What's the native? This plain red one?

Tiffany, purpleinopp GardenWeb, Z8b Opp, AL(8B AL)October 31, 2012


"The genus is native to tropical and subtropical regions of the New World, from the southern United States (southern South Carolina west to southern Texas) and south to northern Argentina."


"Without exception, all Canna species that have been introduced into Europe can be traced back to the Americas, and it can be asserted with confidence that Canna is solely an American genus."

USDA plants database has 10 entries for Canna, 9 of which are species indicated as introduced.

Is this plain-leaved red-flowered one a particular species or a hybrid? Native to where?

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Tiffany, purpleinopp GardenWeb, Z8b Opp, AL(8B AL)


    Bookmark   October 31, 2012 at 12:17PM
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Taxonomists require the ability to see many parts of a plant including the rhizome, seed (its color and shape), leaf measurements, and texture of the underside of the leaf along with a multitude of physical characteristics to make an educated determination. I am not a taxonomist. Your plant closely resembles the species canna compacta often sold commercially as C. 'Robert Kemp'. I have always considered this species to be a most desirable species to grow for the gardener. You may want to do a search for the suggested name. I believe C. compacta is most commonly found occurring in Argentina, but apparently has been widely dispersed.

    Bookmark   October 31, 2012 at 7:55PM
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Tiffany, purpleinopp GardenWeb, Z8b Opp, AL(8B AL)

Thanks for the informative response! These do look a lot like Robert Kemp. Totally agree about them being great plants! These were moved in June and I still got a beautiful show already this year.

Still curious which is the native Canna(s), if anyone knows...?

    Bookmark   October 31, 2012 at 8:23PM
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If you are asking which canna species are native to the U.S.:
There are possible only three species that may be considered native to the U.S. and there is debate or I may say doubt as to whether even they were not introduced at some time in the distant past. Native Americans grew and used canna rhizomes and seed for a variety of purposes. These seed likely found their way from Central or South America into the U.S. Just because these specie cannas grow in the wild does not make them native to the area where they might be found. They were simply a non-native introduction. The USDA information is outdated and I suspect applies to what species are currently growing in the wild in the areas listed. Possible the best information source on canna species was completed and released in 2001 entitled "Taxonomic Revision of the Family Cannaceae" by Dr. Nobuyuki Nanaka. In this publication he list 19 canna species including 7 infraspecific taxa.
The specie commonly found growing in the U.S. includes canna flaccida, canna glauca, and canna indica L.

    Bookmark   November 1, 2012 at 12:56AM
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Tiffany, purpleinopp GardenWeb, Z8b Opp, AL(8B AL)

Thanks for the input! I must have looked at them too quickly the other day and have made a mistake. USDA does indicate C. flaccida and glauca as native.

    Bookmark   November 5, 2012 at 10:21AM
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