Sison segetum

Description

Annual plant, 30-60 cm, glabrous , glaucous. finely striated stem , very ramose , with very spreading , tapering, almost naked branches - elongated leaves , lanceolate in their margins, pinnately , with 13-19 oval - oblong segments , incised - dentate , mucronate , those in the top confluences - flowers white or pinkish in umbels. 2-5 prepared rays very unequal. umbellules pauciflorous very uneven rays. involucre 2-3 leaflets linear awl. involucel 2-5 leaflets. styles erect, shorter than the stylopod. fruit ovoid , non-aromatic. Ecology Clayfields and cool places, in the West, the North, the Center to Lyon; rare in the South, no one in the East. Distribution Western Europe: England, Belgium, Spain and Portugal, Northern Italy. Flowering July-September.