Lupinus shockleyi (purple desert lupine)

Plate 1 figs. a–h · 8 separate observations

Lupinus shockleyi, photographed by Leah Gardner — fig. a Leah Gardner, CC0 1.0 / 2022-04-17 / obs. 188873458

Lupinus shockleyi, photographed by Kate Harper — fig. b Kate Harper, CC0 1.0 / obs. 29875912

Lupinus shockleyi, photographed by Jesse Rorabaugh — fig. c Jesse Rorabaugh, CC0 1.0 / obs. 6987539

Lupinus shockleyi, photographed by Matt Berger — fig. d Matt Berger, CC BY 4.0 / obs. 199137163

Lupinus shockleyi, photographed by Ken-ichi Ueda — fig. h Ken-ichi Ueda, CC BY 4.0 / obs. 6613382

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 3 botanical countries

Native distribution of Lupinus shockleyi, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.

Region	TDWG code	Continent
Arizona	ARI	NORTHERN AMERICA
California	CAL
Nevada	NEV

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 148 in flower of 341 examined

11%

52%

97%

100%

Proportion of examined Lupinus shockleyi in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	1	14	7%	1% to 31%
Feb	14	129	11%	7% to 17%
Mar	67	129	52%	43% to 60%
Apr	61	63	97%	89% to 99%
May	5	5	100%	57% to 100%
Jun	0	1	too few examined
Jul	0	0	too few examined
Aug	0	0	too few examined
Sep	0	0	too few examined
Oct	0	0	too few examined
Nov	0	0	too few examined
Dec	0	0	too few examined

Peak flowering in May. Each bar is the share of Lupinus shockleyi observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 148 of 341 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.