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Criteria:   found in Lassen County  •   is not native  •  group by lifeform
362  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual180 plants
  Lifeform: Biennial2 plants
  Lifeform: Perennial149 plants
Acroptilon repens ! Russian knapweed Perennial herb  
Agropyron cristatum Crested wheatgrass Perennial grass 5
Agropyron cristatum ssp. pectinatum Crested wheatgrass Perennial grass 3
Agropyron desertorum Desert crested wheatgrass Perennial grass 3
Agropyron fragile Crested wheatgrass Perennial grass 3
Agrostis capillaris Colonial bentgrass Perennial grass 2
Agrostis gigantea Creeping bentgras Perennial grass 4
Agrostis stolonifera ! Redtop Perennial grass 1
Alcea rosea Holly hock Perennial herb 8
Alisma lanceolatum Water plantain Perennial herb (aquatic)  
Alopecurus pratensis ! Meadow foxtail Perennial grass 6
Antennaria alpina Alpine pussytoes Perennial herb 1
Arctium lappa Greater burdock Perennial herb 1
Arctium minus Common burdock Perennial herb  
Arrhenatherum elatius Tall oatgrass Perennial grass 2
Barbarea verna Wintercress Perennial herb  
Bromus inermis Smooth brome Perennial grass 3
Bromus inermis ssp. inermis Smooth brome Perennial grass  
Cardaria chalepensis Lens podded hoary cress Perennial herb  
Cardaria draba Heart podded hoary cress Perennial herb  
Cardaria pubescens White top Perennial herb  
Carduus nutans ! Nodding plumeless thistle Perennial herb  
Castilleja glandulifera Gland indian paintbrush Perennial herb  
Castilleja pilosa var. longispica Longspike indian paintbrush Perennial herb  
Centaurea biebersteinii Spotted knapweed Perennial herb  
Centaurea diffusa ! Diffuse knapweed Perennial herb  
Centaurea maculosa Spotted knapweed Perennial herb  
Centaurea squarrosa Spreading thistle Perennial herb  
Centaurea stoebe Spotted knapweed Perennial herb  
Centaurea stoebe ssp. micranthos ! Spotted knapweed Perennial herb  
Centaurea virgata Squarrose knapweed Perennial herb  
Centaurea virgata ssp. squarrosa ! Squarrose knapweed Perennial herb  
Cerastium fontanum Common mouse ear chickweed Perennial herb  
Cerastium fontanum ssp. vulgare Common chickweed Perennial herb  
Chondrilla juncea ! Skeleton weed Perennial herb  
Cichorium intybus Chicory Perennial herb 9
Cirsium arvense ! Canada thistle Perennial herb  
Cirsium canescens Prairie thistle Perennial herb  
Cirsium ochrocentrum Beaumont thistle Perennial herb  
Cirsium ochrocentrum var. ochrocentrum Yellowspine thistle Perennial herb  
Cirsium undulatum Wavy leaved thistle Perennial herb  
Cirsium vulgare ! Bullthistle Perennial herb  
Comandra umbellata ssp. pallida Pale bastard toadflax Perennial herb (parasitic)  
Conium maculatum ! Poison hemlock Perennial herb  
Convolvulus arvensis Field bindweed Perennial herb, Vine  
Cynoglossum officinale ! Hound's tongue Perennial herb  
Dactylis glomerata ! Orchardgrass Perennial grass 6
Descurainia incana ssp. incana Mountain tansymustard Perennial herb  
Dipsacus fullonum ! Wild teasel Perennial herb  
Elymus hispidus Intermediate wheatgrass Perennial grass 6
Elymus ponticus Tall wheat grass Perennial grass 4
Elymus repens Quack grass Perennial grass  
Elymus subsecundus Bearded wheatgrass Perennial grass  
Elytrigia elongata Tall wheatgrass Perennial grass 2
Elytrigia intermedia Intermediate wheatgrass Perennial grass 4
Elytrigia intermedia ssp. barbulata Barbed intermediate wheatgrass Perennial grass 1
Elytrigia intermedia ssp. intermedia Intermediate wheatgrass Perennial grass 2
Elytrigia pontica Tall wheatgrass Perennial grass 1
Elytrigia pontica ssp. pontica Rush wheatgrass Perennial grass 1
Elytrigia repens Quack grass Perennial grass  
Eriogonum effusum Spreading buckwheat Perennial herb  
Euphorbia esula Leafy spurge Perennial herb  
Euphorbia virgata ! Leafy spurge Perennial herb  
Festuca arundinacea ! Reed fescue Perennial grass 7
Festuca pratensis Meadow fescue Perennial grass 2
Galium tinctorium Stiff marsh bedstraw Perennial herb  
Grindelia squarrosa Curlycup gumweed Perennial herb  
Grindelia squarrosa var. serrulata Curlycup gumweed Perennial herb  
Gypsophila paniculata ! Baby's breath Perennial herb 3
Gypsophila paniculata var. paniculata Baby's breath Perennial herb 3
Helianthus petiolaris Prairie sunflower Perennial herb  
Helianthus petiolaris ssp. petiolaris Prairie sunflower Perennial herb  
Holcus lanatus ! Common velvetgrass Perennial grass  
Humulus lupulus Common hop Perennial herb 5
Hypericum perforatum ! Klamathweed Perennial herb 2
Lathyrus pauciflorus Fewflower pea Perennial herb  
