Question: Concerning the genus Coffea and Echinacea, which is the most valuable?

Context paragraphs:
Echinacea: Echinacea is a genus, or group of herbaceous flowering plants in the daisy family.  The "Echinacea" genus has nine species, which are commonly called purple coneflowers.  They are found only in eastern and central North America, where they are found growing in moist to dry prairies and open wooded areas.  They have large, showy heads of composite flowers, blooming from early to late summer.  The generic name is derived from the Greek word ἐχῖνος ("ekhinos"), meaning "hedgehog," due to the spiny central disk.  These flowering plants and their parts have different uses.  Some species are cultivated in gardens for their showy flowers.  "Echinacea purpurea" is used in folk medicine.  Two of the species, "E. tennesseensis" and "E. laevigata", are listed in the United States as endangered species.

Monochamus leuconotus: The White stem borer of coffee (Monochamus leuconotus) is a species of beetle in the family Cerambycidae.  It was described by Francis Polkinghorne Pascoe in 1869, originally under the genus "Anthores".  It is known from Tanzania, Cameroon, Malawi, Kenya, Mozambique, Namibia, South Africa, Uganda, the Democratic Republic of the Congo, Zambia, Angola, and Zimbabwe.  It feeds on "Coffea arabica".

Coffee: Coffee is a brewed drink prepared from roasted coffee beans, which are the seeds of berries from the "Coffea" plant.  The genus Coffea is native to tropical Africa (specifically having its origin in Ethiopia and Sudan) and Madagascar, the Comoros, Mauritius, and Réunion in the Indian Ocean.  The plant was exported from Africa to countries around the world and coffee plants are now cultivated in over 70 countries, primarily in the equatorial regions of the Americas, Southeast Asia, India, and Africa.  The two most commonly grown are the highly regarded arabica, and the less sophisticated but stronger and more hardy robusta.  Once ripe, coffee berries are picked, processed, and dried.  Dried coffee seeds (referred to as beans) are roasted to varying degrees, depending on the desired flavor.  Roasted beans are ground and brewed with near-boiling water to produce coffee as a beverage.

Phryneta leprosa: The Castilloa Borer (Phryneta leprosa) is a species of beetle in the family Cerambycidae.  It was described by Johan Christian Fabricius in 1775, originally under the genus "Lamia".  It has a wide distribution throughout Africa.  It feeds on "Morus alba", "Hevea brasiliensis", "Coffea arabica", and "Chlorophora excelsa".

Penicillium tropicum: Penicillium tropicum is a species of the genus of "Penicillium" which was isolated from soil beneath a Coffea arabica plant in Karnataka in India.

Coffea: Coffea is a genus of flowering plants whose seeds, called coffee beans, are used to make various coffee beverages and products.  It is a member of the family Rubiaceae.  They are shrubs or small trees native to tropical and southern Africa and tropical Asia.  Coffee ranks as one of the world's most valuable and widely traded commodity crops and is an important export product of several countries, including those in Central and South America, the Caribbean and Africa.

Pachystola mamillata: Pachystola mamillata is a species of beetle in the family Cerambycidae.  It was described by Dalman in 1817, originally under the genus "Lamia".  It is known from the Ivory Coast, Cameroon, Sierra Leone, Gabon, Angola, the Republic of the Congo.  It feeds on "Coffea canephora".

Penicillium coffeae: Penicillium coffeae is a fungus species of the genus of "Penicillium" which was isolated from the plant Coffea arabica L. in Hawaii.  Insects play a role in spreading "Penicillium coffeae".

Coptops aedificator: The Albizia Long-horned Beetle (Coptops aedificator) is a species of beetle in the family Cerambycidae.  It was described by Johan Christian Fabricius in 1792, originally under the genus "Lamia".  It is known from Djibouti, Tanzania, the Democratic Republic of the Congo, Ethiopia, Oman, Gabon, India, Madagascar, Malawi, Namibia, Nigeria, Saudi Arabia, the Ivory Coast, Cameroon, Senegal, South Africa, Seychelles, Mauritius, Sri Lanka, and Zambia.  It was also introduced into Cape Verde, Hawaii, and Taiwan.  It feeds on "Theobroma cacao" and several "Coffea" species, including "C. arabica", "C. canephora", and "C. liberica var.  dewevrei".

Homelix decussata: Homelix decussata is a species of beetle in the family Cerambycidae.  It was described by Chevrolat in 1856, originally under the genus "Pachystola".  It is known from Nigeria, the Ivory Coast, Cameroon, and the Republic of the Congo.  It feeds on "Coffea canephora".

Supporting paragraphs: Coffea Echinacea
Answer: Coffea