black sea red data book - Department of Biology

Seeds have good germination power (up to 40-50 years), annually only a part of
them shoot. Flowering during VI-VII. Fruit-bearing in V1TI-IX. Reproduction
only by seeds.
Population trends. Populations abundant, particularly in the Dunaiskie plavni
reserve (Ukraine).
Threats. Drying of wetlands, chemical pollution, use for animal feeding.
Conservation measures taken. The species is in the Red Data Books of delta
(Ukraine and Romania).
Conservation measures proposed. Create new protected zones.
References
Lucas, G., 1977. List of rare, threatened and endemic plants in Europe. Strasbourg:
286 pp.
Peev, D., 1979. Flora na NRB. 7 Sem. Trapaceae: 444-446 pp.
Rare and vanishing plants of the USSR (A. Takhtajan, Ed.), 1981. Leningrad: 264 pp.
Red Data Book of Russian Soviet Federal Socialist Republic, 1988. Plants. Moscow:
590 pp.
Red Data Book of Bulgaria, 1984. Plants. Sofia 1: 447 pp.
Red Data Book of Ukraine, 1996. Plant Kingdom. Kyiv:606pp.
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