Asteraceae
Spiny clotbur
Xanthium spinosum
- Family
- Asteraceae
- Genus
- Xanthium
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Common names
By language (13)
- Belarusian
- Дурнічнік ігольчаты
- Bulgarian
- Бодлив казашки бодил, Рогачица
- Chinese
- 刺苍耳
- Czech
- Řepeň trnitá
- Dutch
- Stekende stekelnoot
- English
- Spiny clotbur, Spiny cocklebur, Spiny cockleburr, Spiny burrweed, Spiny clotburr, Spiny cockelbur, Bathurst burr, Petite bardane
- Finnish
- Piikkisappiruoho
- French
- Lampourde épineuse, Petite bardane
- German
- Dornige Spitzklette
- Romanian
- Holeră
- Russian
- Дурнишник колючий
- Spanish
- Abrojos, arrancamoños, cardillos
- Welsh
- Penfachog yr Ariannin
Synonyms
- Acanthoxanthium ambrosioides (Hook. & Arn.) D.Löve
- Acanthoxanthium spinosum subsp. catharticum (Kunth) D.Löve
- Acanthoxanthium spinosum subsp. spinosum
- Xanthium ambrosioides Hook. & Arn.
- Xanthium armatum Humb. & Bonpl. ex Wallr.
- Xanthium medium Nossotovsky
- Xanthium multifidum Larrañaga
- Xanthium spinosum f. laciniatum Scheuerm. & Thell. ex Widder
- Xanthium spinosum f. praecocius Bitter ex Widder
- Xanthium spinosum f. spinosum
- Xanthium spinosum var. ambrosioides (Hook. & Arn.) Love & Dans.
- Xanthium spinosum var. brachyacanthum DC.
- Xanthium spinosum var. canescens Costa
- Xanthium spinosum var. heterocephalum Widder
- Xanthium spinosum var. inerme Bel
- Xanthium spinosum var. spinosum
- Xanthium spinosum var. synacanthum Widder
- Xanthium xanthocarpon Wallr.
Flowers
- In flower
- February to April, June to October (from 72 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual
- In the US and Canada
- Canada: introduced, Lower 48 states: introduced
Photos
FlowerPhoto: Bruce Calvert, CC BY 4.0, from iNaturalist 
FlowerPhoto: M. B., CC0, from iNaturalist 
FlowerPhoto: Tim Park, CC BY 4.0, from iNaturalist 
FlowerPhoto: Henry de Lange, CC BY 4.0, from iNaturalist 
Photo: Xemenendura, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Vladimír Fuka, CC BY 4.0, from iNaturalist 
Photo: איתן פרמן, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Antonio W. Salas, CC BY 4.0, from iNaturalist 
Photo: איתן פרמן, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Franz Xaver, CC BY-SA 3.0, from Wikimedia Commons 
Photo: zebedeugalinha, CC BY 4.0, from iNaturalist 
Photo: Oceancetaceen - Alice Chodura, CC BY-SA 3.0, from Wikimedia Commons
More in Xanthium
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.