Canna glauca

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Canna glauca
Starr 071024-0184 Canna glauca.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Zingiberales
Family: Cannaceae
Genus: Canna
Species:
C. glauca
Binomial name
Canna glauca
L.
Synonyms
  • Canna angustifoliaL.
  • Canna elegansRaf. [1]
  • Canna hasslerianaKraenzl.
  • Canna jacobinifloraT.Koyama & Nob.Tanaka
  • Canna lanceolataLodd.
  • Canna liturataLink ex A.Dietr.
  • Canna mexicannaA.Dietr.
  • Canna pedicellataC.Presl.
  • Canna pruinosaHoffmanns., Verz. Pfl.-Kult.
  • Canna schlectendalianaBouché
  • Canna siamensisKraenzl.
  • Canna stenanthaNob.Tanaka
  • Canna stoloniferaD.Dietr.
  • Canna strictaBouché

Canna glauca is a species of the Canna genus, a member of the family Cannaceae. It is commonly known as water canna or Louisiana canna. [2] It is native to the wetlands of tropical America and was introduced to England in 1730. It is also reportedly naturalized in Sri Lanka, Thailand, Vietnam, Java and the Philippines. [3]

Contents

Description

It is a perennial herb growing 3–6 feet (91–183 cm) tall. [2] It has narrow, blue-green (glaucous) leaves, atop of which sit its large, delicate, and pale yellow flowers.

Distribution and habitat

C. glauca is native to the southeastern and south-central United States (Texas, Florida, Louisiana and South Carolina) as well as Mexico, Central America, South America and the West Indies. It is an aquatic species, growing as a marginal plant in up to about 15 cm of still or slow-moving water.

Taxonomy

Nobuyuki Tanaka, one of the leading researchers on genus Canna, recognises two varieties of Canna glauca: [4] Canna glauca var. glauca and Canna glauca var. siamensis(Kraenzl) N.Tanaka. The latter variety widespread in South and Southeast Asia, where it is supposed to have differentiated within the past few centuries.

Cultivation

The species prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil. The preferred soil is acid, neutral and basic (alkaline). It cannot grow in the shade and requires moist soil. [5] It is hardy to zone 10 and is frost tender. In the north latitudes it is in flower from August to October, and the seeds ripen in October. [6]

Notes

  1. Raf. Fl. Ludov. 143 1817
  2. 1 2 "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2022-02-12.
  3. Kew World Checklist of Selected Plant Families, Canna glauca
  4. Tanaka, N. 2001. Taxonomic revision of the family Cannaceae in the New World and Asia. Makinoa ser. 2, 1:34–43.
  5. Cooke, Ian, 2001. The Gardener's Guide to Growing cannas, Timber Press. ISBN   0-88192-513-6
  6. Johnson's Gardner's Dictionary (1856)

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