Pacific Island Ecosystems at Risk (PIER)

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Eriocaulon truncatum
Buch.-Ham. ex Mart., Eriocaulaceae
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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: fei lu bin gu jing cao

Habit:  herb

Description:  "Leaves linear, 2.5-5 (-6.5) cm, 2-4 (-5) mm wide at middle, veins 8-11 (-20). Scapes 5-10(-18) cm, (4 or) 5 (or 6)-ribbed; sheath 2-3.8 cm; receptacle glabrous or subglabrous to villous; heads straw-colored, subglobose to hemispheric, 2-3 x 2.5-5 mm; involucral bracts straw-colored, 2.5-4 x 0.7-1.8 mm, membranous, glabrous; floral bracts obovate to oblanceolate, hyaline, glabrous or sparsely hairy. Male flowers: sepals blackish, spathelike, 1-1.8 mm, glabrous or sparsely hairy at margin, apex 2- or 3-lobed; petals 3, each with a black gland or gland absent; anthers (5 or) 6, black. Female flowers: sepals 2(or 3), blackish, free, usually glabrous, posterior one reduced; petals 3, villous adaxially and at margin, apex white clavate hairy; ovary 3-loculed; style 3-cleft. Seeds ovoid to subglobose, ca. 4 mm in diam.; testa hexagonally reticulate, cells longitudinally elongate or quadrangular with ribbonlike bands from longitudinal wall and a solitary, incomplete band from transverse wall"  (Flora of China online).

"Tufted herb, 5-20 cm tall.  Leaves strap-like, 20-60 x 1-8 mm with gradually tapering, blunt spices.  Floral heads slightly flattened, globular; 4.5-5.5 mm diameter, on glabrous stalks 5-20 cm long.  Male flowers with minute petals; female flowers with 3 sparsely hairy white petals 1.3-1.5 mm long, each tipped with a dark gland.  Seeds yellow, ribbed, 0.5-0.7 mm long."  (Waterhouse & Mitchell, 1998; pp. 39-40).

Habitat/ecology:  In China (native), "open places along stream banks; near sea level to 500 m"  (Flora of China online).  "Swampy areas, ditches, river margins and rice fields" (Waterhouse & Mitchell, 1998; pp. 39-40).

Propagation:  "Seeds dispersed by water and birds" (Waterhouse & Mitchell, 1998; pp. 39-40).

Native range:  China, Taiwan, Indonesia, Japan, Philippines, Thailand  (Flora of China online).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Philippines
Philippine Islands
Philippine Islands native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Philippines
Philippine Islands
Philippine Islands native
Merrill, Elmer D. (1925) (p. 193)
In open wet places rice paddies, etc., at low and medium altitudes.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Cambodia
Cambodia
Cambodia (Kingdom of)   Waterhouse, B. M./Mitchell, A. A. (1998) (p. 40)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Open places along stream banks; near sea level to 500 m. Guangdong, W Hainan (Changjiang Xian).
Indonesia
Indonesia
Indonesia (Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Japan
Japan
Japan (country) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Malaysia
Malaysia
Malaysia (country of)   Waterhouse, B. M./Mitchell, A. A. (1998) (p. 40)
Singapore
Singapore
Singapore (Republic of) uncertain if introduced
invasive
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 39)
Weed of uncertain origin
Taiwan
Taiwan Island
Taiwan Island native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Open places along stream banks; near sea level to 500 m.
Thailand
Thailand
Thailand (Kingdom of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Vietnam
Vietnam
Vietnam (Socialist Republic of)   Waterhouse, B. M./Mitchell, A. A. (1998) (p. 40)

Comments:  "A serious weed of rice in India but minor elsewhere" (Waterhouse & Mitchell, 1998; pp. 39-40).


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This page was created on 14 MAR 2005 and was last updated on 14 MAR 2012.