Vascular – Exotic
A few widely scattered collections from NZ. First collected as a garden escape in Auckland in 2004, although there are much earlier (1950s) herbarium specimens of it in the Auckland Museum herbarium, which may be wild gatherings though the label information is unclear.
Urban weed, spreading in and near gardens.
April - August
July - January
Seed; tubers; colony expansion
Vegetative extension of established plants, but seeds freely at times (see photos attached here); probably also spreads from dumped tubers in garden waste.
2004 (but see note above)
Reason for introduction
arisarum: Possible from the Greek arista ‘bristle’ or ‘awn’ and arum, to which the genus is allied, referring to spathe of flower having a spike.