Trifolium ochroleucon Huds. - Sulphur Clover.

Taxonomic position.

Family Fabaceae Lindl., genus Trifolium L.


Trifolium ochroleucon Huds. subsp. roseum (C.Presl) Guss., Trifolium ochroleucum Huds., Trifolium pallidulum Jord., Trifolium roseum J.Presl & C.Presl.

Morphology and biology.

Perennial. Stems 20.50 cm tall, few (2-3), ascending, poorly branched or simple, with few (3.5) cauline leaves, with patent hairs in lower part, with adpressed ones in upper part; stipules lanceolate, pilose, subulately acuminated in free part; leaflets oblong-elliptic to lanceolate, 1.5.5 cm long and 5.10 mm wide, adpressedly pilose, lower ones broader and shorter, upper ones narrow-lanceolate. Heads usually solitary, ovoid, 2.3 cm long, subsessile or separated from upper leaves with short (1.3 cm long) peduncle, flowers 15.18 mm long, calyx tube 6.7 mm long, distinctly ribbed, pilose, calyx teeth slightly shorter than tube, only lowermost one as long as tube and 1/3 longer than the others, two upper teeth more fused; teeth lanceolate, pilose, with one sharply prominent midrib and two lateral veins, sometimes scarcely distinct; corolla about 15 mm long, pale yellow, by the end of blossom reddish-brown, early caducous; standard lanceolate, twice as long as wings and keel; pods ovoid with cartilaginous upper part, one-seeded. Plant cross-pollinated by insects. Flowers and fruits in June - July. 2n=16.


Moldova, western and southern Ukraine, Crimea.


Damp grass plots, forest fringes and open broad-leaved forests.

Use and economic value.

May be used as forage plant.


Bobrov EG. 1945. Clover - Trifolium L. In: Shishkin BK., ed. Flora URSS. V.11. P.189-261. (In Russian).
Bobrov EG. 1987. Clover - Trifolium L. In: Fedorov AA., Tzvelev NN., eds. Flora of the European part of the USSR. V.6. P.195-208. (In Russian).
Roskov YR. et al. 2005. ILDIS World Database of Legumes. [Online] Available at: .

© N.I.Dzyubenko, E.A.Dzyubenko

© Photo by E.A.Dzyubenko

Web design —
Kelnik studios