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Adiantum hispidulum

Sw. (1801)

This name is accepted

Kingdom: Viridiplantae Phylum: Pteridophyta Class/Clade: Polypodiopsida Order: Polypodiales Family: Pteridaceae Genus: Adiantum

five-finger maidenhair, rosy maidenhair, rough maidenhair, rough maidenhair fern

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Description

Key Characters:

Growth Form:

Stems:

Roots:

Leaves:

Sori:

Gametophyte:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Naturalized
O'ahu Naturalized
Molokai Naturalized
Lana'i Naturalized
Kaho'olawe Not in flora
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents

Wind

Vegetative Reproduction

Bibliography

Name Published In: J. Bot. (Schrader) 1800(2): 82 (1801)

Other References

Palmer 2003:43 (K, O, Mo, L, M, Ka, H); Staples & Herbst 2005:47 (KEY), 49 (DESCR); Faccenda, Arthur, et al. 2025:206 (KEY); Note: no BISH spms. from Ka?, as of Mar 2025

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Adiantum hispidulum West Maui, Paunau Ditch Trail side of bank, dry forest Preserved_Specimen Palmer, M.R. 89 Maui BISH 1955-12-21
2 Adiantum hispidulum W Maui, Lihau Montane Ohia Mixed Wet Forest. With Metrosideros, Clermontia arborescens, Cibotium, Cheirodendron, Hedyotis, Broussaisia, Sadleria pallida, Labordia hedyosmifolia, Stenogyne and native ferns Preserved_Specimen Welton, P. 1046 Maui BISH 1991-07-13
3 Adiantum hispidulum Pauoa Valley on rocks Preserved_Specimen Topping, D.L. 2634 Oahu BISH 1923-04-29
4 Adiantum hispidulum National Park, Kau, along trail from Hinlina Pali shelter to Kipuka Pepeiou small wet cave, shady Preserved_Specimen Herat, T. 795 Hawaii BISH 1975-06-27
5 Adiantum hispidulum Maunalei Gulch dark ledges in pukui forest Preserved_Specimen Degener, O. 28667 Lanai BISH 1963-08-17
6 Adiantum hispidulum W slope of Pololu Valley ledge Preserved_Specimen Degener, O. 21887 Hawaii BISH 1952-02-19
7 Adiantum hispidulum Waipio Gulch top of valley, shaded slope, with A. capillus venetis Preserved_Specimen 14 pendulous Russ, G.W. 68 Hawaii BISH 1927-07-31
8 Adiantum hispidulum Tantalus Dr., vicinity of arboretum trail Shady roadside Preserved_Specimen Local patch, several meters wide, not observed in other locations nearby Faccenda, K. 1854 Oahu BISH 2021-05-22
9 Adiantum hispidulum Waimea, on Parker Ranch lands above Honokaa In grass around rocks unbedded in soil in ravines. Preserved_Specimen Gregarious. Brodie, A. Hawaii BISH
10 Adiantum hispidulum Paunau Ditch Trail rock roof and walls of tunnel with Adiantum capilus-veneris Preserved_Specimen fronds to 2 dm long Woolford, H.A. 87 Maui BISH 1955-12-21
11 Adiantum hispidulum Iao Valley, Needle lookout stream bed, moist, shady Preserved_Specimen 3-8 long ferns Vitale, S. 5 Maui BISH 1983-03-05
12 Adiantum hispidulum Kamoku, Kaiholena Gulch near bottom Preserved_Specimen to 12 ferns Palumbo, D. 125 Lanai BISH 1983-06-03
13 Adiantum hispidulum Maunalei Gulch kukui forest Preserved_Specimen Degener, O. 24273 Lanai BISH 1957-08-16
14 Adiantum hispidulum Pololu Valley, lower Kahala Ditch Trail under Pandanus trees, with Passiflora, Psidium; rather steep slopes along trail Preserved_Specimen Carlquist, S. 1896 Hawaii BISH 1966-06-28
15 Adiantum hispidulum Hamakua Ditch Trail Stone heaps - Dry pasture Preserved_Specimen Topping, D.L. 3632 Hawaii BISH 1932-10-13
16 Adiantum hispidulum Palawai gulch, Southern Waianae Mountains. Growing on cliff face in disturbed mesic forest dominated by Schinus terebinthifolius, Psidium cattleianum, and Toona ciliata. Also growing with Asplenium macraei, Planchonella sandwicensis, Claoxylon sandwicensis, Urera kaalae, and others. Preserved_Specimen Thomas, M.K. 330 Oahu BISH 2022-04-06
