Pacific Island Ecosystems at Risk (PIER)

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Sidastrum micranthum
(A.St.-Hil.) Fryxell, Malvaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Sida micranthum St. Hil.

Common name(s): [more details]

English: dainty sandmallow

Habit:  shrub

Description:  "Herbs or shrubs 1-3 m tall, densely yellowish stellate pubescent.  Leaf blades ovate to broadly ovate, 5-15 cm long, becoming progressively smaller and narrower in the inflorescence, apex acute, base shallowly cordate, petioles shorter than blades.  Flowers in narrow panicles, axillary racemes, or glomerules; calyx 1.8-2.5 mm long; corolla pale yellow to orange, rotate, petals 2-3 mm long; staminal column ca. 3 mm long; anthers 6-12.  Mericarps 5, pale brown, 1.6-2 mm long, striate-reticulate laterally, without apical beaks, stellate pubescent dorso-apically.  Seeds reddish brown, ca. 1.3 mm long, glabrous"  (Wagner et al., 1999; p. 901).

Habitat/ecology:  In Hawai‘i, "naturalized in pastures"  (Wagner et al., 1999; p. 901).

Propagation:  Seed

Native range:  "Widespread in South America, the Caribbean, and Central America"  (Wagner et al., 1999; p. 901).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 901)
Voucher cited: Greenwell & Greenwell 19369 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Lorence, David H./Flynn, Tim (2006) (p. 3)
Voucher cited: T. Flynn 7108 (BISH, PTBG, US)
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Oppenheimer, Hank (2008) (p. 30)
Voucher cited: Oppenheimer, Perlman & Tangalin H10704 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Starr, Forest/Starr, Kim/Loope, Lloyd L. (2003) (p. 28)
East Maui. Voucher cited: Starr & Martz 001120-1 (BISH)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Oppenheimer, Hank (2007) (p. 27)
Voucher cited: Oppenheimer H120619 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 901)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
South America (Pacific rim)
South America (Pacific rim)
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)


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This page was created on 12 DEC 2007 and was last updated on 12 DEC 2007.