Hyoscyamus

Hyoscyamus L.

Hyoscyamus is a genus of ca. 20-30 species, mostly native to the Mediterranean region and SW-Asia (some extending to Central Asia). One species, Hyoscyamus niger L., is a rare native (probably rather archaeophyte) in Belgium as well.

  • All leaves petiolate. Corolla greenish white to cream, without darker veins === 1. Hyoscyamus albus
  • Cauline leaves sessile-amplexicaul (but basal leaves petiolate!). Corolla pale yellow, usually with purplish veins (rarely pure yellow) (native) === H. niger


Literature:

Hawkes J.G. (1972) Hyoscyamus. In: Tutin T.G. & al. (eds.), Flora Europaea, vol. 3. Cambridge University Press, Cambridge: 195.

Schulte W. (1985) Hyoscyamus niger var. pallidus Waldst. et Kit. (Gelbblühende Varietät des Schwarzen Bilsenkraut) auf ehemaliger Industriebrache in Hamm (Westf.). Gött. Flor. Rundbr. 19(1): 39-42.

Taxonomic name: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith