Specific epithet in the context of Common names

Prunus armeniaca is the most commonly cultivated apricot species. The native range is somewhat uncertain due to its extensive prehistoric cultivation. Genetic studies indicate Central Asia is the center of origin. It is extensively cultivated in many countries and has escaped into the wild in many places.

The specific epithet armeniaca refers to the country of Armenia in Western Asia.

Trillium cernuum is a species of flowering plant in the bunchflower family Melanthiaceae. The specific epithet cernuum means "drooping, curving forwards, facing downwards", a distinctive habit of its flower. It is commonly called nodding trillium or nodding wakerobin (not to be confused with Trillium flexipes) since the flower is invariably found nodding beneath the leaves. It is sometimes referred to as the northern nodding trillium to distinguish from Trillium rugelii, a similar nodding species native to the southern Appalachian Mountains. It is also called the whip-poor-will flower since presumably its bloom coincides with the spring arrival of the migrating bird with the same name.

Trillium cernuum was thought to be one of three species of Trillium described by Swedish botanist Carl Linnaeus in 1753 (the other two being Trillium erectum and Trillium sessile). The specimen examined by Linnaeus was actually Trillium catesbaei, a nodding species native to the southern Appalachian Mountains where Trillium cernuum does not occur. This oversight led to much confusion, some of which continues to this day. Within its natural range, Trillium cernuum is often confused with two closely related Trillium species, Trillium erectum and Trillium flexipes. The three species are known to interbreed with one another, which adds to the confusion.

Boswellia frereana is a species of plant native to northern Somalia where it is known as yagcar, yagar, yigaar, or yegaar. Its frankincense is nicknamed the king of all frankincense, and called by the locals maydi (other spellings include: meydi, meyti, maidi, maieti, and mayeti) or the common name for all frankincense, fooh..The specific epithet refers to William Edward Frere, Member of Council at Bombay.

Other than its aromatic uses, the locals also use it for medicinal purposes; they make it into a paste called "malmal" and apply it on the joints to treat inflammation and arthritis. It is reported to be cultivated in Yemen, but this is more than likely based on an 1870 record by Dr. G. Birdwood citing that B. frereana was seen in Sir Robert Playfair's garden in Aden (Yemen). Playfair had brought B. frereana from Somalia and cultivated it in his garden in Aden. Although rumored to also grow in Oman, scientific and botanical evidence does not confirm that B. frereana either grows or is cultivated there.