Ferula ammoniacum

{{Short description|Species of flowering plant}}

{{Speciesbox

|image=Köhler Dorema ammoniacum.jpg

|image_caption=Botanical illustration

|genus=Ferula

|species=ammoniacum

|authority=(D.Don) Spalik, M.Panahi, Piwczyński & Puchałka

|synonyms_ref=

|synonyms={{Collapsible list|

• Diserneston gummiferum {{small|Jaub. & Spach}}
• Dorema ammoniacum {{small|D.Don}}
• Dorema gummiferum {{small|(Jaub. & Spach) K.M.Korol.}}
• Ferula ammonifera {{small|Oken}}
• Peucedanum ammoniacum {{small|(D.Don) Baill.}}

}}}}

Ferula ammoniacum (syn. Dorema ammoniacum), also known as oshac or ussaq,{{cite web |title=oshac |url=https://en.wiktionary.org/wiki/oshac |website=Wikipedia|date=30 June 2024 }} is a species of flowering plant in the family Apiaceae, native to Iran, Turkmenistan, Afghanistan, and Pakistan.{{cite POWO |id=77152156-1 |title=Ferula ammoniacum (D.Don) Spalik, M.Panahi, Piwczyński & Puchałka |access-date=10 October 2022 }} It is the source of Persian gum ammoniac.{{cite journal |title=Compounds from Gum Ammoniacum with Acetylcholinesterase Inhibitory Activity |year=2013 |last1=Adhami |first1=Hamid-Reza |last2=Lutz |first2=J. |last3=Kählig |first3=H. |last4=Zehl |first4=M. |last5=Krenn |first5=L. |journal=Scientia Pharmaceutica |volume=81 |issue=3 |pages=793–805 |doi=10.3797/scipharm.1306-16 |pmid=24106674 |pmc=3791940 }}