Scientific name:

Geum urbanum

Vernacular name:

Avens, Wood

Use the links below to jump to previous and next taxa in a text browser:
Geum rivale - Avens, Water
Geum macrophyllum - Avens, Large-leaved

Wood Avens

Scientific name: Geum urbanum L.

Diagnostic features
Stems to 70cm, erect or spreading.
Stipules 1-3cm.
Flowers erect, with patent, yellow petals 4-7mm.
Achenes in sessile globose head, with style glabrous or sometimes with glands near base.
Receptacle with dense long hairs.

Chromosome number: 2n=42.

Habitat
Native; woods and hedgerows.

Distribution
Common throughout British Isles except far North.

This species is keyed out on Page 2283 in the Text Key.

Hybrids
- Geum x intermedium Ehrh. (= Geum rivale x Geum urbanum) is common wherever the parents meet. It is intermediate in all respects and highly fertile, forming a complete spectrum between the parents.

Geum urbanum L.

Wood Avens (English)
Avens, Wood [English]

Hybrids
Geum intermedium(x) Ehrh. [Hybrid]
(= Geum rivale x Geum urbanum)

Geum intermedium(x) 2 (Flowering habit, (= G. rivale x G. urbanum) picture taken by C.A. Stace)
Geum intermedium(x) 3 (Flowering, (= G. rivale x G. urbanum), picture taken in Sweden by R. van der Meijden)
Geum urbanum 2 (Flowering habit, picture taken in Leics by C.A. Stace)
Geum urbanum 3 (Flowering and fruiting habit, picture taken in the Netherlands by K. Ybema)

Description provides information about characters, distribution and habitat of the selected species or higher group. You can search using vernacular or scientific name.