Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Click images to enlarge and show more photo credit.

Key to Sisymbrium

Brassicaceae

Sisymbrium

Copy permalink to share

1 Silique subulate, 80-150 mm long, appressed to the rachis; pedicels 1-3 mm long; petals 3-4 mm long
1 Silique linear, 30-100 mm long; spreading from the rachis; pedicels 5-20 mm long
  2 Distal cauline leaf blades with linear or filiform lobes; fruiting pedicels thicker than siliques above, the mature siliques 30-100 mm long; petals 6-8 mm long
  2 Distal cauline leaf blade with lobes broader, not linear; fruiting pedicels thinner than siliques above, the mature siliques 30-40 mm long; petals 2.5-4 mm long