PlantQuest Species List for Pierce County, Washington

Scientific Name
(* = Introduced)		 Family Common Name Habitat Bloom Period
Abutilon theophrasti * Malvaceae velvetleaf shrub-steppe; disturbed areas Jul, Aug
Alliaria petiolata * Brassicaceae garlic mustard western forest; disturbed areas Apr, May, Jun
Anthriscus sylvestris * Apiaceae wild chervil disturbed areas May, Jun, Jul
Arbutus unedo * Ericaceae strawberry tree disturbed areas Apr, May, Jun, Jul, Aug, Sep
Arum italicum * Araceae Italian lords and ladies; orange candleflower western forest; disturbed areas Apr, May, Jun
Arum italicum ssp. italicum * Araceae Italian lords and ladies; Italian arum western forest; disturbed areas Apr, May, Jun
Cardamine pratensis * Brassicaceae cuckooflower disturbed areas Apr, May
Carex pendula * Cyperaceae pendulous sedge western forest; freshwater; disturbed areas May, Jun, Jul, Aug, Sep
Carex sylvatica * Cyperaceae European woodland sedge freshwater; disturbed areas May, Jun, Jul
Carex unilateralis Cyperaceae one-sided sedge freshwater May, Jun, Jul
Castanea sativa * Fagaceae European chestnut; Spanish chestnut; sweet chestnut western forest; disturbed areas Apr, May, Jun
Claytonia washingtoniana Montiaceae Lake Washington claytonia; Lake Washington miner's lettuce; Lake Washington springbeauty western forest; prairie or bald Mar, Apr, May, Jun, Nov-Feb
Coptis laciniata Ranunculaceae Oregon goldthread western forest May, Jun, Jul, Aug
Cortaderia selloana * Poaceae pampas grass saltwater shores; disturbed areas May, Jun, Jul
Corylus avellana * Betulaceae common filbert; European hazelnut western forest; disturbed areas Mar, Nov-Feb
Cotoneaster gamblei * Rosaceae Gamble's cotoneaster
Cotoneaster horizontalis * Rosaceae rock cotoneaster; rockspray cotoneaster; wall cotoneaster western forest; prairie or bald; disturbed areas May, Jun
Cyperus eragrostis * Cyperaceae tall flatsedge freshwater; disturbed areas Jun, Jul, Aug
Drosera anglica Droseraceae English sundew; giant sundew freshwater Jun, Jul, Aug
Dysphania ambrosioides * Amaranthaceae Mexican tea; wormseed shrub-steppe; freshwater; disturbed areas Jul, Aug, Sep, Oct, Nov-Feb
Enemion hallii Ranunculaceae Willamette false rue-anemone freshwater Jun, Jul
Euphorbia serrulata * Euphorbiaceae upright spurge disturbed areas May, Jun, Jul
Heracleum mantegazzianum * Apiaceae giant hogweed disturbed areas Jun, Jul
Hieracium sabaudum * Asteraceae savoy hawkweed; autumn hawkweed prairie or bald; disturbed areas Jun, Jul, Aug
Juncus effusus ssp. solutus * Juncaceae eastern soft rush
Lathyrus vestitus var. ochropetalus Fabaceae Pacific peavine
Lonicera periclymenum * Caprifoliaceae woodbine western forest; disturbed areas May, Jun, Jul
Lycopus europaeus * Lamiaceae European water-horehound freshwater; disturbed areas Jun, Jul, Aug
Lysimachia vulgaris * Primulaceae garden yellow-loosestrife freshwater; disturbed areas Jun, Jul, Aug
Malus dawsoniana * Rosaceae Dawson apple western forest; disturbed areas Apr, May
Montia howellii Montiaceae Howell's montia western forest; prairie or bald; freshwater Apr, May
Myrica gale Myricaceae sweetgale freshwater Apr, May, Jun
Oxybasis macrosperma * Amaranthaceae large seed goosefoot disturbed areas Jun, Jul, Aug
Petasites japonicus * Asteraceae Japanese sweet coltsfoot western forest; freshwater; disturbed areas
Ranunculus sceleratus Ranunculaceae blister buttercup; celery-leaved buttercup; celery-leaved crowfoot freshwater Mar, Apr, May, Jun, Jul, Aug, Sep
Rosa multiflora * Rosaceae multiflora rose; rambler rose western forest; shrub-steppe; freshwater; disturbed areas Apr, May, Jun
Sagittaria latifolia Alismataceae common arrowhead; duck potato; wapato freshwater Jul, Aug, Sep
Sagittaria platyphylla * Alismataceae delta arrowhead freshwater Jun, Jul, Aug
Sanicula crassicaulis var. tripartita Apiaceae Pacific sanicle May, Jun
Sedum acre * Crassulaceae mossy stonecrop prairie or bald; disturbed areas Jun, Jul, Aug
Sedum thartii * Crassulaceae Thart's stonecrop prairie or bald; disturbed areas Jun, Jul, Aug
Senecio viscosus * Asteraceae sticky ragwort western forest; disturbed areas Jun, Jul, Aug, Sep
Silene gallica * Caryophyllaceae windmill pink prairie or bald; disturbed areas May, Jun, Jul
Solanum rostratum * Solanaceae buffalo bur; horned nightshade disturbed areas Jun, Jul, Aug, Sep
Trifolium variegatum Fabaceae white-tip clover western forest; eastern forest; prairie or bald; shrub-steppe; freshwater Apr, May, Jun, Jul
Wyethia angustifolia Asteraceae narrowleaf mule's ears; narrowleaf wyethia eastern forest; shrub-steppe May, Jun, Jul

Generated on 2025-03-15.   Data from Consortium of PNW Herbaria and Burke Herbarium Image Collection.

More information on the PlantQuest Image Project can be found at https://burkeherbarium.org/imagecollection/plantquest.php.