Ambrosia confertiflora
Weakleaf Burr Ragweed
43
Bishop specimens
0
Type specimens
1851
First collected
2001
Last collected
No recent record
Last seen alive in Hawaiʻi
In the Library
Bishop Museum publications whose pages name Ambrosia confertiflora, most mentions first.
2025
Imada, C.T., Faccenda, K., Thomas, M.K., Gallaher, T., Oppenhemier, H., Kennedy, B. & Kalei, A. (eds.) Hawaiian native & naturalized vascular plants checklist (2025 update). 780 pp. [published online 6 November 2025]· Contribution to the Hawaii Biological Survey · 2 pages
Where Bishop collected it
8 mapped specimens. Localities of endangered species are shown approximately.
Two centuries of collecting
1850s2000s
The oldest Bishop specimen was collected in 1851 by Rémy, J. (Oʻahu).
From the collection
