Costus spectabilis
Yellow trumpet | |
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Plate by Matilda Smith (1854–1926) Curtis’s Botanical Magazine | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Zingiberales |
Family: | Costaceae |
Genus: | Costus |
Species: | C. spectabilis
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Binomial name | |
Costus spectabilis (
Fenzl) Schumann | |
Synonyms | |
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Costus spectabilis, commonly known as the yellow trumpet, is an African, gregarious species of herb; low and perennial, it is found from Sierra Leone to Sudan to as far south as Angola and Zimbabwe.
Species habit and description
It produces four large (12 x 12 cm), fleshy leaves which lie flat on the ground and form a basal rosette. They are glabrous above and pubescent below, especially along the midrib. The leaf margin is entire, often with an edging of purple-pink. The inflorescence is terminal, growing from the center of the rosette. The flowers are showy, yellow, and open singly and die rapidly, but are immediately followed by another. The species becomes dormant during winter, shrinking to a centipede-like rhizome without roots. In spring it produces paddle-shaped leaves that appress to the soil when fully formed, similar to water-lily pads. The abaxial leaf surface has a spongy white texture. Flowers are bright yellow with a crisped margin, and some 9 cm across, with a large staminodial labellum, and resembling those of a pumpkin. The texture of the flower is soft and thin.
Familial traits
It is one of some 109 species belonging to the family of Costaceae, which is closely related to the ginger family
Range and habitat
This
Symbolism
Costus spectabilis is the national flower of Nigeria and can be seen on the country's Coat of Arms.[5]
References
- ^ "Costus | Pacific Bulb Society". Pacificbulbsociety.org. Retrieved 21 December 2021.
- ^ "A not so simple garden: Costus spectabilis, a Spectacular Plant Indeed". Geraniosgarden.blogspot.com. 13 July 2014.
- ^ "Flora of Zimbabwe: Species information: Costus spectabilis". Zimbabweflora.co.zw. Retrieved 21 December 2021.
- ^ "The Wedding Dress, Bridesmaids' Dresses and Page Boys' Uniforms". Royal.uk. 19 May 2018. Retrieved 21 December 2021.
- ^ "National Symbols - Emblem". Nigeria's 50th Independence: Celebrating Greatness. Archived from the original on 6 May 2011. Retrieved 5 February 2023.
External links
- Media related to Costus spectabilis at Wikimedia Commons