Wildflowers Blooming in Arizona in May (47 Species)

47 wildflowers were recorded blooming in Arizona in May in our iNaturalist sample; 18 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 May

Saguaro704 obs.

New Mexico locust198 obs.

Winding Mariposa Lily102 obs.

Stinknet76 obs.

Ocotillo72 obs.

Desert Mariposa Lily68 obs.

Silverleaf Nightshade63 obs.

Blackfoot Daisy62 obs.

Sacred Datura60 obs.

Common Hoptree47 obs.

Desert Tobacco45 obs.

Trailing Windmills41 obs.

All wildflowers blooming in Arizona in May

#	Species	Scientific name	Family	Obs.	Peak in state
1	Saguaro	Carnegiea gigantea	cacti	704	May (peak)
2	New Mexico locust	Robinia neomexicana	Legumes	198	Jun (rising)
3	Winding Mariposa Lily	Calochortus flexuosus	lily family	102	Apr (past peak)
4	Stinknet	Oncosiphon pilulifer	Sunflowers, Daisies, Asters, and Allies	76	Apr (past peak)
5	Ocotillo	Fouquieria splendens	ocotillo family	72	Apr (past peak)
6	Desert Mariposa Lily	Calochortus kennedyi	lily family	68	Apr (past peak)
7	Silverleaf Nightshade	Solanum elaeagnifolium	nightshade family	63	Aug (rising)
8	Blackfoot Daisy	Melampodium leucanthum	Sunflowers, Daisies, Asters, and Allies	62	Apr (past peak)
9	Sacred Datura	Datura wrightii	nightshade family	60	May (peak)
10	Common Hoptree	Ptelea trifoliata	citrus family	47	May (peak)
11	Desert Tobacco	Nicotiana obtusifolia	nightshade family	45	Apr (past peak)
12	Trailing Windmills	Allionia incarnata	four o'clock family	41	Apr (past peak)
13	Field Bindweed	Convolvulus arvensis	bindweed family	39	Jun (rising)
14	Poison Hemlock	Conium maculatum	carrot family	38	May (peak)
15	Creosote Bush	Larrea tridentata	caltrops	36	Apr (past peak)
16	Desert Willow	Chilopsis linearis	bignonia family	35	May (peak)
17	California Barrel Cactus	Ferocactus cylindraceus	cacti	34	May (peak)
18	Antelopehorn Milkweed	Asclepias asperula	Dogbane Family	34	May (peak)
19	Desert Marigold	Baileya multiradiata	Sunflowers, Daisies, Asters, and Allies	34	Apr (past peak)
20	Snapdragon Vine	Maurandella antirrhiniflora	Plantain Family	33	Aug (rising)
21	Pointleaf Manzanita	Arctostaphylos pungens	heath family	30	Mar (past peak)
22	White Rhatany	Krameria bicolor	rhatany family	29	Apr (past peak)
23	Blue Elder	Sambucus cerulea	elder family	27	May (peak)
24	Redstem Stork's-bill	Erodium cicutarium	Geranium family	26	Mar (past peak)
25	California Buckwheat	Eriogonum fasciculatum	knotweed family	26	Apr (past peak)
26	Tree Tobacco	Nicotiana glauca	nightshade family	25	Apr (past peak)
27	Fendler's Sandmat	Euphorbia fendleri	Spurge Family	25	May (peak)
28	Bastard Toadflax	Comandra umbellata	sandalwood family	22	May (peak)
29	Brittlebush	Encelia farinosa	Sunflowers, Daisies, Asters, and Allies	20	Mar (past peak)
30	Notch-leaf Scorpionweed	Phacelia crenulata	borage family	19	Mar (past peak)
31	Apricot Globemallow	Sphaeralcea ambigua	Mallow and Hibiscus Family	18	Apr (past peak)
32	Virginia strawberry	Fragaria virginiana	rose family	17	May (peak)
33	Western Wallflower	Erysimum capitatum	mustard family	16	May (peak)
34	Rush Milkweed	Asclepias subulata	Dogbane Family	16	Apr (past peak)
35	Mexican palo verde	Parkinsonia aculeata	Legumes	16	May (peak)
36	Desert Chicory	Rafinesquia neomexicana	Sunflowers, Daisies, Asters, and Allies	16	Mar (past peak)
37	Canada Violet	Viola canadensis	Violet Family	16	May (peak)
38	Yellow Salsify	Tragopogon dubius	Sunflowers, Daisies, Asters, and Allies	15	May (peak)
39	Desert Trumpet	Eriogonum inflatum	knotweed family	15	May (peak)
40	Sweetbush	Bebbia juncea	Sunflowers, Daisies, Asters, and Allies	14	Apr (past peak)
41	Parish's Goldeneye	Bahiopsis parishii	Sunflowers, Daisies, Asters, and Allies	13	Apr (past peak)
42	Creeping Mahonia	Berberis repens	barberry family	13	Apr (past peak)
43	Rock Hibiscus	Hibiscus denudatus	Mallow and Hibiscus Family	12	Mar (past peak)
44	Cowpen Daisy	Verbesina encelioides	Sunflowers, Daisies, Asters, and Allies	12	Sep (rising)
45	Alkali Heliotrope	Heliotropium curassavicum	borage family	11	Mar (past peak)
46	Texas bindweed	Convolvulus equitans	bindweed family	11	May (peak)
47	Seep Monkeyflower	Erythranthe guttata	lopseed family	11	May (peak)