Herbs
Annual Ragweed – Ambrosia artemisiifolia (ASTERACEAE)
Very hard to eradicate, its seed is persistent (40 years) and can spread over a kilometre area. An annual, native to North America, also called ambrosia, horseweed and asthma plant, it can grow to 2 metre tall. Its pollen can cause allergies.
Annual ragweed is a Class 2 declared plant under Queensland legislation.
Garden Balsam, Impatiens or Busy Lizzie – Impatiens walleriana
A garden escapee that is spreading along shady sheltered creek banks.
Mistflower – Eupatorium riparium
Originally an ornamental garden plant that has made a very successfull transition to the wild.
Blue billy goat weed or Blue Top – Ageratum houstonianum
Horses dislike this herb, allowing it to replace valuable winter feed pasture. Frost kills this aggressive ground cover. From tropical America
See the pages below for information on
1 – Home. 2 – Vines. 3 – Grasses. 5 – Ground covers. 6 – Bulbs.
7 – Shrubs. 8 – Palms. 9 – Trees. 10 – Aquatic plants.
