Scientific Name: Cardamine oligosperma
Common Name: snapweed, little western bittercress
Family Name: Brassicaceae
Origin: B.C. east of Cascades, B.C. west of Cascades, U.S. - northwest, U.S. - southwest
Hardiness Zone: Zone 4: (-34 to -29 °C)
Plant Type: Annual, Biennial, Herbaceous perennial, Weed (horticultural)
Mature Size: 0.1 - 0.2m x 0.1 - 0.3m (height x width)
Habit: Upright
Form: Round
Texture: Fine
Landscape Uses: Herb
Exposure: Full sun, Part sun/part shade
Soil or Media: Well-drained
Leaves: Lobed, Compound, Alternate, Basal, Soft flexible, Pubescent, Odd-pinnate, Leaflets stalked, Oblanceolate, Pinnately lobed
Flowers: Raceme, White, Mar-Apr-May-Jun-Jul
Fruit: Silique, Brown, Apr-May-Jun-Jul
Key ID Features:
Leaves mostly basal, 3-4cm long x 1-2cm wide, pinnately compound, leaflets 4-9mm long x 2-6mm wide, sometimes lobed or narrow, petiolules ~7mm long (stem leaves similar); racemes 3-10cm long, florets small with 4 white petals 2-4mm long, sepals 1-2mm long; silique 1.5-2.5cm long x 1-1.5mm wide, exploding to release 15-25 seeds, on petiole stalk 4-7mm long.