Sida cordifolia L., Malvaceae

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Present on Pacific Islands?  yes

Threat only at high elevations?  no

Risk assessment results:  Reject, score: 15 (Go to the risk assessment)

Common name(s): [more details]

English: country mallow, flannelweed, heart-leaf sida, heartleaf sida, sida

Hawaiian: lei ilima

Tuamotuan: miri taratoni, purumi

Habit:  shrub

Description:  "Erect subshrubs 0.5-1.5 m tall, whitish to yellowish stellate velutinous or stellate tomentose. Leaf blades ovate to oblong or sometimes orbicular, 2-10 (-12) cm long, margins serrate, base usually shallowly cordate, petioles usually 1/3 or more the length of blades, stipules filiform, 3-7 mm long. Flowers usually in axillary clusters, often forming dense panicles or corymbs of racemes by reduction of leaves; calyx 5-7 mm long, accrescent and clasping in fruit; petals cream to pale yellow or orangish yellow, 7-9 mm long; staminal column included. Schizocarp 6-7 mm in diameter, mericarps 8-12 (-14), brownish, the body 2.8-3.5 mm long, with 2 retrorsely simple pubescent apical awns 2-4 (-5) mm long, dorsal and lateral surfaces rugose-reticulate. Seeds 1.8-2.3 mm long, glabrous or with a few hairs along the raphe" (Wagner et al., 1999; p. 897).

Habitat/ecology:  In Hawai‘i, "naturalized in dry sites" (Wagner et al., 1999; p. 897). In New Guinea, "a weed of abandoned cultivation and pastures, also occurring naturally in savannah. From sea level to about 700 m, mainly in regions of limited seasonal rainfall" (Henty & Pritchard, 1975; p. 122).

Propagation:  Seed.  "The awned mericarps are spread by adhering to clothing and livestock, in mud on vehicles, and as contaminants in hay and seed crops" (Smith, 2002; pp. 40-41).

Native range:  Pantropical.

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
French Polynesia French Polynesia Islands	French Polynesia Islands		Waterhouse, D. F. (1997) (p. 65)
French Polynesia Society Islands	Tahiti Island	introduced invasive	Florence, J. (2004) (pp. 240-242)
French Polynesia Tuamotu Archipelago	Makatea (Ma‘atea) Island	introduced invasive	Florence, J. (2004) (pp. 240-242)
French Polynesia Tubuai (Austral) Islands	Tubuai (Tupuai) Island	introduced invasive	Florence, J. (2004) (pp. 240-242)
Guam Guam Island	Guam Island		Waterhouse, D. F. (1997) (p. 65)
State of Hawaii Hawaiian Islands	Hawai‘i (Big) Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 897)
State of Hawaii Hawaiian Islands	Kaua‘i Island	introduced invasive	Lorence, David H./Flynn, Timothy W./Wagner, Warren L. (1995) (p. 41) Voucher cited: T. Flynn et al. 4436 (BISH, PTBG, US)
State of Hawaii Hawaiian Islands	Lāna‘i Island	introduced invasive	Oppenheimer, Hank (2007) (p. 26) Voucher cited: Oppenheimer H100630 (BISH, PTBG)
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive	Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 897) East Maui
State of Hawaii Hawaiian Islands	Maui Island	introduced invasive	Oppenheimer, Hank (2007) (p. 26) West Maui. Voucher cited: Oppenheimer, M. Chimera & F. Quitazol H100520 (BISH, PTBG)
State of Hawaii Hawaiian Islands	Moloka‘i Island	introduced invasive	Oppenheimer, Hank (2007) (p. 26) Vouchers cited: Oppenheimer H120619 (BISH, PTBG), Oppenheimer H120620 (BISH, PTBG)
State of Hawaii Hawaiian Islands	O‘ahu Island	introduced invasive	Herbst, Derral R./Staples, George W./Imada, Clyde T. (2004) (p. 9) Voucher cited: W. Char, S. Ching-Hrabin & M. LeGrande s.n. (BISH 690736)
New Caledonia New Caledonia	New Caledonia Islands	introduced invasive	Gargominy, Oliver/Bouchet, Philipe/Pascal, Michel/Jaffre, Tanguy/Tourneu, Jean-Christophe (1996) (p. 382) Rudérale, nombreuses localités
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive	Tassin, Jacques (2005)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced	MacKee, H. S. (1994) (p. 98) Vouchers cited: Franc 2268, Virot 1095, MacKee 4061, MacKee 16071, MacKee 33844, MacKee 29985
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)		Waterhouse, D. F. (1997) (p. 65)
Solomon Islands Solomon Islands	Solomon Islands		Swarbrick, John T. (1997) (p. 96)
Tonga Ha‘apai Group	Nomuka Island	introduced invasive	Yuncker, T. G. (1959) (p. 181) Voucher cited: Yuncker 15803
Tonga Tonga Islands	Tonga Islands		Swarbrick, John T. (1997) (p. 96)
Vanuatu New Hebrides Islands	Vanuatu (Republic of)		Swarbrick, John T. (1997) (p. 96)

