Jepson eFlora
Key to families | Table of families and genera

Key to Sisymbrium

View taxon page for Sisymbrium

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Fruit narrowly awl-shaped, (0.7)1–1.4(1.8) cm, appressed to rachis; seeds 10–20 ..... S. officinale

1' Fruit narrowly linear, (1.7)3–14 cm, not appressed to rachis; seeds 30–140

2. Pedicels narrower than fruit

3. Young fruit overtopping flowers; petals 2.5–3.5(4) mm; plants glabrous or sparsely hairy ..... S. irio

3' Young fruit not overtopping flowers; petals 6–8 mm; plants generally densely hairy at least proximally ..... S. loeselii

2' Pedicels ± as thick as fruit

4. Distal-most leaves finely pinnately divided into linear to thread-like segments; sepals horned; pedicels (4)6–10(13) mm ..... S. altissimum

4' Distal-most leaves generally simple, if lobed then not finely pinnately divided into linear segments; sepals not horned; pedicels 1–6 mm

5. Pedicels 1–2(3) mm; petals 1.4–2.5 mm; seeds 30–46(54) ..... S. erysimoides

5' Pedicels 3–6 mm; petals (6)7–9(10) mm; seeds (60)80–100(140) ..... S. orientale


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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