Trinia ramosissima, (Fischer ex Trev.) Koch

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 351

4. T. ramosissima (Fischer ex Trev.) Koch , Nova Acta Acad. Leop.-Carol. 12(1): 127 (1824)

( T. ucrainica Schischkin , T. kitaibelii sensu Hayek , non Bieb.).

Erect, glabrous herb up to 80 cm. Leaves 2-pinnate, with narrow, linear lobes up to 30 mm. Bracteoles usually 5, conspicuous. Male plants relatively sparsely branched, the branches making a wide angle with the stem. Female plants densely branched. Umbels of male plants with 5-10 rays; umbels of female plants with 4-8(-10) rays. Fruit 2-2-5 mm, oblong-ovoid, much shorter than its pedicel, glabrous; ridges rounded, with shallow grooves between them. 2« = 20. • S.E. & E.C. Europe, westwards to C. Czechoslovakia. Au Bu Cz Hu Ju Rm Rs (C, W, E).

It appears possible that this species may include two subspecies. One, occurring in E.C. Europe ( T. kitaibelii auct., non Bieb.), has smaller fruit (c. 2 mm) and relatively robust rays, while the other, from Russia, has rather larger fruit (c. 2-5 mm) and finer rays.