Penstemon virens (Front Range beardtongue)

Plate 1 figs. a–h · 8 separate observations

Penstemon virens, photographed by Shalana Gray — fig. a Shalana Gray, CC BY 4.0 / 2022-05-29 / obs. 201713674

Penstemon virens, photographed by Alaina Krakowiak — fig. d Alaina Krakowiak, CC BY 4.0 / obs. 197701848

Penstemon virens, photographed by Reid Hardin — fig. e Reid Hardin, CC BY 4.0 / obs. 145053959

Penstemon virens, photographed by Rachel Stringham — fig. f Rachel Stringham, CC BY 4.0 / obs. 149330875

Penstemon virens, photographed by Mike Duran — fig. g Mike Duran, CC BY 4.0 / obs. 149680930

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 2 botanical countries

Native distribution of Penstemon virens, 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
Colorado	COL	NORTHERN AMERICA
Wyoming	WYO

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 221 in flower of 250 examined

38%

94%

97%

87%

57%

Proportion of examined Penstemon virens in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	0	too few examined
Feb	0	1	too few examined
Mar	0	0	too few examined
Apr	5	13	38%	18% to 64%
May	62	66	94%	85% to 98%
Jun	124	128	97%	92% to 99%
Jul	26	30	87%	70% to 95%
Aug	4	7	57%	25% to 84%
Sep	0	1	too few examined
Oct	0	0	too few examined
Nov	0	2	too few examined
Dec	0	2	too few examined

Peak flowering in Jun. Each bar is the share of Penstemon virens 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. 221 of 250 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.