Verbascum densiflorumBertol.

denseflower mulleindenseflowered mullein

WFO wfo-0000420566 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Verbascum densiflorum, photographed by Pavel Kacl
fig. a Pavel Kacl, CC BY 4.0 / 2021-07-25 / obs. 146469574
Verbascum densiflorum, photographed by Michel Langeveld
fig. b Michel Langeveld, CC BY 4.0 / obs. 138285122
Verbascum densiflorum, photographed by Christian Berg
fig. c Christian Berg, CC BY 4.0 / obs. 92410533
Verbascum densiflorum, photographed by Alexis Tinker-Tsavalas
fig. d Alexis Tinker-Tsavalas, CC BY 4.0 / obs. 82193669
Verbascum densiflorum, photographed by Jason Grant
fig. e Jason Grant, CC BY 4.0 / obs. 82114218
Verbascum densiflorum, photographed by Pavel Kacl
fig. f Pavel Kacl, CC BY 4.0 / obs. 79338091
Verbascum densiflorum, photographed by Михаил Орлов
fig. g Михаил Орлов, CC BY 4.0 / obs. 71625597
Verbascum densiflorum, photographed by Pavel Kacl
fig. h Pavel Kacl, CC BY 4.0 / obs. 54800154

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 25 botanical countries

Regions where Verbascum densiflorum is native: North Caucasus, Albania, Austria, Belarus, Belgium, Bulgaria, Central European Russia, Czechia-Slovakia, Denmark, France, Germany, Greece, Italy, Krym, Netherlands, NW. Balkan Pen., Poland, Romania, Sicilia, South European Russia, Spain, Sweden, Switzerland, Türkiye-in-Europe, Ukraine North CaucasusAlbaniaAustriaBelarusBelgiumBulgariaCentral European RussiaCzechia-SlovakiaDenmarkFranceGermanyGreeceItalyKrymNetherlandsNW. Balkan Pen.PolandRomaniaSiciliaSouth European RussiaSpainSwedenSwitzerlandTürkiye-in-EuropeUkraine
Native distribution of Verbascum densiflorum, 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.
RegionTDWG codeContinent
Albania ALB EUROPE
Austria AUT
Belarus BLR
Belgium BGM
Bulgaria BUL
Central European Russia RUC
Czechia-Slovakia CZE
Denmark DEN
France FRA
Germany GER
Greece GRC
Italy ITA
Krym KRY
Netherlands NET
NW. Balkan Pen. YUG
Poland POL
Romania ROM
Sicilia SIC
South European Russia RUS
Spain SPA
Sweden SWE
Switzerland SWI
Türkiye-in-Europe TUE
Ukraine UKR
North Caucasus NCS ASIA-TEMPERATE

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 161 in flower of 172 examined

Peak flowering in Sep. Each bar is the share of Verbascum densiflorum 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. 161 of 172 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 6 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.

Also published as 19 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Verbascum bicolle Schrank
  • Verbascum cuspidatum Schrad.
  • Verbascum floccosum var. gymnostemon (Franch.) Rouy
  • Verbascum macrantherum Halácsy
  • Verbascum messanense Tineo
  • Verbascum phlomoides subsp. thapsiforme Rouy
  • Verbascum phlomoides subsp. thapsiforme (Schrad.) Čelak.
  • Verbascum phlomoides var. cuspidatum (Schrad.) Wirtg.
  • Verbascum phlomoides var. cuspidatum (Schrad.) Alef.
  • Verbascum phlomoides var. gymnostemon Franch.
  • Verbascum phlomoides var. thapsiforme (Schrad.) P.Fourn.
  • Verbascum thapsiforme Schrad.
  • Verbascum thapsiforme subsp. cuspidatum (Schrad.) Arcang.
  • Verbascum thapsiforme subsp. densiflorum (Bertol.) Nyman
  • Verbascum thapsiforme var. bicolle (Schrank) Gaudin
  • Verbascum thapsiforme var. laxum Klett & Richt.
  • Verbascum thapsiforme var. thapsonigrum Gaudin
  • Verbascum thapsus var. thapsiforme (Schrad.) Wahlenb.
  • Verbascum velenovskyi Horák

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. 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.