Crambe mitridatis Juzepczuk, 1951

Crambe mitridatis imageSynonyms: Crambe koktebelica var. mitridatis Kotov, Crambe orientalis auct

Common names: Engl: Mithridates crambe, Mithridates colewort; Bulg: Divo zele (mitridatis); Rom: Holodean (mitridatis), Tirtan (mitridatis); Russ: Katran mitridatskiy; Ukr: Katran mitridats'ky

Order: CAPPARALES

Family: BRASSICACEAE (CRUCIFERAE)

Taxonomic descriptions: It is a tall (1.5-2.0 m), annual or biennial plant with numerous thin branches. The base leaves are long, lyre-like, parted (solid ones are more rare), bare on the top , have long rare hairs on the veins on the bottom . The flowers are white, petals yellowing towards the base. The foetus is a nut-like podlet. Its base is short, empty; the top is a large sphere, one-seed. The close endemic species C. mitridatis was often described as a taxonomic variety of C. koktebelica because of their non-sufficient differences.

Crambe mitridatis arealIUCN Status:
††† World level: NE
††† Black Sea Regional level: CR
††† Subregion level: CR

Distribution:

Habitats type, Critical habitats, Limiting factors: Sand and shingle coast, beaches, cavities and cracks in coastal rocks. Critical habitats: it was considered as a close endem of Opuk mountain (Kerch peninsula in the Crimea) for a long time; in recent years data shows it has spread to the north of Kerch peninsula (Zolotoye, Bagerovo) and on Tarkhankut peninsula (Jangulí coast). Limiting factors: endemism, small natural population size, phytophagans nutrition, elimination during storms.

Biology: The flowering and fruit-bearing are in June-September. Reproduction - by seeds; a low temperature is necessary for germination ability.

Population trends: The population is not numerous. Its trends are not quite clear.

Threats: Accidental extermination by local inhabitants because the plant is edible.

Conservation measures taken: The species is listed in the Red Data Book of Ukraine and conserved in reservation sites at Kazantip Cape and Opuk mountain (Kerch peninsula of the Crimea).

Conservation measures proposed: Population state monitoring; cultivation and reintroduction measures; creation of Kerch and Tarkhankut natural reservations including protected areas on Opuk mountain and Kazantip Cape.

References:

  1. Rubtsov, N.I. (ed.), 1972. Opredelitel' vysshikh rasteniy Kryma. (Identification Book of the Crimean Higher Plants). Leningrad: Nauka, 550 pp., (in Russian).
  2. Luks, Y.A., Privalova, L.A., and Kryukova, I.V., 1976. Katalog redkikh, ischezayushchikh i unichtozhaemykh rasteniy flory Kryma, rekomenduyemykh dlya zapovednoy okhrany. 1976. (Catalogue of Rare, Disappearing and Exterminative Crimean Flora Plants Recommended for Protection). Yalta: GNBS, 24 pp., (in Russian).
  3. Kryukova , I.V., Luks, Yu.A., Privalova, L.A., et al., 1988. Redkiye rasteniya i zhivotnyye Kryma. (Rare Plants and Animals of the Crimea). Simferopol: Tavria, 176 pp., (in Russian).
  4. Novosad, V.V., 1992. Flora Kerchensko-Tamanskogo Regiona. (The Flora of the Kerch-Taman Region). Kiev: Naukova Dumka, 277 pp., (in Russian).
  5. Golubev, V.N., 1996. Biologicheskaya flora Kryma. (Biological Flora of the Crimea). Yalta: GNBS, 86 pp., (in Russian).
  6. Shelyag-Sosonko, Yu.R. (ed.), 1996. Chervona Knyga Ukrayiny. (The Red Data Book of Ukraine). Kyiv: Ukrayins'ka Entzyklopediya, 608 pp., (in Ukrainian).

Compiled by: L.Vakhrusheva