Camas, Canyon, Clearwater, Custer, Elmore, Gem, Gooding, Idaho, Jerome, Kootenai, Latah, Lemhi, Lincoln, Madison, Nez Perce, Oneida, Owyhee, Payette, Power, Shoshone, Twin Falls, Valley, Washington.
More Idaho flowers
Sources
- USDA, NRCS. PLANTS Database, profile CHJU.
- iNaturalist, Chondrilla juncea: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Chondrilla juncea (lead quoted under CC BY-SA 4.0).
- Idaho: Idaho noxious weeds (IDAPA 02.06.09, Section 220).
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Chondrilla juncea (global and state ranks).
- Edibility and toxicity: no source found (marked "not well documented").
- Photo: Vijay Barve via iNaturalist · CC0 · resized.