Golden Gate Priority Invasive Plants Species

Large area covered in a carpet of Traveller's joy, a climbing shrub
Traveller's joy (Clematis vitalba), a Priority 1 invasive plant in Golden Gate National Recreation Area.

NPS / Eric Wrubel

The San Francisco Bay Area Inventory & Monitoring Network's Invasive Species Early Detection Program (ISED) creates lists of invasive plant species to target for early detection. The species are ranked from one (highest priority for early detection) to three (medium priority).

  • Priority 1 plants are highly invasive and are typically not widespread. Control or even eradication is often feasible. ISED records point occurrences and polygon assessments for all patches of these species, regardless of their size. Point occurrences are individual points recorded to represent an entire patch of invasive plants. Polygon assessments describe the size, shape, and coverage of a patch.
  • Priority 2 plants are highly invasive and usually more common than Priority 1 species. Small, outlier patches may be targeted for eradication or control. Uncommon species of concern are also listed here to improve our understanding of their distribution in the park. ISED records point occurrences for all patches, and buffered point assessments for patches smaller than 100 square meters.
  • Priority 3 plants include all other non-native plants. These may be widespread invasives that are difficult to control at the scale of the park, or less common species that do not cause significant ecological harm. ISED records presence/absence by subwatershed. No points or polygons are mapped.
2017 priority invasive plant species in Golden Gate National Recreation Area
Priority Scientific Name Common Name Family
1 Acroptilon repens Russian Knapweed Asteraceae
1 Aegilops triuncialis Barbed Goatgrass Poaceae
1 Ailanthus altissima Tree-Of-Heaven Simaroub­aceae
1 Albizia lophantha Silk Tree Fabaceae
1 Allium vineale Vineyard Onion Alliaceae
1 Ammophila arenaria European Beachgrass Poaceae
1 Ammophila breviligulata American Beachgrass Poaceae
1 Anthoxanthum odoratum Sweet Vernal Grass Poaceae
1 Aptenia cordifolia Heartleaf Iceplant Aizoaceae
1 Arctotheca calendula Fertile Capeweed Asteraceae
1 Arctotheca prostrata Creeping Capeweed Asteraceae
1 Arundo donax Giant Reed Poaceae
1 Berberis darwinii Darwin's Berberis Berberid­aceae
1 Brachypodium sylvaticum Slender False Brome Poaceae
1 Carduus acanthoides Plumeless Thistle Asteraceae
1 Carex pendula Hanging Sedge Cyperaceae
1 Carpobrotus chilensis Sea Fig Aizoaceae
1 Carthamus lanatus Woolly Distaff Thistle Asteraceae
1 Centaurea calcitrapa Purple Starthistle Asteraceae
1 Centaurea solstitialis Yellow Starthistle Asteraceae
1 Cirsium arvense Canada Thistle Asteraceae
1 Clematis vitalba Traveller's Joy Ranuncul­aceae
1 Conicosia pugioniformis Narrow-Leaved Iceplant Aizoaceae
1 Cortaderia selloana Pampas Grass Poaceae
1 Crataegus monogyna Singleseed Hawthorn Rosaceae
1 Cynara cardunculus Cardoon Asteraceae
1 Cytisus scoparius Scotch Broom Fabaceae
1 Cytisus striatus Portuguese Broom Fabaceae
1 Digitalis purpurea Purple Foxglove Scrophular­iaceae
1 Dittrichia graveolens Stinkweed Asteraceae
1 Drosanthemum floribundum Showy Dewflower Aizoaceae
1 Echium plantagineum Salvation Jane Boraginaceae
1 Ehrharta calycina Perennial Veldt Grass Poaceae
1 Eichhornia crassipes Water Hyacinth Ponteder­iaceae
1 Elymus caput-medusae Medusahead Poaceae
1 Euphorbia oblongata Oblong Spurge Euphorb­iaceae
1 Fallopia japonica Japanese Knotweed Polygonaceae
1 Hedera canariensis Algerian Ivy Araliaceae
1 Helichrysum petiolare Licorice Plant Asteraceae
1 Hypericum grandifolium Largeleaf St. Johnswort Clusiaceae
1 Hypericum perforatum Klamathweed Clusiaceae
1 Ilex aquifolium English Holly Aquifoliaceae
1 Lepidium latifolium Perennial Pepperweed Brassicaceae
1 Limonium ramosissimum Algerian Sea Lavender Plumbagin­aceae
1 Ludwigia hexapetala Six-Petal Water Primrose Onagraceae
1 Ludwigia peploides ssp. montevidensis Floating Water Primrose Onagraceae
1 Maytenus boaria Chilean Mayten Celastraceae
1 Mesembry­anthemum crystallinum Ice Plant Aizoaceae
1 Myriophyllum aquaticum Parrot's-Feather Haloragaceae
