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PicturesTop of page
IdentityTop of page
Preferred Scientific Name
- Cheilocostus speciosus (J. Koenig) C. D. Specht
Other Scientific Names
- Costus speciosus (J.König) Sm.
International Common Names
- English: crape ginger; variegated ginger
Local Common Names
- Cuba: cañuela snata
- Micronesia, Federated states of: sinser weitahta (Pohnpei)
Summary of InvasivenessTop of page
C. speciosus is a perennial herb native to Malaysia. It is widely naturalized in the Pacific region, although it can be very invasive there. It is often found in disturbed areas, on roadsides and in the forest understory. In Pohnpei it is common in watersheds where the land has been disturbed by sakau growing (Englberger, 2009).
Its seeds can be spread by birds and rodents, in soil and on machinery. C. speciosus can also spread via its stems and rhizomes (Englberger, 2009).
Taken from Stone (1970):
Tall plant, 1.5 m tall or more, with erect or spreading stems; leaves elliptic or obovate, up to 20 cm long or more, about 4-6.4 cm wide, pubescent beneath; shortly petiolate; inflorescence terminal, large, up to 10 cm long, with red bracts about 1.5 cm long ; flowers white, calyx red, corolla white, 5-6 cm long; stamen crest yellow; capsules red; seeds black with a white fleshy aril.
Prevention and Control
Taken from Englberger (2009):
Mechanical control by pulling is difficult but can be effective if done repeatedly for an extended period. For younger plants, a foliar spray of triclopyr can be used. For older plants, stem application of undiluted triclopyr, brushed or sprayed onto freshly-cut stems, can be used.
Taxonomic TreeTop of page
- Domain: Eukaryota
- Kingdom: Plantae
- Phylum: Spermatophyta
- Subphylum: Angiospermae
- Class: Monocotyledonae
- Order: Zingiberales
- Family: Zingiberaceae
- Genus: Cheilocostus
- Species: Cheilocostus speciosus
Distribution TableTop of page
The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.
|Continent/Country/Region||Distribution||Last Reported||Origin||First Reported||Invasive||Reference||Notes|
|USA||Present||Present based on regional distribution.|
Central America and Caribbean
|Cuba||Present||Introduced||Invasive||Oviedo Prieto et al., 2012|
|American Samoa||Present||Introduced||Englberger, 2009||Naturalized|
|Cook Islands||Present||Introduced||Englberger, 2009||Naturalized|
|French Polynesia||Present||Introduced||Englberger, 2009||Naturalized|
|Marshall Islands||Present||Introduced||Englberger, 2009||Naturalized|
|Micronesia, Federated states of||Present||Introduced||Invasive||Englberger, 2009||Invasive in Pohnpei, where it is often found in watersheds where the land has been disturbed by sakau growing. Also present in Kosrae and Yap|
|New Caledonia||Present||Introduced||Englberger, 2009||Naturalized|
|Papua New Guinea||Present||Introduced||Englberger, 2009||Naturalized|
|Solomon Islands||Present||Introduced||Englberger, 2009||Naturalized|
Habitat ListTop of page
ReferencesTop of page
Englberger K, 2009. Invasive weeds of Pohnpei: A guide for identification and public awareness. Kolonia, Federated States of Micronesia: Conservation Society of Pohnpei, 29 pp.
Oviedo Prieto R; Herrera Oliver P; Caluff MG, et al. , 2012. National list of invasive and potentially invasive plants in the Republic of Cuba - 2011. (Lista nacional de especies de plantas invasoras y potencialmente invasoras en la República de Cuba - 2011). Bissea: Boletín sobre Conservación de Plantas del Jardín Botánico Nacional de Cuba, 6(Special Issue 1):22-96.
Stone BC, 1970. The flora of Guam. Micronesica 6:218.
Distribution MapsTop of page
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