Limonium binervosum agg.
A group of apomictic perennial herbs comprising the following nine species and numerous infraspecific taxa, many of which are British and Irish endemics. They occur in a wide range of coastal habitats including sea-cliffs, dock walls, shingle banks and saltmarshes. Lowland.
Many of the taxa included here were not recognised at the time of the 1962 Atlas. However, the map shows that there has been no appreciable change in distribution of the aggregate in the last 30?40 years. Most colonies occur in places unlikely to be damaged by human activities, although losses from some artificial habitats have been noted.
The aggregate has an Oceanic Temperate distribution.
Atlas Change Index: 0.16
RDB Species Accounts
Limonium binervosum agg. (Plumbaginaceae)
Rock sea-lavender, Lafant y Morgeigiau
The rock sea-lavenders have long been regarded as a difficult and somewhat 'critical' group. Until recently the L. binervosum aggregate was considered to comprise four species in Britain:- L. binervosum sensu stricto - acknowledged as being "very variable ... with many named varieties" (Clapham, et al. 1987) - and three rare endemics, L. paradoxum, L. recurvum and L. transwallianum. However, a recent thorough revision of the complex (Ingrouille & Stace 1986) has redefined L. binervosum sensu stricto and delimited a further five species (L. britannicum, L. dodartiforme, L. loganicum, L. parvum and L. procerum) and numerous infraspecific taxa.
Of the nine species now recognised, six qualify for inclusion in the Red Data Book, while the remaining three (L. binervosum sensu stricto, L. britannicum and L. procerum) also qualify in that they each have one or more nationally rare subspecies. Almost all the taxa included here are British endemics, only L. binervosum sensu stricto being known to occur elsewhere in Europe (N.W. France).
A detailed taxonomic account of the complex is given by Ingrouille & Stace (1986) and is usefully summarised by Stace (1991). Readers are also referred to the L. binervosum agg. species account and maps given in Stewart, et al. (1994).
S. J. Leach
PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections. A hardcopy can be purchased from the Centre for Ecology and Hydrology.