Tree Lupin
Scientific name: Lupinus arboreus Sims
Diagnostic features
Stems erect, much branched, to 2m, with rather sparse short hairs.
Leaflets 5-10(12), mostly less than 6cm, oblanceolate to linear-oblanceolate.
Lower lip of calyx 7-11mm.
Corolla usually yellow, often blue-tinged, sometimes blue or whitish.
Chromosome number: (2n=40, 48).
Habitat
Introduced-naturalized; garden escape naturalized in waste places and on maritime shingle or sand.
Distribution
Very scattered mostly on coasts of Britain North to Central Scotland, South Ireland, Channel Islands; California.
This species is keyed out on Page 2965: Lupinus in the Text Key.
Note
Killed or cut back in heavy frosts, so populations fluctuate.
Hybrids
- See Lupinus regalis(x) Bergmans (= Lupinus arboreus x Lupinus polyphyllus) |
