Vascular – Exotic
Herbs - Monocots
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
Terrestrial. Damp spots, wetlands, low-growing habitats, disturbed shrubland, streamsides, riversystems.
Erect, leafy perennial herb to 1-2 m tall. Roots rhizomatous. Stem sturdy, unbranched, hairless. Leaves on the stem, to 45 x 15 cm, oblong, with prominent midrib, sheath below. Flowers often paired, 5-6 cm long, pinkish-red and reddish-yellow, with red spots. Seed capsule round, to 2 cm, with black seeds.
Hybrid cannas (Canna x generalis) have a range of forms. a. Foliage green with large yellow flowers. b. Foliage green with large showy red flowers. c. Foliage purplish with large orange flowers. Hedychium sp. (ginger) are also similar lack the strongly ribbed leaves and have multiple flowers in each inflorescence.
November, December, February, March, April
January, March, April, May
West Indies, Central and South America.
canna: Term is derived from a Greek name for a type of reed.
Reason For Introduction
Life Cycle Comments
Usually spreads vegetaitively rather than by seed (Ewan Cameron 1996)
Seeds globose, black.
Dumped vegetation, soil movement, occasionally water movement.
Tolerates hot to moderate temperature, damage and grazing, wind, salt, damp to mod dry. Intolerant of shade, heavy frost.
References and further reading
Gardner, R. 1990. Canna. Auckland Botanical Society Journal, 45: 1-4.