Cyrtostachys renda Blume, Arecaceae

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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 1 (Go to the risk assessment)

Other Latin names:  Cyrtostachys lakka Becc.

Common name(s): [more details]

Chinese: hsing hsing yeh tzu

English: lipstick palm, maharajah palm, sealing wax palm

Thai: kap daeng, mark-dang

Habit:  tree

Description:  "Slender, clustering tree palm with up to c. 3 or more adult stems up to 15 (-20) m high. Stem c. 6-10 cm in diameter, green with greyish stripes or yellow with somewhat greenish and purplish stripes, internodes 15-24 cm long, crown appearing shuttle-cock shaped. Leaves 7-10 in crown, erect, stiff, to 150 cm long; sheath tubular, c. 100 cm long, forming distinct crownshaft, scarlet to bright red, with scattered black thick scales; petiole elongate, 5-50 cm long, 1.5-2.5 cm wide and 1-2 cm thick at the base, channelled adaxially, rounded abaxially, red, indumentum as sheath; leaflets regularly arranged, leathery, 26-40 leaflets on each side, 56-107 x 3-6 cm at middle portion, apical leaflets 10-20 x 1-2 cm, briefly pointed with long tip and sometimes notched at apices, green, discolorous when dried, glaucous adaxially, waxy white abaxially, mid-vein with discontinuous membranous brown scales. Inflorescence strongly divaricate, to 90 cm long, branched to 2 (possibly 3) orders, creamy, green to dark purplish-red; peduncle 5-8 cm long; rachilla 27-73.5 cm long and 4-6 mm in diameter, calyx persistent on rachillae when fruits fallen off; pits 2-5 mm in diameter, 5-7 pits per 1 cm rachilla length. Staminate flowers 2-2.5 x 2-3 mm, asymmetrical; sepals 1.8-2 x 2 mm, imbricate, rounded, strongly keeled; petals 1-2 x 1-1.8 mm, triangular, brown at apex and base; stamens 12-15; filaments 0.7-1 x 0.2-0.3mm; anthers 1-1.5 x 0.5-0.8mm; pollen size, long axis 36-43 μm, short axis 27-33 μm, proximal wall thickness 1.5-2 μm, distal wall thickness not observed, tectum surface microfossulate-rugulate, trichotomosulcate grains present; pistillode 0.7-1 x 0.2-0.5 mm, trifid. Pistillate flowers 4-5 x 3-4 mm; sepals 3-4 x 2-3 mm, imbricate, strongly keeled, dark brown to black; petals 3-3.5 x 2-2.5 mm; gynoecium 3.5 x 1.5 mm (including three recurved stigma 0.5-1 mm); staminodes circular, 0.5-1 mm height. Fruits 7-10 x 4-7 mm, ellipsoid to ovoid, light green becoming black when ripe. Seeds 4-5 x 3-5 x 3-5, ellipsoid to ovoid"  (Heatubun, 2009, in Palmnet).

"Sex:  Monoecious.  Trunk: Clustered, to 15 ft. tall [sometimes taller]; slender, smooth, surmounted by crownshaft tinged with red.  Petiole:  Very short, 6 in long; bright scarlet.  Leafbases, which form crownshaft, are 2 ft. long and scarlet-tinged.  Leaf: Pinnate; arcing; 50 leaflets.  Leaflets: 18 in. long; slender; strong midrib and veins; glaucous beneath.  Flowerstalk: Below laves; 1-2 ft. long; branched; green, turning red.  Fruit: 2/5 in. long; oblong ovoid, black with scarlet base.  Seed: Ovoid [to round]; 1/3 in. long" (McCurrach, 1960; p. 74).

Habitat/ecology:  "Grows in lowland peat swamp forest, especially in coastal areas, but more rarely occurs in peat swamps in uplands from 0-500 m above sea level"  (Heatubun, 2009, in Palmnet).  "In Malaya, this plant grows in water in wet woods by tidal rivers" (McCurrach, 1960; p. 74).  "Plants will grow in shade or full sun and require plenty of water at all times" (Jones, 1995; pp. 205-206).

Propagation:  Seed (McCurrach, 1960; p. 74).

Native range:  Thailand, Malaysia, Sumatra and Borneo (Jones, 1995; pp. 205-206).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Cook Islands Southern Cook Islands	Rarotonga Island	introduced cultivated	McCormack, Gerald (2013)
Federated States of Micronesia Pohnpei Islands	Pohnpei Island	introduced cultivated	Herrera, Katherine/Lorence, David H./Flynn, Timothy/Balick, Michael J. (2010) (p. 36)
French Polynesia Society Islands	Tahiti Island	introduced cultivated	Florence, J./Chevillotte, H./Ollier, C./Meyer, J.-Y. (2013) Cultivée

Pacific Rim
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Indonesia Indonesia	Indonesia (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013) Sumatra
Malaysia Malaysia	Malaysia (country of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Negara Brunei Darussalam Brunei	Brunei (Negara Brunei Darussalam)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Thailand Thailand	Thailand (Kingdom of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)

Indian Ocean
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Australia (Indian Ocean offshore islands) Christmas Island Group	Christmas Island	introduced cultivated	Swarbrick, J. T. (1997) (p. 112)
Seychelles Seychelles Islands	Seychelles Islands	introduced	Invasive Species Specialist Group (2017)

Control:  If you know of control methods for Cyrtostachys renda, please let us know.