Invasives

The California Invasive Plant Council has classified plants on this page as invasive with impact on native ecosystems or the Federal Government has classified them as noxious weeds.

Many of these plants pose serious fire threats, all are aggressive invaders with few if any natural checks on their spread. In an effort to mitigate fire risk and protect the rich native biodiversity of Homestead, the Land Trust spends considerable time and energy removing these plants.

Dive deep with some of our invasive plants featured in articles published in the Homestead Headlines.

Invasive Pride of Madeira., April 2024

Invasive thistles, May 2024

Invasive licorice plant, July 2024

Invasive ivies, August 2024

Invasive cotoneaster, September 2024

Invasive acacias., November 2024

Invasive brooms., January 2025
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Invasive Plants of Homestead

click to enlarge

Blackwood acacia*
Acacia melanoxylon

Cape ivy*
Delairea odorata

Chasmanthe*
Chasmanthe floribunda

Cotoneaster*
cotoneaster_lacteus

English ivy*
Hedera helix

French broom*
Genista monspessulana

Hanging sedge*
Carex pendula

Harding grass*
Phalaris aquatica

Hedge parsley*
Torilis arvensis

Italian thistle*
Carduus pycnocephalus

Licorice plant*
Helichrysum petiolare

Milk thistle*
Silybum marianum

Oblong spurge*
Euphorbia oblongata

Old man's beard*
Clematis vitalba

Pampas grass*
Cortaderia jubata

Poison hemlock*
Conium maculatum

Pride of Madeira*
Echium fastuosum

Scotch broom*
Cytisus scoparius

Smooth cat's ear*
Hypochaeris glabra

Sourgrass*
Oxalis pes-caprae

Spanish broom*
Spartium junceum

Stinkwort*
Dittrichia graveolens

Tasmanian blue gum*
Eucalyptus globulus

Thoroughwort*
Ageratina adenophora

Tocalote*
Centaurea melitensis

Upright veldt grass*
Ehrharta erecta

Wattle*
Acacia decurrens

White flowered onion*
Allium triquetrum