Wildflowers Blooming in Arizona in August (44 Species)

44 wildflowers were recorded blooming in Arizona in August in our iNaturalist sample; 16 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

Silverleaf Nightshade137 obs.

Rocky Mountain Beeplant80 obs.

Sacred Datura58 obs.

Trailing Windmills51 obs.

Creosote Bush39 obs.

Saguaro38 obs.

Snapdragon Vine38 obs.

White Rhatany36 obs.

Desert Tobacco24 obs.

Great Mullein23 obs.

Puncture Vine23 obs.

Plains Coreopsis23 obs.

All wildflowers blooming in Arizona in August

#	Species	Scientific name	Family	Obs.	Peak in state
1	Silverleaf Nightshade	Solanum elaeagnifolium	nightshade family	137	Aug (peak)
2	Rocky Mountain Beeplant	Cleomella serrulata	Spider Flower Family	80	Aug (peak)
3	Sacred Datura	Datura wrightii	nightshade family	58	May (past peak)
4	Trailing Windmills	Allionia incarnata	four o'clock family	51	Apr (past peak)
5	Creosote Bush	Larrea tridentata	caltrops	39	Apr (past peak)
6	Saguaro	Carnegiea gigantea	cacti	38	May (past peak)
7	Snapdragon Vine	Maurandella antirrhiniflora	Plantain Family	38	Aug (peak)
8	White Rhatany	Krameria bicolor	rhatany family	36	Apr (past peak)
9	Desert Tobacco	Nicotiana obtusifolia	nightshade family	24	Apr (past peak)
10	Great Mullein	Verbascum thapsus	figwort family	23	Aug (peak)
11	Puncture Vine	Tribulus terrestris	caltrops	23	Aug (peak)
12	Plains Coreopsis	Coreopsis tinctoria	Sunflowers, Daisies, Asters, and Allies	23	Jul (past peak)
13	Whitemouth Dayflower	Commelina erecta	Spiderworts	22	Aug (peak)
14	Field Bindweed	Convolvulus arvensis	bindweed family	19	Jun (past peak)
15	Richardson's geranium	Geranium richardsonii	Geranium family	19	Aug (peak)
16	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	18	Jul (past peak)
17	Cardinal Catchfly	Silene laciniata	pink family	18	Aug (peak)
18	Chinchweed	Pectis papposa	Sunflowers, Daisies, Asters, and Allies	18	Oct (rising)
19	California Barrel Cactus	Ferocactus cylindraceus	cacti	17	May (past peak)
20	Rock Hibiscus	Hibiscus denudatus	Mallow and Hibiscus Family	17	Mar (past peak)
21	Desert Willow	Chilopsis linearis	bignonia family	15	May (past peak)
22	New Mexico locust	Robinia neomexicana	Legumes	15	Jun (past peak)
23	Pigeonberry	Rivina humilis	Petiveria Family	15	Aug (peak)
24	Pointleaf Manzanita	Arctostaphylos pungens	heath family	13	Mar (past peak)
25	Desert Thorn-Apple	Datura discolor	nightshade family	13	Oct (rising)
26	Fendler's Sandmat	Euphorbia fendleri	Spurge Family	13	May (past peak)
27	Fireweed	Chamaenerion angustifolium	evening primrose family	13	Jul (past peak)
28	Butterfly Milkweed	Asclepias tuberosa	Dogbane Family	12	Jun (past peak)
29	Mule Fat	Baccharis salicifolia	Sunflowers, Daisies, Asters, and Allies	12	Aug (peak)
30	Nodding Onion	Allium cernuum	amaryllis, onions, and allies	12	Aug (peak)
31	Edible Valerian	Valeriana edulis	honeysuckle family	12	Jul (past peak)
32	Cardinal Flower	Lobelia cardinalis	bellflower family	11	Sep (rising)
33	Common Purslane	Portulaca oleracea	purslane family	11	Aug (peak)
34	Pinesap	Monotropa hypopitys	heath family	11	Aug (peak)
35	Sweetbush	Bebbia juncea	Sunflowers, Daisies, Asters, and Allies	11	Apr (past peak)
36	Texas bindweed	Convolvulus equitans	bindweed family	11	May (past peak)
37	Desert Marigold	Baileya multiradiata	Sunflowers, Daisies, Asters, and Allies	10	Apr (past peak)
38	Upright Prairie Coneflower	Ratibida columnifera	Sunflowers, Daisies, Asters, and Allies	10	Jul (past peak)
39	Cowpen Daisy	Verbesina encelioides	Sunflowers, Daisies, Asters, and Allies	10	Sep (rising)
40	Scarlet Gilia	Ipomopsis aggregata	phlox family	9	Aug (peak)
41	Common Sunflower	Helianthus annuus	Sunflowers, Daisies, Asters, and Allies	9	Sep (rising)
42	Buffalo-Bur	Solanum rostratum	nightshade family	9	Jul (past peak)
43	Tall Evening Primrose	Oenothera elata	evening primrose family	8	Aug (peak)
44	Bull Thistle	Cirsium vulgare	Sunflowers, Daisies, Asters, and Allies	8	Aug (peak)