Illustrated Guide to
of New Zealand
Weeds of New Zealand
by Ian Popay, Paul Champion & Trevor James
ISBN 0 473 09760 5
by kind permission of the
Zealand Plant Protection Society
Publication or other use of images or descriptive
text on these pages is unauthorised unless written permission is
obtained from the authors and publisher.
of the publication Common Weeds of New Zealand must always
Available from Touchwood
strongly spiny, woody perennial shrub up to 1 m or more tall. Mauve
or violet flowers 3 cm across, followed by green and white mottled
berries, ripening to yellow. Leaves lobed, downy underneath. The
most common prickly species of Solanum in NZ.
- Flowers Mauve
or violet, 25-35 mm in diameter, on hairy stalks up to 10 mm long.
Anthers 4-6 mm long. Flowers in few-flowered clusters. Flowers
- Fruit Mottled
green and white berries up to 3 cm in diameter. Yellow when mature.
- Leaves Egg-shaped
to oblong, up to 9 cm long by 7 cm wide, dark green on the upper
surface, downy underneath. Deeply and irregularly divided into
lobes with shallowly-waved margins.
- Stems Branched,
with strong yellow spines up to 1 cm long and scattered, star-shaped
- Roots Non-suckering.
sands, poor pasture and scrub margins.
NI only, common on
coastal and inland lowland North Auckland and Auckland. Less common
south to Taranaki and Hawkes Bay. Originally from north Africa.
as a poisonous plant, but not often
eaten by stock.
nightshade (Solanum marginatum) is a taller spiny shrub,
up to 5 m tall, distinguished by its white felted branches, leaves
with white undersides, and upper sides with a frosted margin.
Flowers white, sometimes with purple veins. Found in scrub, forest
margins, poor pasture, roadsides, waste places. Widespread and
sometimes common in NI, locally common in Nelson and occasional
in coastal areas as far south as Banks peninsula. Listed on the
National Pest Plant Accord (see
Introduction for details).
of botanical name
name of a plant; linnaeanum after Carl von Linné
(Linnaeus), 18th cent. Swedish botanist.