Water Pepper

Persicaria hydropiperoides

Water Smartweed

Persicaria punctata

Douglas' Knotweed

Polygonum douglasii

Canaigre

Rumex hymenosepalus

Willow Dock

Rumex salicifolius

Western Bistort

Bistorta bistortoides

Shrubby Cinquefoil

Dasiphora fruticosa

Sticky Cinquefoil

Drymocallis glandulosa

Sticky Cinquefoil

Drymocallis glandulosa var. glandulosa

Sticky Cinquefoil

Drymocallis pseudorupestris

Swamp Knotweed

Persicaria amphibia

Willow Weed

Persicaria lapathifolia

Mrs. Austin's Knotweed

Polygonum austiniae

Bidwell's Knotweed

Polygonum bidwelliae

Bolander's Knotweed

Polygonum bolanderi

California Knotweed

Polygonum californicum

Scotts Valley Polygonum

Polygonum hickmanii

Wiry Knotweed

Polygonum majus

Marin Knotweed

Polygonum marinense

Broadleaf Knotweed

Polygonum minimum

Beach Knotweed

Polygonum paronychia

Parry's

Polygonum parryi

Milkwort Knotweed

Polygonum polygaloides

Fruitleaf Knotweed

Polygonum polygaloides ssp. confertiflorum

Modoc County Knotweed

Polygonum polygaloides ssp. esotericum

Kellogg's Knotweed

Polygonum polygaloides ssp. kelloggii

Bushy Knotweed

Polygonum ramosissimum

Bushy Knotweed

Polygonum ramosissimum ssp. ramosissimum

Polygonum sawatchense

Polygonum sawatchense ssp. oblivium

Polygonum sawatchense ssp. sawatchense

Shasta Knotweed

Polygonum shastense

Spurry Knotweed

Polygonum spergulariiforme

Silverweed

Potentilla anserina

Common Silverweed

Potentilla anserina ssp. anserina

Pacific Potentilla

Potentilla anserina ssp. pacifica

Biennial Cinquefoil

Potentilla biennis

Brewer's Cinquefoil

Potentilla breweri

Bruce's Cinquefoil

Potentilla bruceae

Crested Potentilla

Potentilla cristae

Drummond's Cinquefoil

Potentilla drummondii

Fan-foil

Potentilla flabellifolia

Varileaf Cinquefoil

Potentilla glaucophylla

Blueleaf Cinquefoil

Potentilla glaucophylla var. glaucophylla

Slender Cinquefoil

Potentilla gracilis

Potentilla gracilis var. elmeri

Slender Cinquefoil

Potentilla gracilis var. fastigiata

Slender Cinquefoil

Potentilla gracilis var. flabelliformis

Graceful Cinquefoil

Potentilla gracilis var. gracilis

Gray's Cinquefoil

Potentilla grayi

Hickman's Cinquefoil

Potentilla hickmanii

Jepson's Cinquefoil

Potentilla jepsonii

Feather Cinquefoil

Potentilla millefolia

Morefield's Cinquefoil

Potentilla morefieldii

Newberry's Cinquefoil

Potentilla newberryi

Prairie Cinquefoil

Potentilla pensylvanica

Mono Cinquefoil

Potentilla pseudosericea

Cliff Cinquefoil

Potentilla rimicola

Brook

Potentilla rivalis

Cunningham Marsh Cinquefoil

Potentilla uliginosa