1 Myriophyllum spicatum Eurasian Watermilfoil Haloragaceae
1 Nassella tenuissima Finestem Needlegrass Poaceae
1 Nicotiana glauca Tree Tobacco Solanaceae
1 Phalaris arundinacea Reed Canary Grass Poaceae
1 Phalaris elongata Kolea Grass Poaceae
1 Pittosporum crassifolium Stiffleaf Cheesewood Pittosporaceae
1 Pittosporum undulatum Victorian Box Pittosporaceae
1 Pyracantha angustifolia Narrowleaf Firethorn Rosaceae
1 Rhamnus alaternus Italian Buckthorn Rhamnaceae
1 Robinia pseudoacacia Black Locust Fabaceae
1 Romulea rosea var. australis Rosy Sandcrocus Iridaceae
1 Rytidosperma caespitosum Common Wallaby Grass Poaceae
1 Rytidosperma penicillatum Hairy Wallaby Grass Poaceae
1 Scabiosa atropurpurea Mourningbride Dipsacaceae
1 Spartina alterniflora Smooth Cordgrass Poaceae
1 Spartium junceum Spanish Broom Fabaceae
1 Stipa chaetophora Stipoid Ricegrass Poaceae
1 Stipa manicata Andean Tussockgrass Poaceae
1 Stipa purpurata Bristly Needle Grass Poaceae
1 Trifolium angustifolium Narrowleaf Clover Fabaceae
1 Ulex europaeus Gorse Fabaceae
1 Vinca major Periwinkle Apocynaceae
2 Acacia melanoxylon Blackwood Acacia Fabaceae
2 Acacia paradoxa Kangeroo Thorn Fabaceae
2 Ageratina adenophora Thoroughwort Asteraceae
2 Agrostis avenacea Pacific Bentgrass Poaceae
2 Bromus madritensis ssp. rubens Red Brome Poaceae
2 Bromus tectorum Cheat Grass Poaceae
2 Buddleja davidii Butterfly Bush Scrophular­iaceae
2 Calendula arvensis Field Marigold Asteraceae
2 Centaurea melitensis Tocalote Asteraceae
2 Cestrum parqui Orange Jessamine Solanaceae
2 Cynodon dactylon Bermudagrass Poaceae
2 Dactylis glomerata Orchard Grass Poaceae
2 Datura stramonium Jimsonweed Solanaceae
2 Delairea odorata Cape Ivy Asteraceae
2 Dipsacus fullonum Fuller's Teasel Dipsacaceae
2 Eucalyptus globulus Bluegum Eucalyptus Myrtaceae
2 Festuca arundinacea Tall Fescue Poaceae
2 Fuchsia magellanica Hardy Fuchsia Onagraceae
2 Geranium purpureum Herb Robert Geraniaceae
2 Geranium robertianum Robert Geranium Geraniaceae
2 Glyceria declinata Waxy Mannagrass Poaceae
2 Hedera helix English Ivy Araliaceae
2 Iris pseudacorus Yellow Flag Iris Iridaceae
2 Lamiastrum galeobdolon Yellow Archangel Lamiaceae
2 Leptospermum laevigatum Australian Teatree Myrtaceae
2 Leucanthemum vulgare Oxeye Daisy Asteraceae
2 Ligustrum lucidum Glossy Privet Oleaceae
2 Mentha pulegium Pennyroyal Lamiaceae
2 Mercurialis annua Annual Mercury Rubiaceae
2 Oxalis pes-caprae Bermuda Buttercup Oxalidaceae
2 Pennisetum clandestinum Kikuyu Grass Poaceae
2 Phoenix canariensis Canary Isl. Date Palm Arecaceae
2 Phytolacca americana var. americana Pokeweed Phytolacc­aceae
2 Roldana petasitis Velvet Groundsel Asteraceae
2 Rosa rubiginosa Sweetbriar Rose Rosaceae
2 Rubus armeniacus Himalayan Blackberry Rosaceae
2 Salsola soda Oppositeleaf Russian Thistle Chenopoi­aceae
2 Solanum aviculare New Zealand Nightshade Solanaceae
2 Sorghum halepense Johnson Grass Poaceae
2 Sparaxis tricolor Harlequin Flower Iridaceae
2 Stipa miliacea var. miliacea Smilo Grass Poaceae
2 Tradescantia fluminensis Wandering Jew Commelin­aceae
3 Arrhenatherum elatius Tall Oatgrass Poaceae
3 Brassica rapa Field Mustard Brassicaceae
3 Carpobrotus edulis Iceplant Aizoaceae
3 Coprosma repens Creeping Mirrorplant Rubiaceae
3 Cortaderia jubata Jubata Grass Poaceae
3 Cotoneaster franchetii Orange Cotoneaster Rosaceae
3 Cotoneaster lacteus Milkflower Cotoneaster Rosaceae
3 Cotoneaster pannosus Silverleaf Cotoneaster Rosaceae
3 Ehrharta erecta Panic Veldt Grass Poaceae
3 Erigeron karvinskianus Latin American Fleabane Asteraceae
3 Foeniculum vulgare Sweet Fennel Apiaceae
3 Genista monspessulana French Broom Fabaceae
3 Gunnera tinctoria Chilean Gunnera Gunneraceae
3 Lathyrus latifolius Everlasting Pea Fabaceae
3 Ligustrum ovalifolium California Privet Oleaceae
3 Linaria vulgaris Butter And Eggs Scrophular­iaceae
3 Lonicera japonica Japanese Honeysuckle Caprifoliaceae
3 Parietaria judaica Spreading Pellitory Urticaceae
3 Phalaris aquatica Harding Grass Poaceae
3 Pinus radiata Monterey Pine Pinaceae
3 Schinus molle Pepper Tree Anacard­iaceae
3 Tamarix chinensis Saltcedar Tamaricaceae
3 Xanthium spinosum Spiny Cockleburr Asteraceae
3 Xanthium strumarium Rough Cockleburr Asteraceae