Question: What continent are both Mitella and Inula found in?

Context articles: South Polar dinosaur
Capitulum mitella
Climate of Africa
Inula
Trixis inula
Inula conyza
Helenin
Inula salicina
Mitella
Axillarin

The South Polar dinosaurs proliferated during the Early Cretaceous (145–100 Ma) while the continent of Australia was still linked to Antarctica to form East Gondwana, a continent that had rifted from Africa and drifted southward.
 Much of this southern continent lay inside the Antarctic Circle, and the climate there was unlike any that exists today.
 This led to fauna and flora that were unique to the time.
 Much of what is known about the fauna of Polar Australia comes from fossil beds found in Dinosaur Cove and Flat Rocks on the Victorian coast of southeast Australia.
Capitulum is a monotypic genus of sessile marine stalked barnacles.
 Capitulum mitella is the only species in the genus.
 It is commonly known as the Japanese goose barnacle or kamenote and is found on rocky shores in the Indo-Pacific region.
Due to Africa's position across equatorial and subtropical latitudes in both the northern and southern hemisphere, several different climate types can be found on the continent of Africa.
 Africa mainly lies within the intertropical zone between the Tropic of Cancer and the Tropic of Capricorn.
 Only the northernmost and the southernmost fringes of the continent have a Mediterranean climate.
 Because of this geographical situation, Africa is a hot continent as the solar radiation intensity is always high.
 Thus, warm and hot climates prevails all over Africa but the northern part is the most marked part by aridity and high temperatures.
 The climate of Africa is a range of climates such as the equatorial climate, the tropical wet and dry climate, the tropical monsoon climate, the semi-desert climate (semi-arid), the desert climate (hyper-arid and arid), the subtropical highland climate etc.
 Temperate climates remain rare through the continent except at very high elevations and along the fringes.
 In fact, the climate of Africa is more dependent to rainfall amount than to temperatures as they are consistently high.
 African deserts are the sunniest and the driest parts of the continent due to the prevailing presence of the subtropical ridge with subsiding, hot, dry air masses.
 Africa holds many heat-related records : the continent has the hottest extended region year-round, the areas with the hottest summer climate, the highest sunshine duration etc.
Inula is a large genus of about 90 species of flowering plants in the family Asteraceae, native to Europe, Asia and Africa.
Trixis inula, the tropical threefold, is a plant species native to Texas, Mexico, Central America, northern South America, and the West Indies.
 It is found on open, sandy sites such as roadsides, thorn scrub, thickets, etc.
Inula conyza, known as ploughman's-spikenard, is a species of plant from Asteraceae family that can be found in Europe, North Africa, and the Near East.
Helenin is a phytochemical mixture found in many plant species, including the "Inula helenium" (elecampane) of the Asteraceae family.
 It is a mixture of two isomeric sesquiterpene lactones, alantolactone and isoalantolactone.
Inula salicina (common name Irish fleabane (UK) or willowleaf yellowhead) is a plant species in the genus "Inula" in the family Asteraceae.
 It is found across Europe and Asia from Portugal to Japan.
 It has been reported growing in the wild in a few scattered locations in North America but it has not become widely established there.
Mitella is a genus of flowering plants known as miterworts or bishop's caps.
 "Mitella" species are native to temperate and arctic North America and Asia.
Axillarin is an O-methylated flavonol.
 It can be found in "Pulicaria crispa", "Filifolium sibiricum", "Inula britannica", "Wyethia bolanderi" in "Balsamorhiza macrophylla" and in "Tanacetum vulgare".
 It can also be synthetized.