- Group 1Lycophytes, Monilophytes
- Group 2Gymnosperms
- Group 3Monocots
- Group 4Woody angiosperms with opposite or whorled leaves
- Group 5Woody angiosperms with alternate leaves
- Group 6Herbaceous angiosperms with inferior ovaries
- Group 7Herbaceous angiosperms with superior ovaries and zygomorphic flowers
- Group 8Herbaceous angiosperms with superior ovaries, actinomorphic flowers, and 2 or more distinct carpels
- Group 9Herbaceous angiosperms with superior ovaries, actinomorphic flowers, connate petals, and a solitary carpel or 2 or more connate carpels
- Group 10Herbaceous angiosperms with superior ovaries, actinomorphic flowers, distinct petals or the petals lacking, and 2 or more connate carpels
Cilia near the apex of the sepals and auricles of upper leaves are an important identification characters for New England Barbarea. However, the cilia are sometimes very sparse and may number only 1 or a few on the margins of these organs.
1b. Basal leaf blades simple or with 1–4 pairs of lateral lobes; siliques 10–40 (–45) mm long; fruiting pedicels up to 1 mm thick
2b. Silique with a persistent style beak 0.5–1.6 (–2.3) mm long; petals 3–6 mm long; auricles of uppermost leaves ciliate; sepals usually pubescent near the apex (sometimes glabrous in B. stricta)
Show photos of: Each photo represents one species in this genus.