Small White Clover.
Trifolium nigrescens Viv.
NOT protected species in Bulgaria.
Trifolium nigrescens is a annual herbaceous plant. The stems are prostrate, branched from the base, 5 to 30 cm long. The leaflets are obovate or rhombic, often with black spots. Stipules triangular-lanceolate. Flower heads 1-2 cm wide, with petioles longer than the leaves. Corolla white or pink, 1 to 2 times longer than the calyx. Calyx with 10 veins. Flowering May-August1.
In dry and moderately humid open places in the lowlands, foothills and lower mountain belt2.
Native in Bulgaria in the next floristic regions: Danube Plain, Sofia Region, Znepol Region, Vitoshki Region, Struma Valley, Eastern Rhodopes, Belasitsa, Rila, Thracian Lowland, Tundzhan Hilly Plain, up to 1000 meters above sea level3.
Map of general distribution4 (green - native distribution):
1 Кожухаров, Ст. 1976. В: Флора на Народна Република България, том VI, Издателство на БАН, София.
2 Кожухаров, Ст. 1976.
3 Кожухаров, Ст. 1976.
4 Trifolium nigrescens Viv. | Plants of the World Online | Kew Science.
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