Appearance

Bunias orientalis is a perennial or biennial plant with a height of 1.6-2.9 ft. (0.5-0.9 m).

Foliage

The lower leaves are with large threecornered edges or sharpedged. Lower leaves pinnate with 1 or 2 pairs of lateral leaflets and a large, clefted (pinnatifid) terminal leaflet, sometimes entire; the upper leaves are entire to pinnatifid and are smaller.

Flowers

The petals are 2 in. (48 mm) long, yellow, entire or truncate.

Fruit

The fruit (a silicula) is less than three times as long as broad and 0.2-0.4 in. (5-10 mm) long, asymmetrically ovoid and covered with small, irregular protuberances.

Ecological Threat

Bunias orientalis it has become a weed of cultivation, occurring on grass fields, roadside verges, and ruderal sites as well as in gardens. From these sites it can invade dry grasslands, especially neglected dry meadows. Solitary specimens to dense stands of Bunias orientalis may also be found along railways, on fallow lands and in floodplain meadows.

Selected Images

Maps

Invasive Listing Sources

• Wisconsin's Invasive species rule – NR 40

References