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia Australia (continental)	Northern Territory	introduced invasive	Smith, Nicholas M. (2002) (pp. 40-41)
Australia Australia (continental)	Queensland	introduced invasive	Smith, Nicholas M. (2002) (pp. 40-41)
El Salvador El Salvador	El Salvador (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 335)
Honduras Honduras	Honduras (Republic of)		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 335)
Taiwan Taiwan	Taiwan Island		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 335)

Comments:  A declared noxious weed in Western Australia and the Northern Territory (Smith, 2002; pp. 40-41).

Additional information:  Additional online information about Sida cordifolia is available from the Hawaiian Ecosystems at Risk project (HEAR).

Taxonomic information about Sida cordifolia may be available from the Germplasm Resources Information Network (GRIN).

References:

Florence, J. 2004. Flore de la Polynésie française, Vol. 2. Paris. IRE Editions, Publications Scientifiques, Collection Faune et Flore Tropicales 41. 503 pp.

Gargominy, Oliver/Bouchet, Philipe/Pascal, Michel/Jaffre, Tanguy/Tourneu, Jean-Christophe. 1996. Conséquences des introductions d'espèces animales et végétales sur la biodiversité en Nouvelle-Calédonie. Rev. Ecol. (Terre Vie) 51:375-401.

Haselwood, E. L./Motter, G. G. 1983. Handbook of Hawaiian Weeds. Second edition, revised and expanded by Robert T. Hirano. University of Hawaii Press. 491 pp.

Henty, E. E./Pritchard, G. H. 1975. Weeds of New Guinea and their control. 2nd edition. Department of Forests, Division of Botany, Botany Bull. No. 7. Lae, Papua New Guinea. 180 pp.

Herbst, Derral R./Staples, George W./Imada, Clyde T. 2004. New Hawaiian plant records for 2002-2003. In: Evenhuis, Neal L. and Eldredge, Lucius G., eds. Records of the Hawaii Biological Survey for 2003. Part 1: Articles. Bishop Museum Occasional Papers. 78:3-12.

Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. 1979. A geographical atlas of world weeds. John Wiley & Sons, New York. 391 pp.

Lorence, David H./Flynn, Timothy W./Wagner, Warren L. 1995. Contributions to the flora of Hawai‘i. III. New additions, range extensions, and rediscoveries of flowering plants. In: Evenhuis, Neal L. and Miller, Scott, E., eds. Records of the Hawaii Biological Survey for 1994. Part 1: Articles. Bishop Museum Occasional Papers. 41:19-58.

MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.

Oppenheimer, Hank. 2007. New plant records from Moloka‘i, Lāna‘i, Maui, and Hawai‘i for 2006. In: Evenhuis, Neal L. and Eldredge, Lucias G., eds. Records of the Hawaii Biological Survey for 2006. Part 2: Notes. Bishop Museum Occasional Papers 96:17-34.

Smith, Nicholas M. 2002. Weeds of the wet/dry tropics of Australia - a field guide. Environment Centre NT, Inc. 112 pp.

Swarbrick, John T. 1997. Weeds of the Pacific Islands. Technical paper no. 209. South Pacific Commission, Noumea, New Caledonia. 124 pp.

Tassin, Jacques. 2005. Jacques Tassin (IAC-CIRAD), personal communication.

U.S. Dept. Agr., Agr. Res. Serv. 2007. National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Online searchable database.

Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. 1999. Manual of the flowering plants of Hawaii. Revised edition. Bernice P. Bishop Museum special publication. University of Hawai‘i Press/Bishop Museum Press, Honolulu. 1919 pp. (two volumes).

Waterhouse, D. F. 1997. The major invertebrate pests and weeds of agriculture and plantation forestry in the Southern and Western Pacific. The Australian Centre for International Agricultural Research, Canberra. 93 pp.

Yuncker, T. G. 1959. Plants of Tonga. Bishop Museum Bull. 220. Bishop Museum Press, Honolulu. 343 pp.