Plantae > Tracheophyta > Magnoliopsida > Myrtales > Onagraceae > Chamaenerion angustifolium > Chamerion angustifolium angustifolium

Chamerion angustifolium angustifolium (Rosebay Willowherb)

Synonyms: Chamerion angustifolium var. angustifolium; Epilobium angustifolium angustifolium; Epilobium spicatum var. substenophyllum


Allergen Potential [1]  Medium
Bee Flower Color [2]  Blue
Flower Color [2]  Pink
Height [3]  4.92 feet (1.5 m)
Lifespan [3]  Perennial
Structure [5]  Herb
Light Preference [4]  Mostly Sunny
Soil Acidity [4]  Moderate Acid
Soil Fertility [4]  Rich
Soil Moisture [4]  Moist

Protected Areas

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Emblem of

Yukon Territory




Parasitized by 
Mompha raschkiella[8]
Podosphaera epilobii[9]
Pucciniastrum epilobii[9]
Shelter for 
Sylvia borin (Garden Warbler)[8]

External References

NatureServe Explorer


Attributes / relations provided by
1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
2Arnold SEJ, Faruq S, Savolainen V, McOwan PW, Chittka L, 2010 FReD: The Floral Reflectance Database — A Web Portal for Analyses of Flower Colour. PLoS ONE 5(12): e14287.
3PLANTATT - Attributes of British and Irish Plants: Status, Size, Life History, Geography and Habitats, M. O. Hill, C. D. Preston & D. B. Roy, Biological Records Centre, NERC Centre for Ecology and Hydrology (2004)
4Ellenberg, H., Weber, H.E., Dull, R., Wirth, V., Werner, W., Paulissen, D. (1991) Zeigerwerte von Pflanzen in Mitteleuropa. Scripta Geobotanica 18, 1–248
5Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
6Making The Forest And Tundra Wildlife Connection
7HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández
8Ecology of Commanster
9Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
10Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P. ScaleNet 4 November 2009
11Feeding Habits of Capybaras (Hydrochoerus hydrochaeris, Linnaeus 1766), in the Ecological Reserve of Taim (ESEC - Taim) - South of Brazil, Lucélia do Valle Borges and Ioni Gonçalves Colares, Brazilian Archives of Biology and Technology, Vol.50, n. 3 : pp.409-416 May 2007
12Exploring the Denali Food Web, ParkWise, National Park Service
13Food plants and feeding habits of Himalayan ungulates, Anjali Awasthi, Sanjay Kr. Uniyal, Gopal S. Rawat and S. Sathyakumar, CURRENT SCIENCE, VOL. 85, NO. 6, 25 SEPTEMBER 2003
14Tamias townsendii, Dallas A. Sutton, MAMMALIAN SPECIES No. 435, pp. 1-6 (1993)
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset accessed via on 2023-06-13; License: CC BY 4.0