douglasii
/dug-LAS-ee-eye/🏷️ Taxonomy●●● Advanced
A commemorative epithet honouring David Douglas, the Scottish plant collector whose travels in western North America introduced many conifers and shrubs to European gardens. Formed as a Latin genitive, it is indeclinable and keeps the same ending whatever the gender of the genus. Appears as douglasii (all genders).
Etymology
From the Latin genitive of the surname Douglas, meaning "of Douglas."
Example
“Crataegus douglasii (black hawthorn) and Clinopodium douglasii (Yerba Buena) both commemorate the collector in the same unchanging genitive ending.”