Alyssum - Alyssum simplex
Other Names:
European Madwort,
Alyssum parviflorum, Alyssum minus
Stems 6–20 cm. Leaves 1–3 cm long. Fruit, 4–6 mm long with a broad winged margin, pubescent with stellate hairs; style 1–1.5 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).