wintercresses

genus Barbarea

Member of mustard family (family Brassicaceae)
dicots (class Magnoliopsida)
flowering plants (subphylum Angiospermae)

There are no other wild species of this genus in California.

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land cress
Barbarea verna

• petals 6–7 mm (including claw), yellow
• sepals 3–5 mm
• cauline leaves pinnately lobed, strongly at the base
• unclear how to distinguish from american yellowrocket (Barbarea orthoceras) without fruit
• rare

garden yellowrocket
Barbarea vulgaris

• petals 6–9 mm (including claw), yellow
• sepals 3–5 mm
• stigma significantly above anthers
• distal cauline leaves coursely dentate or entire
• basal lobes of distal leaves glabrous
• rare

Toxicity of wintercress (Barbarea spp.):
0 – Non-toxic.

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1 observed taxon / 2 unobserved taxons / 1 key

Chris’s observations: 17 (3 are research grade)

Locations:

• Henry Coe SP: 4
• Edgewood Park & Natural Preserve: 2
• Waterdog Lake & Open Space: 2
• Almaden Quicksilver CP
• Alpine Rd.
• Castle Rock SP
• Coal Creek OSP
• Coyote Valley OSP
• El Corte de Madera OSP
• Joseph D. Grant CP
• Purisima Creek Redwoods OSP
• Sweeney Ridge National Recreation Area

Months:

• Feb.: 2
• Mar.: 4
• Apr.: 8
• May: 1
• Jun.: 1
• Jul.: 1

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Taxon info: iNaturalist – Calflora – Jepson eFlora – FNA

Bay Area species: iNaturalist – Calflora