17 Adiantum hispidulum Makaha Valley, Waianae Mts dry dirt bark by trail in Psidium guajava forest Preserved_Specimen St.John, H. 25124 Oahu BISH 1953-05-03
18 Adiantum hispidulum makai of Papaloa, Capt. Cook, Kona sunny dry rocks in cattle range Preserved_Specimen Degener, O. 20253 Hawaii BISH 1949-08-16
19 Adiantum hispidulum 2771 Booth Rd, Pauoa Untended slope in deep shade Preserved_Specimen Naturalized in yard Lau, J. 2103 Oahu BISH 1986-03-09
20 Adiantum hispidulum Canyon Trail, Waimea Canyon State Park Mesic koa forest with streams dominated by invasive ginger. Preserved_Specimen Terrestrial large colony S. Fawcett 269 Kauai BISH 2015-05-18
21 Adiantum hispidulum Eazt Maui, Hana District, Kahikinui, south of Kahua, west of upper Kamaole drainage basin. Vegetation: Metrosideros, Acacia, Dodonaea, Leptechophylla, Myrsine, Ilex, Coprosma, Dicranopteris, Diplazium, Cibotium, Smilax, Astelia, Dryopteris, Sadleria, Pteris, Coniogramme, Cyrtomium, Peperomia, Lobellia, Melicope, Carex, Pipturus, Urera, Perrottetia, Odontosoria, Asplenium, Deschampsia, Hypolepis, Clerontia, Morelotia, Pennisetum, Holcus, Anthoxanthum, Senecio, Rubus, Axonopus, Verbena, Adiantum. Preserved_Specimen Naturalized terrestrial fern. The prevailing form here, which seems much larger than other sites where this is a common ground cover. Oppenheimer, H.L. 21608 Maui BISH 2016-02-04
22 Adiantum hispidulum West Maui, Waiehu, SE base of Mt. Alani densely covering slopes in pasture Preserved_Specimen Degener, O. 19573 Maui BISH 1949-05-15
23 Adiantum hispidulum Manuwai, many locations throughout gulch bottom and along lower to mid-slopes. Associated canopy: Diospyros spp., Toona ciliata. Understory: Blechnum appendiculatum. Preserved_Specimen Small naturalized fern; various size classes present. Pinnae appear unusually large for Adiantum hispidulum. The more typical form of A. hispidulum with smaller pinnae was growing adjacent to this larger form, which was observed in several locations. There did not appear to be a gradation in size between the two forms. Akamine, M. 495 Oahu BISH 2018-04-30
24 Adiantum hispidulum Honolulu, Foster Gardens potted Preserved_Specimen fern Potter, C. Oahu BISH 1960-01-18
25 Adiantum hispidulum Kukuihaele wet pasture Preserved_Specimen Ewart III, G.R. 339 Hawaii BISH 1934-03-07
26 Adiantum hispidulum Manuka NAR, Transect 5, E from Kaulanamauna near old logging road Pioneer veg on lava and Metrosideros montane mesic forest with Cibotium, Sadleria, Myrsine, Dodonaea, Vaccinium, Styphelia, Coprosma Preserved_Specimen Perlman, S. 10721 Hawaii BISH 1969-04-13
27 Adiantum hispidulum Palikea Gulc shaded end of road cut Preserved_Specimen Takeuchi, W.N. 689 Oahu BISH 1984-02-20
28 Adiantum hispidulum Pauoa Valley rocks Preserved_Specimen Topping, D.L. 2634 Oahu BISH 1923-04-29
29 Adiantum hispidulum Hawaii Volcanoes National Park, Hawaii County, US-HI, US HUMAN_OBSERVATION 1441951053 Maui HAPI 12/31/1997
30 Adiantum hispidulum Waianae Mts., Peacock Flats Access Road. Woodland edge, full shade in morning, partial sun in afternoon, beneath Schinus terebinthifolius canopy. Preserved_Specimen Hernandez, J.P. 36 Oahu BISH 2006-02-18
31 Adiantum hispidulum Pauoa Valley Preserved_Specimen Topping, D.L. 2823 Oahu BISH 1924-08-30
32 Adiantum hispidulum Mt. Tantalus Preserved_Specimen Topping, D.L. 2662 Oahu BISH 1923-06-03
33 Adiantum hispidulum Milolii Valley. Preserved_Specimen One plant seen along a goat path and it was not browsed. Corn, C. Kauai BISH 1984-07-16
34 Adiantum hispidulum Pauoa Valley Preserved_Specimen Caum, E.L. Oahu BISH 1934-03-15
35 Adiantum hispidulum West Maui, N.E. Coast; near Kahakuloa 21.0N 156.5W Preserved_Specimen Krajina, V.J. 620422005 Maui BISH 1962-04-22
36 Adiantum hispidulum E slope of Waipio Valley road cuts and ledges Preserved_Specimen Degener, O. 21806 Hawaii BISH 1952-02-07
