Constance has conceded the great caper debate. Thank you, Constance.
While the word olive is mentioned several times in the description of capers (olive-colored bud and often used as an olive substitute, brined like olives), capers are not olives, small or otherwise. So, if
"The unopened flower buds of a Mediterranean tree."
Is the Final Jeopardy answer, you can correctly question any of the below for the win!
Capparis spinos - capers are the unopened flower buds of a Mediterranean tree. Capers, like olives, are either pickled, or salted, and added to recipes...
The unopened, olive-green flower bud of the caper bush. Usually pickled in vinegar or brine and tarragon, capers are used to season sauces, cold meats and fish. Their flavor is peppery, sharp and salty-sour, with the finest flavor found in the smallest buds.
any of numerous plants of the genus Capparis
pickled flower buds used as a pungent relish in various dishes and sauces
The caper (Capparis spinosa L.) is a perennial spiny shrub that bears rounded, fleshy leaves and big white to pinkish-white flowers. A caper is also the pickled bud of this plant. The bush is native to the Mediterranean region, growing wild on walls or in rocky coastal areas throughout. ...
The pungent grayish green flower bud of the European and Oriental caper (Capparis spinosa), which is pickled and eaten, sometimes as an olive substitute; A plant of the genus Capparis; -- called also ...