Wildflowers Blooming in Oregon in August (60 Species)

60 wildflowers were recorded blooming in Oregon in August in our iNaturalist sample; 9 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Top wildflowers in August

Fireweed398 obs.

Pearly Everlasting275 obs.

Lewis' monkeyflower177 obs.

Pipsissewa163 obs.

Scouler's Harebell157 obs.

Wild Carrot134 obs.

Subalpine Mariposa Lily113 obs.

Bull Thistle112 obs.

Ragwort109 obs.

Pacific Bleeding Heart93 obs.

Rose Spirea91 obs.

Common Madia87 obs.

All wildflowers blooming in Oregon in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Fireweed	Chamaenerion angustifolium	evening primrose family	398	Jul (past peak)
2	Pearly Everlasting	Anaphalis margaritacea	Sunflowers, Daisies, Asters, and Allies	275	Aug (peak)
3	Lewis' monkeyflower	Erythranthe lewisii	lopseed family	177	Aug (peak)
4	Pipsissewa	Chimaphila umbellata	heath family	163	Jul (past peak)
5	Scouler's Harebell	Campanula scouleri	bellflower family	157	Jul (past peak)
6	Wild Carrot	Daucus carota	carrot family	134	Jul (past peak)
7	Subalpine Mariposa Lily	Calochortus subalpinus	lily family	113	Jul (past peak)
8	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	112	Aug (peak)
9	Ragwort	Jacobaea vulgaris	Sunflowers, Daisies, Asters, and Allies	109	Jul (past peak)
10	Pacific Bleeding Heart	Dicentra formosa	Poppy Family	93	Apr (past peak)
11	Rose Spirea	Spiraea douglasii	rose family	91	Jul (past peak)
12	Common Madia	Madia elegans	Sunflowers, Daisies, Asters, and Allies	87	Jul (past peak)
13	Mountain Bog Gentian	Gentiana calycosa	gentian family	78	Aug (peak)
14	Broad-Leaved Sweet Pea	Lathyrus latifolius	Legumes	77	Jul (past peak)
15	Fringed Grass of Parnassus	Parnassia fimbriata	staff-vine family	76	Aug (peak)
16	Pennyroyal	Mentha pulegium	Mint Family	74	Jul (past peak)
17	Threeleaf Foamflower	Tiarella trifoliata	saxifrage family	72	Jul (past peak)
18	Chicory	Cichorium intybus	Sunflowers, Daisies, Asters, and Allies	67	Jul (past peak)
19	Common Jewelweed	Impatiens capensis	balsam family	65	Aug (peak)
20	Narrowleaf Milkweed	Asclepias fascicularis	Dogbane Family	64	Jul (past peak)
21	Common St. John's Wort	Hypericum perforatum	St. John's wort family	63	Jul (past peak)
22	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	62	Jun (past peak)
23	Creeping Thistle	Cirsium arvense	Sunflowers, Daisies, Asters, and Allies	62	Jul (past peak)
24	Western Columbine	Aquilegia formosa	buttercup family	61	May (past peak)
25	Purple Foxglove	Digitalis purpurea	Plantain Family	58	Jun (past peak)
26	Bittersweet Nightshade	Solanum dulcamara	nightshade family	55	Jul (past peak)
27	Common Tansy	Tanacetum vulgare	Sunflowers, Daisies, Asters, and Allies	53	Aug (peak)
28	Field Bindweed	Convolvulus arvensis	bindweed family	51	Jun (past peak)
29	Common Selfheal	Prunella vulgaris	Mint Family	47	Jun (past peak)
30	Rubber Rabbitbrush	Ericameria nauseosa	Sunflowers, Daisies, Asters, and Allies	46	Sep (rising)
31	Candy Flower	Claytonia sibirica	Pussypaw Family	45	Apr (past peak)
32	Sagebrush Mariposa Lily	Calochortus macrocarpus	lily family	45	Jul (past peak)
33	Wild Teasel	Dipsacus fullonum	honeysuckle family	44	Jul (past peak)
34	Purple Loosestrife	Lythrum salicaria	lythrum family	44	Aug (peak)
35	Red Clover	Trifolium pratense	Legumes	40	May (past peak)
36	Ocean spray	Holodiscus discolor	rose family	40	Jul (past peak)
37	California poppy	Eschscholzia californica	Poppy Family	39	May (past peak)
38	Western Harebell	Campanula petiolata	bellflower family	39	Jul (past peak)
39	Herb Robert	Geranium robertianum	Geranium family	38	May (past peak)
40	Sulfur Buckwheat	Eriogonum umbellatum	knotweed family	36	Jun (past peak)
41	European Searocket	Cakile maritima	mustard family	34	Oct (rising)
42	Lawn daisy	Bellis perennis	Sunflowers, Daisies, Asters, and Allies	33	Apr (past peak)
43	Ghost Pipe	Monotropa uniflora	heath family	32	Jul (past peak)
44	Scarlet Gilia	Ipomopsis aggregata	phlox family	32	Jul (past peak)
45	White Mariposa Lily	Calochortus eurycarpus	lily family	31	Jul (past peak)
46	Common Snowberry	Symphoricarpos albus	honeysuckle family	30	Jun (past peak)
47	Moth Mullein	Verbascum blattaria	figwort family	28	Jun (past peak)
48	Common Cat's-ear	Hypochaeris radicata	Sunflowers, Daisies, Asters, and Allies	27	Jun (past peak)
49	Showy Milkweed	Asclepias speciosa	Dogbane Family	27	Jun (past peak)
50	Common Soapwort	Saponaria officinalis	pink family	24	Aug (peak)