Portland Spurge
Scientific name: Euphorbia portlandica L.
Diagnostic features
Glabrous, erect biennial to perennial to 40(50)cm.
Rhizomes absent.
Leaves slightly succulent, obovate to oblanceolate, sessile, entire, with midrib prominent on lowerside.
Inflorescence arising from top of last year's stems.
Capsules granulose near midline of each valve, glabrous.
Seeds pitted.
Chromosome number: 2n=16.
Habitat
Native; maritime sand-dunes and sometimes cliffs.
Distribution
Rather local on coasts of Ireland, Channel Islands and South & West Britain from South Hants to Kintyre (formerly South Ebudes).
This species is keyed out on Page 2087 in the Text Key.
Hybrids
- Euphorbia portlandica x Euphorbia paralias has been found with both parents in Wales and Wexford; it is partially sterile and intermediate in leaf characters; endemic. |
