Tetragonolobus maritimus ((Linnaeus) Roth, 1788)

Synonyms: Lotus maritimus L., 1753, Lotus siliquosus L., 1758.

Common names: Bulg: Tetragonolobus.

Order (Scientific): FABALES.

Family (Scientific): FABACEAE.

Taxonomic descriptions: The stem is spreading or upright, thick- bristling, hairy. Triple leaves. Stipules are leave-like, partially accreted with the petiole. Single florets within the leaves. Tubular and bell-shaped naked receptacle. Slightly yellow, naked corolla, 22 -25 mm long. The germen is cylindrical, pointed at the tip. Wide, lenticular, dark brown seeds.

Tetragonolobus maritimus arealIUCN Status:
    World level:
    Black Sea Regional level:
    Subregion level: EX


Habitats type, Critical habitats, Limiting factors: Wet, marshy meadows and swamps. Humidity.

Biology: Perennial herbaceous plant. Blooms in May-July. Propagates in July-September. Reproduces with seeds.

Population trends: Extinct.

Threats: Changes in the water regime and contamination of the Lake of Varna.

Conservation measures taken: None.

Conservation measures proposed: Reintroduction.


  1. Kuzmanov, B. 1976. Flora na NRB, IV, Rod Tetragonolobus Scop., pp. 214-215.

Compiled by: M. Filipova.