Canna discolor

Canna discolor

taxobox
name = "Canna discolor"



regnum = Plantae
unranked_divisio = Angiosperms
unranked_classis = Monocots
unranked_ordo = Commelinids
ordo = Zingiberales
familia = Cannaceae
genus = "Canna"
species = "C. discolor"
binomial = "Canna discolor"
binomial_authority = Lindl.|

"Canna discolor" is a species of the "Canna" genus, belonging to the family Cannaceae, found naturally in the range from South Mexico to Colombia, widely introduced elsewhere. It is a perennial growing to 3m. 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. The flowers are hermaphrodite.

More than other "Canna" species, "C. discolor" is used extensively in agriculture in Asia. It grows high yields of very large rhizomes, sometimes the size of a man's arm, exceedingly rich in starch.

ynonyms

* "C. achiras"
* 'Brick Canna'

Taxonomy

In the last three decades of the 20th century, "Canna" species have been categorised by two different taxonomists, Paulus Johannes Maria Maas from the Netherlands and Nobuyuki Tanaka from Japan. Inevitably, there are differences in their categorisations.

Maas considers "Canna discolor" to be a synonym of "C. indica" L., however, Tanaka's studies have revealed that "C. indica" can be clearly distinguished from other taxa, as a result he recognises several varieties:;"Canna discolor" var. "discolor" (Lindl.) Nb.Tanaka, 2001A triploid, sterile both ways.

;"Canna discolor" var. "rubripunctata" Nb.Tanaka, 2001Green leaves with yellow flowers and many red spots. Seed parent sterile.

;"Canna discolor" var. "viridifolia" Nb.Tanaka, 2001No details available.

References

* Cooke, Ian, 2001. The Gardener's Guide to Growing cannas, Timber Press. ISBN 0-88192-513-6
* Johnson's Gardeners Dictionary, 1856
* Tanaka, N. 2001. Taxonomic revision of the family Cannaceae in the New World and Asia. Makinoa ser. 2, 1:34–43.

External References

* [http://www.kew.org/wcsp/prepareChecklist.do Kew Gardens, Checklist of plant families]
* [http://www.science.uts.edu.au/sasb/monocotsIIAb2.html TAXONOMIC STUDIES ON SOME EASTERN AND SOUTHEASTERN ASIATIC TAXA OF CANNA (CANNACEAE)] Nobuyuki Tanaka, Hiroshi Uchiyama, Tetsuo Koyama and Jin Murata;

ee also

* Canna
* List of Canna species
* List of Canna cultivars


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