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Costus dubius

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Species of plant

Costus dubius
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Zingiberales
Family: Costaceae
Genus: Costus
Species: C. dubius
Binomial name
Costus dubius
(Afzel.) K.Schum.

Costus dubius is a species of plant native to Tropical Africa.

Description

Costus dubius has underground rhizomes which produce leafy stems and inflorescences on separate stalks. The round inflorescences have green bracts; each bract produces a single white flower with a yellow-centered labellum. Costus dubius produces many seeds.

Costus dubius is sometimes confused with several other African species of Costus, such as Costus afer and Costus dinklagei. Costus dubius is the only African species of Costus capable of self-pollination.

Range

Costus dubius has a wide native range and can be found throughout tropical Africa.

Costus dubius has been introduced to several places in which it has become naturalized or invasive including:

  • Queensland, Australia
  • Java, Indonesia
  • Hawaii, U.S.A.

Habitat

In its native Africa, Costus dubius is found in many different types of forest, as well as along rivers and roads and in plantations. Costus dubius prefers wet tropical biomes and does not appear to survive in the subtropics.

External links

"2 Costus dubius". Botany Brisbane. Retrieved 18 July 2024. - Website contains photographs showing different features of Costus dubius

References

  1. ^ "Costus dubius (Afzel.) K.Schum". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 18 July 2024.
  2. ^ Maas-van de Kamer, H.; Maas, P.J.M.; Wieringa, J.J.; Specht, C.D. (2016). "Monograph of African Costaceae". Blumea - Biodiversity, Evolution and Biogeography of Plants. 61 (3): 280–318. doi:10.3767/000651916X694445.
  3. ^ Evenhuis, Neal L.; Eldredge, Lucius G. (2006). "New Records of Naturalized and Naturalizing Plants Around Lyon Arboretum, Manoa Valley, Oahu". Bishop Museum Occasional Papers (87): 3–18. Retrieved 18 July 2024.
  4. ^ "Costus dubius". GingersRus. Retrieved 18 July 2024.
  5. Mustaqim, Wendy A.; Setiawan, Eka. "An addition to the alien flora of Java: the first record of adventive Costus dubius (Costaceae)". Jurnal Biologi Tropis. 21 (2): 496–500. doi:10.29303/jbt.v21i2.2514.
Taxon identifiers
Costus dubius
Zingiber dubium
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