Abutilon grandifolium (Willd.) Sweet, Malvaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Low risk (based on second screen), score: 6 (Go to the risk assessment).

Other Latin names:  Abutilon molle Sweet; Sida grandifolia Willd.; Sida mollis Ortega

Common name(s): [more details]

English: hairy abutilon

Hawaiian: ma‘o

Marquesan: punehu

Habit:  shrub

Description:  "Shrubs 1-2 (-3) m tall, stems, petioles, and pedicels stellate tomentose and pubescent with spreading, shiny, simple hairs up to 5 mm long.  Leaf blades ovate to orbicular, 8-15 (-22) cm long, margins dentate, apex acuminate, base deeply cordate with lobes often overlapping, petioles 5-10 (-15) cm long.  Flowers solitary or 2-6 in naked cymes, exceeding the leaves, peduncles and pedicels up to 10 cm long, articulate; calyx 1.1-1.5 cm long at anthesis, lobed to near base, accrescent and loosely surrounding the fruit; corolla cup-shaped to subrotate, petals yellow to yellowish orange, 1.2-2 (-2.5) cm long, undulate-dentate apically; staminal column 5-8 mm long; style branches yellow; stigmas maroon.  Schizocarp dull black, broadly urceolate-truncate, 11-14 mm long, yellowish pubescent, mericarps usually 10, think-walled and somewhat inflated, short-beaked dorso-ventrally. Seeds usually 3-6 per mericarp, blackish, reniform, 2-3 mm long, sparsely pubescent."  (Wagner et al., 1999; p. 872).

Habitat/ecology:  In Hawai‘i, "naturalized in waste areas, fields, and along roadsides, especially in arid regions, from near sea level up to 600 (-1,075) m" (Wagner et al., 1999; p. 872).  In Niue, "growing in waste places or much modified scrub near the villages" (Sykes, 1970; pp. 111, 321).

Propagation:  Seed

Native range:  New World, now a widespread tropical weed although sometimes cultivated as an ornamental or for fiber (Wagner et al., 1999; p. 872).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia (Pacific offshore islands) Norfolk Islands	Norfolk Island	introduced invasive	Orchard, Anthony E., ed. (1994) (p. 9) Vouchers cited: P. Ralston 28 (A), W.R. Sykes NI 619 (CHR), O. Evans (CHR), P.S. Green 2397 (K), H.H. Allan (NSW)
Chile (offshore islands) Rapa Nui (Easter) Island	Rapa Nui (Easter) Island (Isla de Pasqua)	introduced cultivated	Meyer, Jean-Yves (2008) (p. 48)
Federated States of Micronesia Kosrae Island	Kosrae Island	introduced invasive	Josekutty, P. C./Wakuk, E. E./Joseph, M. J. (2002) (p. 62) Abutilon grandiflorum Willd. Possible missidentification.
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Fatu Hiva Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: B.G. Decker 2576 (PAP) Naturalisée
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Hiva Oa Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Vouchers cited: M.-H. Sachet 1851 (PAP), M.-H. Sachet 2193 (PAP), R.L. Oliver & P.A. Schäfer 3170 (PAP), R.L. Oliver & P.A. Schäfer 3228 (PAP) Naturalisée
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Nuku Hiva (Nukahiva) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Naturalisée
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Tahuata (Tuhuata) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: M.-H. Sachet , R.L. Oliver & P.A. Schäfer 2144 (PAP) Naturalisée
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Marquesas Islands	Ua Huka (Huahuna, Uahuka) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Naturalisée
French Polynesia Marquesas Islands	Ua Pou (Huapu, Uapou, Uapu) Island	introduced invasive	Lorence, David H./Wagner, Warren L. (2013)
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Society Islands	Raiatea (Havai) Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Naturalisée
French Polynesia Society Islands	Tahiti Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Society Islands	Tahiti Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Voucher cited: P.A. Savatier 850 (PAP) Naturalisée
French Polynesia Tuamotu Archipelago	Kaukura Atoll	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Tuamotu Archipelago	Kaukura Atoll	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Naturalisée
French Polynesia Austral (Tubuai) Islands	Raivavae (Raevavae) Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Austral (Tubuai) Islands	Rimatara (Rimitara) Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Austral (Tubuai) Islands	Rurutu Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Austral (Tubuai) Islands	Rurutu Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Naturalisée
French Polynesia Austral (Tubuai) Islands	Tubuai Island	introduced invasive cultivated	Florence, J. (2004) (pp. 162-164)
French Polynesia Austral (Tubuai) Islands	Tubuai Island	introduced invasive	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Naturalisée
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
State of Hawaii Hawaiian Islands	Kaho‘olawe Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
State of Hawaii Hawaiian Islands	Ni‘ihau, Lehua Islet	introduced invasive	Wood, K. R./LeGrande, Maya (2006) (p. 24) Voucher cited: Flynn et al. 4849 (BISH, PTBG)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
State of Hawaii Hawaiian Islands	Ni‘ihau Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
Niue Niue	Niue Island	introduced	Sykes, W. R. (1970) (pp. 111, 321) See comments. Voucher cited: CHR 170340
Niue Niue	Niue Island	introduced invasive	Yuncker, T. G. (1943) (p. 81) See Sykes (1970), p. 321. Vouchers cited: Yuncker 9887 (BISH), Yuncker 10157 (BISH) "On sea cliffs and in thickets".
Niue Niue	Niue Island	introduced invasive	Space, James C./Waterhouse, Barbara M./Newfield, Melanie/Bull, Cate (2004) (p. 38)
United States (other Pacific offshore islands) Midway Atoll	Midway Atoll	introduced invasive cultivated	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 872)
United States (other Pacific offshore islands) Midway Atoll	Sand Island	introduced invasive	Starr, Forest/Starr, Kim/Loope, Lloyd (2008) (pp. B-3)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
New Zealand New Zealand	New Zealand (country)	introduced invasive cultivated	Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 822) "Waste places". Occasional garden escape.
South America (Pacific rim) South America (Pacific rim)	Perú (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)

Comments:  Reported present on Niue (Sykes, 1970; pp. 111, 321) but not seen by Whistler (1988).

Control:  If you know of control methods for Abutilon grandifolium, please let us know.