37 Adiantum hispidulum Hamakua District, Waipio Valley, ca. 2 miles into the valley Common roadside fern in disturbed secondary forest. Preserved_Specimen Imada, C. 9939 Hawaii BISH 1999-06-19
38 Adiantum hispidulum West Maui; above south tributary of Kahana Iki Stream Specimen was situated terrestrially and shaded beneath 5-6 meter canopy within Ohia/Lama Mesic Forest. Associated vegetation: Psydrax odorata, Psychotria mariniana, Pleomele auwahiensis, Schinus terebinthifolius, Alyxia oliviformis, Cocculus trilobus, Tectaria cicutaria ssp. gaudichaudii, Blechnum occidentale. Preserved_Specimen Meidell, J.S. 269 Maui BISH 1997-12-03
39 Adiantum hispidulum Kawaihae, DHHL Survey, Supp. Sta. M; Keawewai gulch Preserved_Specimen Perlman, S. 10285 Hawaii BISH 1989-08-04
40 Adiantum hispidulum Waipio Trail, Hamakua shaded rocky banks with Osteomeles and guava Preserved_Specimen St.John, H. 23991 Hawaii BISH 1950-01-01
41 Adiantum hispidulum East slope of Waipio Valley Preserved_Specimen Degener, O. 21806 Hawaii BISH 1952-02-07
42 Adiantum hispidulum Mt. Tantalus Preserved_Specimen Topping, D.L. 2662 Oahu BISH 1923-06-03
43 Adiantum hispidulum ~4 miles up Haleakala Crater Road Preserved_Specimen Tanabe, L. 54 Maui BISH 1961-02-02
44 Adiantum hispidulum East Maui, Makawao District, Kula Forest Reserve, on way to Polipoli State Park Along roadside. Preserved_Specimen Fern. Oppenheimer, H.L. 89801 Maui BISH 1999-08-22
45 Adiantum hispidulum Paunau Ditch Trail rock roof and walls of tunnel with Adiantum capilus-veneris Preserved_Specimen fronds to 2 dm long Woolford, H.A. 87 Maui BISH 1955-12-21
46 Adiantum hispidulum Paunau Ditch Trail rock roof and walls of tunnel with Adiantum capilus-veneris Preserved_Specimen fronds to 2 dm long Woolford, H.A. 87 Maui BISH 1955-12-21
47 Adiantum hispidulum Puuwaawaa cone, shady gulch on NW-facing slopes, elev. 3350 ft. on transect T9 Preserved_Specimen Takeuchi, W.N. 5824 Hawaii BISH 1989-04-01
48 Adiantum hispidulum Kau, Great Crack Preserved_Specimen Fagerlund, G.O. 1058 Hawaii BISH 1945-04-29
49 Adiantum hispidulum Waimea, on Parker Ranch lands above Honokaa Preserved_Specimen Brodie, A. Hawaii BISH
50 Adiantum hispidulum Lyon Arboretum, A5 Preserved_Specimen Wilson, K.A. Oahu BISH 1989-07-14
51 Adiantum hispidulum W Maui, Waihee Valley, inside valley, above gulch Preserved_Specimen Brodie, A. Maui BISH 1926-10-27
52 Adiantum hispidulum W Maui, Waihee Valley Preserved_Specimen Brodie, A. Maui BISH 1926-10-27
53 Adiantum hispidulum Hamakua, Waimea, Kawela Paddock under lehua tree, moist Preserved_Specimen forming colonies Hosaka, E.Y. 2099 Hawaii BISH 1938-05-25
54 Adiantum hispidulum Mokuleia, N Waianae Mts, Kealia Trail above Dillingham Airfield. On rocks in much darker shady area with Grevillia and Schinus overstory and Urochloa maxima, passiflora suberosa, Ageratina riparia, Revina humilis. Preserved_Specimen Kennedy, B. 119 Oahu BISH 2021-01-10
55 Adiantum hispidulum Waipio Valley shaded slope Preserved_Specimen 1', upright Russ, G.W. 4 Hawaii BISH 1927-07-01
56 Adiantum hispidulum Palikea, Southern Waianae Mountains. Growing out of cracks in rocky ledge with Pilea pepploides, Asplenium macraei, Rumex albescens, Barbellopsis trichophora, and Palamocladium wilkesianum. Preserved_Specimen Lobes longer and more narrow than typical hispidulum, but this plant was growing within the same crack as the more typical form. Possibly a variant or another taxon? Thomas, M.K. 358 Oahu BISH 2022-05-04
57 Adiantum hispidulum Hamakua Ditch Trail stone heap, dry pasture Preserved_Specimen Topping, D.L. 0.3629 Hawaii BISH 1932-10-13
58 Adiantum hispidulum Pauoa Valley rocks Preserved_Specimen Topping, D.L. 2634 Oahu BISH 1923-04-29
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