Pacific Island Ecosystems at Risk (PIER)

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Tacca chantrieri
André, Taccaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 5 (Go to the risk assessment)

Other Latin names:  Tacca macrantha H. Limpr.

Common name(s): [more details]

Chinese: jian gen shu

English: batflower, cat's-whiskers, devil-flower

Habit:  herb

Description:  "Rhizome cylindric, growing vertically, up to 10 cm long by 1.5 cm in diameter. Leaves 3-12, rosulate, variable, elliptic, ovate, oblong-(ob)ovate, or (ovate-) lanceolate, 17-55 by 4.4-22 cm, deep green, paler beneath, base cuneately attenuate but not decurrent, sometimes unequal, apex acuminate; nerves pinnate; petiole 11-43 cm by 2-5 mm, sheath 3-15 by 0.3-2 cm. Inflorescences 1-2, up to 25-flowered; scape 6-63 by 0.1-0.7 cm. Involucral bracts 4, (sub)decussate, variable, green to almost black; 2 outer bracts ovate or triangular to ovate-lanceolate, sessile, 2-9 by 0.8-4 cm, apex acute or acuminate, 2 inner bracts thinner, (broadly) ovate to oblong, sometimes unequilateral, 2.5-10 by 1.5-9 cm, sessile or with attenuate base, apex acute or acuminate. Filiform bracts 6-26, up to 20 cm by 0.2-1 mm, pale green or violet green. Flowers 1-2.5 by 0.6-2 cm, buds green, flowers greenish white when young, when older red, violet, purple, or blackish ; pedicel 1.2-4 cm by 0.5-2 mm in diameter; perianth tube 3-7 by 6-15 mm. Perianth lobes mostly reflexed during anthesis and persistent as a small remnant; 3 outer ones (oblong-) ovate or (narrowly) triangular, 5-12 by 3-8 mm, apex acute, acuminate, or mucronate; 3 inner ones (broadly) ovate, or triangular, 4-11 by 4-12 mm; apex acuminate or mucronate, veins prominent at inside. Stamens: adnate portion of the filaments 2-3 by 0.5-1 mm, free apical portion 3 by 1.5 mm; thecae up to 2 mm long, greenish yellow. Ovary 2-7 by 3-5 mm; disk absent; style 2-3 by 2-3 mm; stigmatic lobes 1 by 1.5 mm. Fruit triangular to round on cross-section, 2-4 by 1-2 cm, (lustrous) green, deep orange-red, or purple. Seeds reniform, 3-4 by 2-3 by 1-1.5 mm, glabrous, brown, 9-14-ribbed  (van Steenis et al.; v. 7, pt. 4, pp. 813-14).

"Rhizomes subcylindric, thick. Petiole 10-30 cm; leaf blade oblong to oblong-elliptic, 20-50 (-60) x 7-14 (-25) cm, glabrous or abaxially pubescent, base rounded-cuneate to cuneate, apex shortly caudate. Scape long; involucral bracts 4, dark purple, outer 2 ovate-lanceolate, inner 2 broadly ovate; umbels 5-7 (-18)-flowered. Perianth lobes purplish brown, lanceolate. Stigma 3-lobed. Berry purplish brown, ellipsoid, ca. 3 cm, fleshy, 6-ridged, with persistent perianth lobes. Seeds reniform"  (Flora of China online).

Habitat/ecology:  "Primary and secondary forests, in Malaya at low altitude and on hills, elsewhere ascending to 1400 (-2100) m  (van Steenis et al.; v. 7, pt. 4, pp. 813-14).  In China (native), "forests, valleys, along rivers; 200-1300 m"  (Flora of China online).

Propagation:  Seed

Native range:  Bangladesh, India, Sri Lanka, China, Southeast Asia (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Guam
Guam Island
Guam Island introduced
Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1987) (p. 106)
State of Hawaii
Hawaiian Islands
O‘ahu Island   Bishop Museum (U.S.A. Hawaii. Honolulu.) (1980) (voucher ID: BISH 487303)
Taxon name on voucher: Tacca chantrieri André
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
cultivated
MacKee, H. S. (1994) (p. 134)
Introduit récemment et encore rare dans les jardins.
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Malaysia
Malaysia
Malaysia (country of) native
van Steenis, C. G. G. J. et al (1948)
Singapore
Singapore
Singapore (Republic of) introduced
cultivated
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 84)


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

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This page was created on 2 MAR 2012 and was last updated on 9 MAR 2012.