Honey bees
Nectar value
Low
Pollen value
Low
Pollinator plant
denseflower willowherb
Boisduvalia densiflora
Pollinator recipe
Plant photos
1 photo · Select to enlarge
A stand of flowering Boisduvalia densiflora.
Michael Wolf / Wikimedia Commons / CC BY-SA 3.0
Photo details
Resized and converted to WebP. No content edits.
Source: File:Boisduvalia densiflora.jpg
Reviewed . The actual photograph, source identification and reuse license were reviewed. The image illustrates the source-identified plant; it does not verify measurements or pollinator ratings.
Common names
1 name · 1 language- EnglishYour language
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- denseflower willowherb
Sources & name notes
Names recorded in our plant catalogue, grouped by language. Usage can vary by region.
Catalogue language labels are reviewed separately from botanical source records.
Plant references
Source-backed information
Published observations for this plant. Each reference supports the information beside it.
- Botanical family
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Onagraceae
The complete-name usages checked in Catalogue of Life agree on this family; authorship and accepted-name identity remain unresolved.
Sources [1] - Native range
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British Columbia (S. Vancouver I.), Oregon, California, Mexico (Baja California Norte).
Explicit native locality records in Kew WCVP v16; introduced and doubtful distributions excluded. Continent conversion follows the documented geographic mapping.
Sources [2]
Catalogue ratings
Who this plant supports
Plant profile
About this plant
denseflower willowherb (Boisduvalia densiflora) is a herbaceous plant. It flowers from July to September.
Sources and references
References for the information marked with source numbers on this page.
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Catalogue of Life
Epilobium densiflorum — Catalogue of Life COL26.8
COL26.8 (2026-08-20). Contributing checklist: Synonymic Checklists of the Vascular Plants of the World. This is taxonomic evidence, not an independent ecological study.
Supports: Botanical familyRelevant sections
- Botanical family: NameUsage.tsv line 2113941; ID 6FSXT; rank species; status accepted
Source checked on .
Source data licence: CC BY 4.0.
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Royal Botanic Gardens, Kew
Epilobium densiflorum — Kew WCVP native distribution
Native distribution and taxonomic treatment from the official WCVP v16 export (4 June 2026). The link opens the corresponding POWO taxon. Source rows are retained in the native-range audit archive.
Supports: Native rangeRelevant sections
- Native range: WCVP v16; wcvp_names.csv lines 1383455, 1383456; wcvp_distribution.csv native locality lines 1361960, 1361961, 1361962, 1361963, 1361964, 1361965, 1361966, 1361967, 1361968, 1361969
Source checked on .
Source data licence: CC BY 3.0.