Israel wildflowers: Hairy bittercress

Cardamine hirsuta, Hairy bittercress, shotweed, snapweed,
Hebrew: קרדמין שעיר, Arabic: الحُرْف الزغبي

Scientific name:   Cardamine hirsuta L.
Common name:   Hairy bittercress, shotweed, snapweed
Hebrew name:   קרדמין שעיר
Arabic name:   الحُرْف الزغبي
Family:   Cruciferae / Brassicaceae, מצליבים


Life form:   Annual
Stems:   under 30 cm high; mostly erect, smooth, angled stems branch mainly at the base, glabrous
Leaves:   Basal rosette, pinnate (2 to 10 pairs), round or wedge-shaped leaflets, terminal leaflet larger, petioles hairy at base
Flowers:   Hermaphrodite, white flowers in terminal clusters; flower diameter c 2-3.5 mm; 4 petals, 4 stamens
Fruits / pods:   Silique, about 2.5cm long, flattened, upward-pointing capsules
Flowering Period:   February, March, April, May, June, July
Habitat:   Batha, Phrygana, Disturbed habitats
Distribution:   Mediterranean Woodlands and Shrublands, Deserts and extreme deserts
Chorotype:   Med – Euro-Siberian
Summer shedding:   Ephemeral


Derivation of the botanical name:

Cardamine, Greek kardamon used by Dioscorides for some cress, since many species resemble watercress in appearance and flavor; maybe used in treating heart ailments.

hirsuta, rough, shaggy, bristly; hairy.

  • The standard author abbreviation L. is used to indicate Carl Linnaeus (1707 – 1778), a Swedish botanist, physician, and zoologist, the father of modern taxonomy.