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 An
Illustrated Guide to
Common Weeds
of New Zealand
Erigeron
karvinskianus
Mexican
daisy
Family
ASTERACEAE
 Reproduced
from
Common
Weeds of New Zealand
by Ian Popay, Paul Champion & Trevor James
ISBN 0 473 09760 5
by kind permission of the
New
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.
Appropriate acknowledgement
of the publication Common Weeds of New Zealand must always
be given.
Available from Nationwide Book Distributors
Sprawling evergreen
perennial daisy up to 30 cm tall. Flowers very similar to those
of common daisy, but leaves small, narrow and pleasant-smelling
when crushed.
- Flowers Very
similar to the daisy Bellis perennis. Pink, 15-25 mm
in diameter, with pink- or red-tipped ray florets and yellow disk
florets. Solitary or in few-flowered clusters. Flowers Sep-May.
- Fruit Sparsely
hairy achenes (seeds) 1-1.4 mm long, with a single row of long-haired
pappus.
- Leaves Small,
narrow, elliptical upper leaves. Lower leaves are often three-lobed.
Pleasant-smelling when crushed.
- Stems Long,
thin, ribbed, sparsely-hairy to smooth, rooting, sprawling, up
to 70 cm long.
Habitat
Rock walls, stony places,
dry waste places, road-sides, stream-sides and scrub.
Distribution
Garden escape now common
in NI. Occasional in SI in Nelson, Marlborough, Westland, Canterbury
and Otago. Originally from Mexico.
Comments
Listed on the National
Pest Plant Accord (see Introduction for details).
Derivation
of botanical name
Erigeron (Gr.)
= early old man, referring to fluffy, white seed heads; karvinskianus
after Wilhelm Friedrich Karwinski von Karwin, 19th cent.
German explorer.
Web-notes:
Weed Links
On this site
Reproduced from Common Weeds
of New Zealand:
External Links
 Weedbusters
New Zealand
- Weedbusters is a weeds awareness and education programme that aims to
protect New Zealand's environment from the increasing weed problem.
- AgPest
- A free tool to assist farmers and agricultural professionals in decision-making regarding weed and pest identification, biology, impact and management.
 New Zealand Weeds Key
- An interactive identification key to the weeds of New Zealand. Developed at Landcare Research.
New
Zealand Plant Conservation Network naturalised plants
- Search for information on more than 2500 naturalised and weedy plants.
 New
Zealand Plant Protection Society
- Their main objective: "To pool and exchange information on the biology
of weeds, invertebrate and vertebrate pests, pathogens and beneficial organisms
and methods for modifying their effects."
-
 Massey
University Weeds Database- A site providing information about New Zealand weeds and weed control.
It has a series of pages showing pictures of New Zealand weeds, notes on
identification and control. It also provides information on a university
paper entitled Controlling Weeds.
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