Megathyrsus maximus
Guinea Grass
As recorded: Urochloa maxima (Jacq.) R.D.Webster
Plantae › Tracheophyta › Liliopsida › Poales › Poaceae
- Collected by
- Ewart III, G.R.
- Collector number
- 321
- Date
- February 16, 1934
- Locality
- Parker Ranch, Kaala
- Island
- Hawaiʻi Island
- Region
- Hawaii, United States
- Elevation
- 823 m
- Identified by
- (Nom. rev.) Imada, C.
- Record type
- Preserved specimen
Collected the same day
On February 16, 1934, Ewart III, G.R. also collected 7 other specimens.
Megathyrsus maximus observed alive in Hawaiʻi
This specimen was collected in 1934. Since 2000, iNaturalist observers have recorded 2,191 research-grade sightings in the wild, most recently on 2026-10-24.
2026-10-24
West Loch Estate, HI 96706, USA
no rights reserved
2026-10-24
Hawi, HI, USA
(c) daleball, some rights reserved (CC BY-NC)
2026-10-23
Oʻahu, Honolulu, HI, US
(c) birdbirdbird, some rights reserved (CC BY-NC)
2026-10-21
Haleakalā National Park, Hana, HI, US
(c) ka_y_ak, some rights reserved (CC BY-NC)
2026-10-17
Kauaʻi, Hā’ena, HI, US
(c) Phillip, some rights reserved (CC BY-NC)
2026-10-16
Kauai County, US-HI, US
(c) dvanlare, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Megathyrsus maximus. BISH 119767. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956586533. Accessed via explore.bishopmuseum.org/specimens/bish/119767.
Record sources
- GBIF occurrence 5956586533 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026