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Costus dubius

(Afzel.) K.Schum. (1904)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Zingiberales Family: Costaceae Genus: Costus

African costus

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Description

Key Characters:

Growth Form:

Stems:

Roots:

Leaves:

Flowers:

Fruit:

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Only found in cultivation
O'ahu Naturalized

Dispersal Agents


Vegetative Reproduction

Pollinators

Bibliography

Name Published In: H.G.A.Engler (ed.), Pflanzenr., IV, 46: 409 (1904)

Other References

Daehler & Baker 2006:6 (NEWNAT/O, DESCR)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Costus dubius Hanalei District: Limahuli Garden and Preserve, in Limahuli Valley. Lower garden section along driveway, just behind Tabebuia and Dillenia philippinensis trees Behind Tabebuia and Dillenia philippinensis trees Preserved_Specimen Perennial rhizomatious herb, pseudostems densely clumped, 1.5-1.8 m. tall, leaves plain green. Infl. terminal, bracts green, floral bract & calyx green, outer tepals white, labellum white w/pink tint & yellow center spot. Lorence, D.H. 7949 Kauai BISH 1997-02-06
2 Costus dubius Waimea Arboretum and Botanical Garden. In full sun. Preserved_Specimen Clump with stems to 2.5 m long. Inflorescences at base on stem 10-40 cm long. Flowers white, except for the inner surface of the lip, which has some creamy yellow. Lau, J. 2685 Oahu BISH 1986-07-28
3 Costus dubius Koloa District. National Tropical Botanical Garden, McBryde Garden in Lawai Valley. Zingiberales collection near Pump House 6, behind pump keepers cottage. Cultivated. Preserved_Specimen Clumping perennial herb, stems to 2.5 m. Leaves plain green, lustrous above. Inflorecence basal (rarely terminal), bracts green, tepals white, labellum white, yellow patch within. Seeds black, aril white. Naturalizing locally. Lorence, D.H. 10523 Kauai BISH 2015-07-15
4 Costus dubius Wahiawa Botanical Gardens Preserved_Specimen Herb to 3m. Stems brown to green with maroon dots. Leaves dark shiny green above; lighter shiny yellow-green below. Inflorescence erect, terminal. Bracts green, flowers white. Yellow band inside of corolla. Outer edge of corolla pink. Teraoka, W. 324 Oahu BISH 1980-07-22
5 Costus dubius Waimea Arboretum and Botanical Garden Preserved_Specimen Plant to approximately 8 feet; inflorescence borne both on separate shoots and at the tips of leafy shoots; sepals light green; petals white; labellum white with yellow at the center. Kirchoff, B.K. 88163 Oahu BISH 1988-05-30
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