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Xanthium strumarium

Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution

BISH 448187Botany

Xanthium strumarium

rough cocklebur

As recorded: Xanthium strumarium L.

Plantae › Tracheophyta › Magnoliopsida › Asterales › Asteraceae

Collected by: Christophersen, E.; Wilder, G.P.; Hume, E.P.Erling Christophersen →E.P. Hume →Gerrit Parmele Wilder →
Collector number: 1442
Date: January 22, 1931
Locality: Diamond Head crater
Island: Oʻahu
Region: Hawaii, United States
Identified by: Herbst, D.R.; Sohmer, S.H.; Wagner, W.L.Derral R. Herbst →Seymour H. Sohmer →Warren L. Wagner Jr. →
Record type: Preserved specimen

73 Bishop specimens of Xanthium strumarium · collected 1886–2023Species page ›

Xanthium strumarium observed alive in Hawaiʻi

This specimen was collected in 1931. Since 2000, iNaturalist observers have recorded 69 research-grade sightings in the wild, most recently on 2026-08-21.

Xanthium strumarium observed 2026-08-21

2026-08-21

Kahaone Loop, Waialua, HI, US

(c) hi_ocean, some rights reserved (CC BY-NC)

Xanthium strumarium observed 2026-08-19

2026-08-19

Kailua Kona, HI, US

(c) Jason Flor Flores, some rights reserved (CC BY-NC)

Xanthium strumarium observed 2026-07-07

2026-07-07

Kahaluʻu, HI, US

(c) Karen Howorth, some rights reserved (CC BY-NC)

Xanthium strumarium observed 2026-05-01

2026-05-01

Honolulu County, HI, USA

(c) Kevin Faccenda, some rights reserved (CC BY)

Xanthium strumarium observed 2026-02-27

2026-02-27

Waianae, HI 96792, USA

no rights reserved

Xanthium strumarium observed 2026-02-23

2026-02-23

Waialua, HI 96791, USA

no rights reserved

Observations and photos from iNaturalist, shown only when openly licensed.

Cite this specimen

Xanthium strumarium. BISH 448187. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956312100. Accessed via explore.bishopmuseum.org/specimens/bish/448187.

Record sources

GBIF occurrence 5956312100 ↗
Data license: CC_BY_NC_4_0
Last harvested October 26, 2026