Field-rose
Scientific name: Rosa arvensis Huds.
Diagnostic features
Weakly trailing, to 1(2)m.
Leaves with 5-7 leaflets, glabrous or almost so on lowerside, usually 1-serrate, usually glandless.
Flowers 1-few, white, 3-5cm across.
Fruit globose to ellipsoid, 0.8-1.5cm.
Chromosome number: 2n=14.
Habitat
Native; low scrub, hedgerows, woods and open places.
Distribution
Frequent in England, Wales and much of Ireland, very rare in Man and Scotland.
This species is keyed out on Page 2348 in the Text Key.
The following hybrids occur; those with Rosa arvensis as female parent usually resemble that species in habit but have pink petals and other characters (often pubescent leaves) indicating the male parent; those with a species of Section Caninae as female parent usually resemble the latter in habit (and pubescence) but reveal various features of Rosa arvensis on inspection.
Hybrids
- Rosa x paulii Rehder (= Rosa arvensis x Rosa rugosa) is a garden plant (white-flowered like its Rosa rugosa parent) found ± naturalized in London (Surrey).
- Rosa x pseudorusticana Crép. ex Preston (= Rosa arvensis x Rosa stylosa and Rosa stylosa x Rosa arvensis) (Synonym: Rosa x bibracteoides Wolley-Dod); South Britain North to Worcs, Co Dublin.
- Rosa x irregularis Déségl. & Guillon (= Rosa arvensis x Rosa canina and Rosa canina x Rosa arvensis) (Synonyms: Rosa x deseglisei Boreau, Rosa x kosinskiana Besser, Rosa x verticillacantha Mérat, Rosa x wheldonii Wolley-Dod); British Isles North to South Scotland.
- Rosa arvensis x Rosa caesia subsp. vosagiaca; Central England.
- Rosa x rouyana Duffort ex Rouy (= Rosa arvensis x Rosa obtusifolia); Central Wales and Central England.
- Rosa arvensis x Rosa tomentosa; Mons.
- Rosa arvensis x Rosa sherardii and Rosa sherardii x Rosa arvensis; Leics.
- Rosa x gallicoides (Baker) Déségl. (= Rosa arvensis x Rosa rubiginosa and Rosa rubiginosa x Rosa arvensis) (Synonym: Rosa x consanguinea Gren.); England and Wales North to Derbys and Carms.
- Rosa x vituperabilis Duffort ex Rouy (= Rosa arvensis x Rosa micrantha)(Synonym: Rosa x inelegans Wolley-Dod); Central England, Central Wales and South Ireland.
- See also Rosa alba(x) L. (= Rosa gallica x ?Rosa arvensis and/or Rosa canina) |
