Field Cress

Growing form: Annual or usually biennial herb.
Height: 20–40 cm (8–16 in.). Often 1-stemmed, on top candelabra-like branched, densely short-haired, greyish
Flower: Corolla regular (actinomorphic), white, approx. 0.2 cm (0.08 in.) across; petals four, 2–3 mm (0.08–0.12 in.) long. Sepals 4. Stamens 6, of which 4 long and 2 short. Gynoecium fused, a single carpel. Inflorescence an elongating raceme in fruiting stage,
Leaves: Alternate, lowest soon dying, stem leaves stalkless, amplexicaul, several. Lowest leaf blades slightly lobed, upper leaves ovate–elliptic, with sagittate base and toothed margins.
Fruit: Two-seeded, broadly elliptic, flat, with notched tip, broadly winged, virtually glabrous, rough, 4.5–6 mm (0.18–0.24 in.) long silicula. Stalk spreading, at least as long as silicula.
Habitat: Fields, sandy areas, sometimes mills, harbours, railway embankments, banks, wasteland, land-fill sites, rubbish tips.
Flowering time: June–July.