Canna coccinea is a species of the Canna genus, belonging to the family Cannaceae, a native of northern Argentina. Introduced to England from South America in 1731 .
It is a perennial growing to 2m. 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.
Canna indica var. coccinea (Mill.) Aiton
In the last three decades of the 20th century, Canna species have been categorised by two different taxonomists, Paulus Johannes Maria Maas from Netherlands and Nobuyuki Tanaka from Japan. There are differences in their categorisations.
Dr Maas considers C. coccinea to be a synonym of C. indica L., however, Dr Tanaka's studies have revealed that a DNA assay demonstrates that the C. indica complex can be clearly distinguished from other taxa, as a result he recognises it as a separate species.
Canna coccinea, Mill.
Full heads of raspberry red flowers held high over the deeper green leaves. Orange or red staminodes (usually 2). The inflorescence stalk generally elongated and not branched. The fruits contain 3 to 5 seeds. The axis (inflorescence stalk) "distinctly triquetrous". Note: triquetrous: triangular in cross-section and acutely-angled; with three distinct longitudinal ridges.
Canna coccinea f. flaviflora Chodat & Hassl.
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List of Canna species
List of Canna cultivars
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