Weed Research and Information Center

Weeds in natural areas

Common Names
 
A-B •• C •• D-G •• H-M •• N-R •• S-T •• U-Z
Scientific Names
 
A-B •• C-D •• E-H •• I-O •• P-R •• S-Z


COMMON NAME Scientific name Family
Naiads Najas spp. Hydrocharitaceae or Najadaceae
Netseed lambsquarter Chenopodium berlandieri Chenopodiaceae
Nitella Nitella spp. Characeae
North African wiregrass Ventenata dubia Poaceae
Oblong spurge Euphorbia oblongata Euphorbiaceae
Old-man’s-beard Clematis vitalba Ranunculaceae
Olive Olea europaea Oleaceae
Onionweed Asphodelus fistulosus Liliaceae
Orchardgrass Dactylis glomerata Poaceae
Oxeye daisy Leucanthemum vulgare Asteraceae
Oxygenweed Lagarosiphon major Hydrocharitaceae
Pacific bentgrass Agrostis avenacea Poaceae
Pacific poison-oak
>> Pest Notes
Toxicodendron diversilobum Anacardiaceae
Pale smartweed Polygonum lapathifolium Polygonaceae
Pampasgrass
>> brochure
>> invasive plants
>> woody weed invaders
Cortaderia selloana Poaceae
Parrotfeather Myriophyllum aquaticum Haloragaceae
Parry’s tarweed Hemizonia parryi Asteraceae
Pennyroyal Mentha pulegium Lamiaceae
Peppertrees Schinus spp. Anacardiaceae
Perennial pepperweed
>> biology, ecology and control
>> brochure
>> Pest Notes
Lepidium latifolium Brassicaceae
Perennial ryegrass Lolium perenne Poaceae
Pigweeds Amaranthus spp. Amaranthaceae
Plumeless thistle Carduus acanthoides Asteraceae
Poison-hemlock Conium maculatum Apiaceae
Povertyweed Iva axillaris Asteraceae
Prickly lettuce Lactuca serriola Asteraceae
Prostrate knotweed Polygonum arenastrum Polygonaceae
Puncturevine Tribulus terrestris Zygophyllaceae
Purple loosestrife Lythrum salicaria Lythraceae
Purple starthistle Centaurea calcitrapa Asteraceae
Pyracantha Pyracantha spp. Rosaceae
Quackgrass Elytrigia repens Poaceae
Rabbitbrush Chrysothamnus nauseosus Asteraceae
Rabbitfoot polypogon Polypogon monspeliensis Poaceae
Radish Raphanus sativus Brassicaceae
Rattail fescue Vulpia myuros Poaceae
Ravennagrass Tripidium ravennae Poaceae
Red brome Bromus madritensis ssp. rubens Poaceae
Red sesbania Sesbania punicea Fabaceae
Red sorrel Rumex acetosella Polygonaceae
Redstem filaree Erodium cicutarium Geraniaceae
Reed canarygrass Phalaris arundinacea Poaceae
Ripgut brome Bromus diandrus Poaceae
Rose clover Trifolium hirtum Fabaceae
Rush skeletonweed Chondrilla juncea Asteraceae
Russian knapweed Acroptilon repens Asteraceae
Russian-olive Elaeagnus angustifolia Elaeagnaceae
Russian-thistle
>> Pest Notes
Salsola tragus Chenopodiaceae