Wildflowers of Western USA
Plants > Wildflowers
There are thousands of species of
wildflowers and flowering shrubs in western USA, divided into several hundred genera; many look similar and others exist as subspecies and varieties, so identification can often be problematic.
Color is the most recognizable characteristic, together with location and habitat; other factors include flower symmetry, cluster shape, leaf shape, leaf edges, leaf arrangement, and the shape/texture of the bracts (the supporting structures between flower head and flower stem). Although less easy to detect, the shape and color of the seeds are also important for identification.
The wide range of habitats, from the low deserts and the Pacific coastline up to the tundra zone of the high mountain ranges, is the main reason for the great diversity, and ensures that flowers are in bloom all through the year, though peak times range from early spring in the hottest deserts to late summer in the mountains.
Descriptions of a selection of the more common Western wildflowers are given below, arranged by plant family and flower color. 1670 species are currently included, concentrated in the Great Basin, other desert regions and the Four Corners states, but extending to California, Oregon, Wyoming and Texas.
List by Family
List by Flower Color
Updates
30 Oct 2024 -
241 new photos for existing species
24 May 2024 -
30 new species
13 May 2024 -
354 new photos for existing species
6 September 2022 -
32 new species
31 August 2022 -
378 new photos for existing species
22 March 2022 -
57 new species
4 March 2022 -
205 new photos for existing species
2 December 2021 -
17 new species
1 December 2021 -
81 new photos for existing species
27 November 2019 -
175 new species
25 September 2019 -
529 new photos for existing species
22 May 2018 -
25 new species
27 April 2018 -
136 new photos for existing species
25 July 2017 -
120 new species
29 May 2017 -
413 new photos for existing species
4 November 2016 -
172 new species
6 September 2016 -
579 new photos for existing species
5 July 2016 -
17 new species
13 June 2016 -
42 new species