PlantQuest Species List for Island County, Washington

Scientific Name
(* = Introduced)		 Family Common Name Habitat Bloom Period
Acer glabrum var. douglasii Sapindaceae Douglas maple Apr, May, Jun
Achnatherum lemmonii ssp. lemmonii Poaceae May, Jun
Acmispon denticulatus Fabaceae riverbar bird's-foot-trefoil eastern forest; shrub-steppe Apr, May, Jun
Arctostaphylos columbiana Ericaceae bristly manzanita western forest; prairie or bald May, Jun, Jul
Bromus sitchensis var. sitchensis Poaceae Sitka brome
Bromus vulgaris Poaceae Columbian brome western forest; eastern forest Jun, Jul, Aug
Carex exsiccata Cyperaceae big inflated sedge freshwater Jun, Jul, Aug, Sep
Carex subbracteata * Cyperaceae small-bracted sedge freshwater; disturbed areas May, Jun, Jul
Carex zikae Cyperaceae short-stemmed sedge; Zika's sedge prairie or bald; freshwater
Castilleja victoriae Orobanchaceae Victoria's paintbrush prairie or bald May, Jun
Clarkia amoena Onagraceae farewell-to-spring prairie or bald May, Jun, Jul
Crataegus gaylussacia Rosaceae huckleberry hawthorn; Suksdorf's hawthorn western forest; eastern forest; prairie or bald; shrub-steppe Apr, May, Jun
Cryptogramma acrostichoides Pteridaceae American parsley-fern; American rock-brake western forest; eastern forest; subalpine or alpine [no flowers]
Elymus trachycaulus ssp. trachycaulus Poaceae bearded wheatgrass Jun, Jul, Aug
Epipactis helleborine * Orchidaceae broad-leaved helleborine; garden helleborine freshwater; disturbed areas Jun, Jul, Aug, Sep, Oct
Erodium cicutarium ssp. cicutarium * Geraniaceae redstem stork's-bill
Fragaria virginiana ssp. glauca Rosaceae blueleaf strawberry; broadpetal strawberry; wild strawberry May, Jun, Jul, Aug
Gamochaeta ustulata Asteraceae purple cudweed; spoon-leaf cudweed prairie or bald; disturbed areas Apr, May, Jun, Jul, Aug, Sep, Oct
Hordeum murinum ssp. leporinum * Poaceae mouse barley May, Jun, Jul
Lilium columbianum Liliaceae Columbia lily western forest; eastern forest; subalpine or alpine; shrub-steppe May, Jun, Jul, Aug
Malus domestica * Rosaceae cultivated apple; orchard apple disturbed areas Apr, May, Jun
Medicago arabica * Fabaceae spotted medic disturbed areas Apr, May, Jun, Jul
Moehringia macrophylla Caryophyllaceae large-leaf sandwort western forest; eastern forest May, Jun, Jul, Aug
Oxytropis campestris var. spicata Fabaceae yellow-flowered crazyweed; yellow-flowered locoweed
Packera macounii Asteraceae Puget butterweed; long-rayed groundsel; Macoun's groundsel; Siskiyou Mountain ragwort western forest May, Jun, Jul
Petroselinum crispum * Apiaceae parsley disturbed areas Apr, May, Jun, Jul
Plagiobothrys cusickii Boraginaceae matted popcorn-flower eastern forest; shrub-steppe; freshwater May, Jun, Jul
Plantago elongata Plantaginaceae prairie or bald; saltwater shores Apr, May, Jun
Platanthera unalascensis Orchidaceae Alaska rein-orchid western forest; eastern forest; subalpine or alpine; prairie or bald Jun, Jul, Aug
Poa compressa * Poaceae flat-stem bluegrass disturbed areas Jun, Jul, Aug
Poa secunda ssp. secunda Poaceae curly blue grass subalpine or alpine; shrub-steppe; saltwater shores May, Jun, Jul, Aug, Sep
Polygonum aviculare ssp. buxiforme * Polygonaceae American knotweed; prairie knotweed
Potamogeton obtusifolius Potamogetonaceae blunt-leaved pondweed freshwater Jun, Jul, Aug
Quercus garryana var. garryana Fagaceae Garry oak; Oregon white oak
Ranunculus californicus Ranunculaceae California buttercup prairie or bald Apr, May, Jun
Rumex salicifolius var. transitorius Polygonaceae narrow-leaved dock; Pacific willow dock prairie or bald; saltwater shores May, Jun, Jul
Saxifraga austromontana Saxifragaceae matted saxifrage; spotted saxifrage western forest; eastern forest; subalpine or alpine Jun, Jul, Aug
Sedum lanceolatum Crassulaceae lance-leaved stonecrop eastern forest; subalpine or alpine; prairie or bald; shrub-steppe May, Jun, Jul, Aug
Sherardia arvensis * Rubiaceae blue field-madder prairie or bald; disturbed areas Apr, May, Jun, Jul
Sorbus intermedia * Rosaceae Swedish whitebeam
Spergularia macrotheca var. macrotheca Caryophyllaceae beach sandspurry prairie or bald; saltwater shores Jun, Jul, Aug, Sep
Stellaria sitchana Caryophyllaceae Sitka starwort western forest; eastern forest; freshwater May, Jun, Jul, Aug
Trifolium dichotomum Fabaceae branched clover prairie or bald Apr, May, Jun
Woodsia scopulina ssp. laurentiana Woodsiaceae Laurentian cliff fern

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.