Lepidium appelianum ! Hairy whitetop Perennial herb  
Lepidium draba ! Whitetop Perennial herb  
Lepidium draba ssp. chalepense Lenspod whitetop Perennial herb  
Lepidium draba ssp. draba Whitetop Perennial herb  
Lepidium latifolium ! Perennial pepperweed Perennial herb  
Leucanthemum vulgare ! Oxe eye daisy Perennial herb 6
Linaria dalmatica Dalmatian toadflax Perennial herb  
Linaria dalmatica ssp. dalmatica ! Dalmatian toadflax Perennial herb  
Linaria genistifolia Broomleaf toadflax Perennial herb  
Linaria genistifolia ssp. dalmatica Dalmatian toad flax Perennial herb  
Lotus corniculatus Bird's foot trefoil Perennial herb 8
Lotus pedunculatus Big trefoil Perennial herb  
Lotus uliginosus Marsh lotus Perennial herb  
Marrubium vulgare ! White horehound Perennial herb 4
Medicago sativa Alfalfa Perennial herb 3
Myosotis latifolia ! Wide leaved forget me not Perennial herb  
Myosotis scorpioides Forget me not Perennial herb 3
Myriophyllum spicatum ! Water milfoil Perennial herb  
Nepeta cataria Catnip Perennial herb 7
Onobrychis viciifolia Sanfoin Perennial herb 2
Onopordum acanthium ! Scotch cottonthistle Perennial herb  
Onopordum acanthium ssp. acanthium Scottish thistle Perennial herb  
Pastinaca sativa Wild parsnip Perennial herb  
Phacelia heterophylla ssp. heterophylla Varileaf phacelia Perennial herb  
Phacelia lutea Yellow phacelia Perennial herb  
Phacelia lutea var. lutea Yellow phacelia Perennial herb  
Phleum pratense Common timothy Perennial grass 4
Plantago lanceolata ! Ribwort Perennial herb  
Plantago major Common plantain Perennial herb 2
Poa bulbosa Bulbous blue grass Perennial grass  
Poa bulbosa ssp. vivipara Bulbous blue grass Perennial grass  
Poa bulbosa var. vivipara Perennial grass  
Poa compressa Canada blue grass Perennial grass 6
Poa palustris Fowl bluegrass Perennial grass 3
Poa pratensis ! Kentucky blue grass Perennial grass 2
Poa pratensis ssp. angustifolia Narrow leaved kentucky blue grass Perennial grass  
Poa pratensis ssp. pratensis Kentucky blue grass Perennial grass  
Poa trivialis Rough blue grass Perennial grass 2
Polemonium caeruleum Charity Perennial herb 3
Potentilla recta Sulphur cinquefoil Perennial herb 1
Poterium sanguisorba Garden burnet Perennial herb 6
Puccinellia distans European alkali grass Perennial grass 4
Ratibida columnifera Upright prairie coneflower Perennial herb 14
Rhaponticum repens ! Russian knapweed Perennial herb  
Rumex acetosella ! Sheep sorrel Perennial herb 1
Rumex britannica Pale dock Perennial herb 1
Rumex crispus ! Curly dock Perennial herb 4
Rumex orbiculatus Greater water dock Perennial herb 1
Rumex stenophyllus Narrowleaf dock Perennial herb  
Salvia aethiopis ! Mediterranean sage Perennial herb  
Sanguisorba minor ssp. muricata Garden burnet Perennial herb  
Saponaria officinalis ! Bouncing bet Perennial herb 2
Schoenoplectus acutus var. acutus Hardstem bulrush Perennial grass  
Solidago missouriensis var. missouriensis Missouri goldenrod Perennial herb  
Taraxacum officinale Red seeded dandelion Perennial herb 1
Thelypodium integrifolium ssp. integrifolium Entireleaved thelypody Perennial herb  
Thinopyrum intermedium Intermediate wheatgrass Perennial grass 1
Thinopyrum ponticum Tall wheatgrass Perennial grass 1
Tragopogon dubius Goat's beard Perennial herb  
Tragopogon porrifolius Salsify Perennial herb  
Tragopogon pratensis Meadow salsify Perennial herb  
Trifolium fragiferum Strawberry clover Perennial herb 6
Trifolium hybridum Alsike clover Perennial herb 4
Trifolium pratense Red clover Perennial herb 7
Trifolium repens White clover Perennial herb 9
Valeriana capitata Captiate valerian Perennial herb  
Verbascum blattaria Moth mullein Perennial herb 1
Verbascum thapsus ! Woolly mullein Perennial herb 3
Veronica alpina Alpine speedwell Perennial herb  
Veronica anagallis-aquatica Water speedwell Perennial herb  
Veronica catenata Chain speedwell Perennial herb  
Vicia americana ssp. minor Mat vetch Perennial herb, Vine  
Viola affinis Sand violet Perennial herb  
  Lifeform: Fern1 plant
Equisetum variegatum var. variegatum Variegated scouringrush Fern  
  Lifeform: Shrub19 plants
  Lifeform: Tree9 plants
 
Pink background indicates a plant is non-native.
! indicates a plant is potentially invasive.
NB: found in Lassen County is intended to indicate only plants found growing in the wild. However, the evidence is not always clear, and may occasionally include plants found in cultivation. To verify the wild presence of any particular plant in the list above, please click through to Calflora and look closely at the observations in this county.