Which of these has the most species: Echinops or Areca?
Echinops
Echinops
Echinops is a genus of about 120 species of flowering plants in the family Asteraceae, commonly known as globe thistles.
 They have spiny foliage and produce blue or white spherical flower heads.
 They are native to Europe east to central Asia and south to the mountains of tropical Africa.
Areca
Areca (.)
 is a genus of about 50 species of palms in the family Arecaceae, found in humid tropical forests from China and India, across Southeast Asia to Melanesia.
 The generic name "Areca" is derived from a name used locally on the Malabar Coast of India.
Echinops niveus
Echinops niveus is a species in the genus "Echinops" or globe thistles.
 It is native to the Indian subcontinent: Himachal Pradesh, Jammu and Kashmir, Uttar Pradesh, Nepal. Echinops adenocaulos
Echinops adenocaulos is a Middle Eastern species of plants of the sunflower family.
 It is native to Israel, Palestine, Jordan, Syria, and Lebanon. Echinops ritro
Echinops ritro, the southern globethistle, is a species of flowering plant in the sunflower family, native to southern and eastern Europe (from Spain east to Turkey, Ukraine, and Belarus), and western Asia.
 The species is sparingly naturalized in scattered locations in the United States. Areca gurita
Areca gurita is an extant species of single-stemmed palm tree (genus "Areca") indigenous to the Malaysian state of Sarawak on Borneo.
 Following Heatubun's identification of "A. gurita" in 2011, he recorded specimens in the vicinity of Kota Padawan, Kampong Patak, and Kampung Siburan, south of Kuching. Echinops echinatus
Echinops echinatus, Indian globe thistle, is a species of globe thistle, found in India Pakistan, and Sri Lanka.
 Indian Globe Thistle is an erect branched herb about 100 cm high.
 It has short, stout stems, branching from the base, covered with white cottony hair.
 Alternately arranged oblong, deeply pinnatifid leaves are 7–12 cm long.
 Flower heads occur in solitary white spherical balls, 3–5 cm across.
 Petals of the tiny white disc florets are 5 mm long.
 Flowers are surrounded by straight, strong, white bristles. Echinops exaltatus
Echinops exaltatus (Russian globe thistle or tall globethistle) is European species of globe thistle in the sunflower family.
 It is native to central and eastern Europe from Germany and Italy east into Russia.
 The species has escaped cultivation and become established in the wild in scattered locations in eastern Canada and the northern United States. Areca nut production in India
Areca nut production in India is dominant in the coastal region within 400 km from the coast line, and also in some other non-coastal states of India.
 Areca nut ("Areca catechu"), a tropical crop, is popularly known as betel nut, as its common usage in the country is for mastication with betel leaves.
 It is a palm tree species under the family of Arecaceae.
 It has commercial and economic importance not only in India but also in China and Southeast Asia. Oreopanax echinops
Oreopanax echinops is a species of plant in the Araliaceae family.
 It is found in Guatemala, Honduras, and Mexico.
 It is threatened by habitat loss.