Bernice Puahi Bishop Museum · CC BY-NC · GBIF · full resolution
Microsorum grossum
Musk Fern
As recorded: Microsorum grossum (Langsd. & Fisch.) S.B.Andrews
Plantae › Tracheophyta › Polypodiopsida › Polypodiales › Polypodiaceae
- Collected by
- Newell, C.L.
- Collector number
- 137
- Date
- July 20, 1966
- Locality
- Located down Chain or Craters Road about 28.5 miles toward Kalapana from intersection with Crater Rim Road; or 0.2 miles before Queens Bath. Plant was about .25 miles up the Royal Estates Road, not far from HVNP boundary. (plot 27)
- Island
- Hawaiʻi Island
- Region
- Hawaii, United States
- Elevation
- 50 m
- Identified by
- (Nom. rev.) Thomas, M.K.
- Record type
- Preserved specimen
Collected the same day
On July 20, 1966, Newell, C.L. also collected 24+ other specimens.
Microsorum grossum observed alive in Hawaiʻi
This specimen was collected in 1966. Since 2000, iNaturalist observers have recorded 2,093 research-grade sightings in the wild, most recently on 2026-10-24.

2026-10-24
Hā'ena State Park, Princeville, HI, US
(c) Paula Dreeszen, some rights reserved (CC BY)

2026-10-19
Halawa, HI, USA
(c) Sam Buswell, some rights reserved (CC BY-NC)

2026-10-18
Oʻahu, Kāneʻohe, HI, US
(c) melidesomma, some rights reserved (CC BY-NC)

2026-10-16
Wailuku, HI, US
(c) Makaela K., some rights reserved (CC BY-NC)

2026-10-16
Kihei
(c) gecurry, some rights reserved (CC BY-NC)

2026-10-14
Maunawili, HI 96734, USA
(c) Sam Buswell, some rights reserved (CC BY-NC)
Observations and photos from iNaturalist, shown only when openly licensed.
Cite this specimen
Microsorum grossum. BISH 20663. Bernice Pauahi Bishop Museum, Honolulu. GBIF occurrence 5956649704. Accessed via explore.bishopmuseum.org/specimens/bish/20663.
Record sources
- GBIF occurrence 5956649704 ↗
- Data license: CC_BY_NC_4_0
- Last harvested October 26, 2026
