# common cocklebur

*Xanthium orientale*

The hooked burrs of the cocklebur served as the direct biological inspiration for the invention of Velcro by Swiss engineer George de Mestral.

- **Taxonomy:** Plantae › Tracheophyta › Magnoliopsida › Asterales › Asteraceae › Xanthium
- **IUCN Red List status:** Least Concern
- **Population trend:** increasing
- **Biome:** grassland
- **Habitat:** Disturbed fields, agricultural lands, riparian zones, roadsides, and lake shores.
- **Diet:** Photosynthetic (sunlight, water, carbon dioxide, and soil minerals).
- **Range:** North America, Europe, Asia, South America, Australia
- **Size:** 50 cm to 150 cm (20 to 60 inches) tall
- **Lifespan:** 1 year (annual)
- **Active:** diurnal
- **Threats:** Herbicide use, agricultural tilling, and competitive invasive species management.
- **Safe to approach?:** Defensive. The mature plant is safe to touch, but its hooked burrs cling aggressively to clothing and fur, causing severe tangles and mild skin irritation. Seedlings and seeds are highly toxic if ingested. If skin is scratched by burrs, wash the area with soap and water; if ingested by humans or livestock, seek immediate medical attention.

## About

Xanthium orientale is a species of annual plant of the daisy family Asteraceae.

## Sources

- Plate: https://gaia-dex.com/species/2558ec33-e72d-400c-bdfc-a0c4215433b5
- iNaturalist: https://www.inaturalist.org/taxa/506262
- Wikipedia: https://en.wikipedia.org/wiki/Xanthium orientale
- Conservation status: IUCN Red List category, as recorded by Gaia-Dex
- Photo: https://inaturalist-open-data.s3.amazonaws.com/photos/4871599/medium.jpeg (Fabien Piednoir, CC-BY-SA, via iNaturalist)

Habitat, diet, size and similar notes are AI-written summaries; check them against the linked sources before relying on them.