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Ageratum conyzoides

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

BISH 73200Botany

Ageratum conyzoides

billygoat weed

As recorded: Ageratum conyzoides L.

Plantae › Tracheophyta › Magnoliopsida › Asterales › Asteraceae

Collected by: Caum, E.L.
Collector number: 14
Date: April 18, 1931
Locality: Lehua Rock
Island: Niʻihau
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

326 Bishop specimens of Ageratum conyzoides · collected 1851–2021Species page ›

Ageratum conyzoides observed alive in Hawaiʻi

This specimen was collected in 1931. Since 2000, iNaturalist observers have recorded 631 research-grade sightings in the wild, most recently on 2026-10-26.

Ageratum conyzoides observed 2026-10-26

2026-10-26

Aiea, HI, US

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

Ageratum conyzoides observed 2026-10-22

2026-10-22

Lihiwai St, Hilo, HI, US

(c) Asher Lewis, some rights reserved (CC BY-NC)

Ageratum conyzoides observed 2026-10-03

2026-10-03

Hilo, HI 96720, USA

(c) Craig Ontl, some rights reserved (CC BY-NC)

Ageratum conyzoides observed 2026-10-01

2026-10-01

Hawaii County, HI, USA

(c) Craig Ontl, some rights reserved (CC BY-NC)

Ageratum conyzoides observed 2026-09-13

2026-09-13

Hawaiian Paradise Park, HI, USA

(c) David Martin, some rights reserved (CC BY-NC)

Ageratum conyzoides observed 2026-09-10

2026-09-10

Maui County, US-HI, US

(c) simcartographer, some rights reserved (CC BY)

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

Cite this specimen

Ageratum conyzoides. BISH 73200. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956237461. Accessed via explore.bishopmuseum.org/specimens/bish/73200.

Record sources

GBIF occurrence 5956237461 ↗
Data license: CC_BY_NC_4_0
Last harvested October 26, 2026