Prasium

{{Short description|Genus of flowering plants}}

{{Italic title}}

{{Speciesbox

| name = White hedge-nettle

| image = Prasium_majus_Sardinia_LM_100407_066.jpg

| display_parents = 2

| genus = Prasium

| parent_authority = L.

| species = majus

| authority = L.

| synonyms_ref =

| synonyms =

• Prasium minus L.
• Prasium laetum Salisb.
• Prasium medium Lowe
• Levina Adans.

}}

Prasium, common name white hedge-nettle,[http://www.flowersinisrael.com/Prasiummajus_page.htm Israel Wildflowers][http://maltawildplants.com/LABT/Prasium_majus.php Wild Plants of Malta & Gozo] is a genus of flowering plant in the family Lamiaceae, first described in 1982. It contains only one known species, Prasium majus, first described for modern science in 1753. It is native to Madeira, the Canary Islands, and the Mediterranean region of Europe, North Africa, and the Middle East, as far east as Turkey, Cyprus,{{Cite web |title=Prasium majus L. - Encyclopedia of Life |url=https://eol.org/pages/2917683 |access-date=2022-12-26 |website=eol.org}} and Israel.[http://apps.kew.org/wcsp/namedetail.do?name_id=164640 Kew World Checklist of Selected Plant Families]Castroviejo, S. & al. (eds.) (2010). Flora Iberica 12: 1-650. Real Jardín Botánico, CSIC, Madrid.Bergmeier, E., Blockeel, T., Böhling, N., Fournaraki, C., Gotsiou, P., Jahn, R., Lansdown, R. & Turland, N. (2011). An inventory of the vascular plants and bryophytes of Gavdopoula island (S Aegean, Greece) and its phytogeographical significance. Willdenowia 41: 179-190.Dobignard, A. & Chatelain, C. (2012). Index synonymique de la flore d'Afrique du nord 4: 1-431. Éditions des conservatoire et jardin botaniques, Genève.[http://luirig.altervista.org/flora/taxa/index1.php?scientific-name=prasium+majus Altervista Flora Italiana, The siciliano, Prasium majus L. ] includes photos plus European distribution map