There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
RAUWOLFIA
rauwolfia, rauvolfia
(noun) any shrub or small tree of the genus Rauwolfia having leaves in whorls and cymose flowers; yield substances used medicinally especially as emetics or purgatives or antihypertensives
rauwolfia
(noun) any of several alkaloids extracted from the shrub Rauwolfia serpentina
Source: WordNet® 3.1
Etymology
From the genus name.
Noun
rauwolfia (plural rauwolfias)
Any of several small trees and shrubs, of the genus Rauwolfia, that yields materials of medical use.
Any of a group of alkaloids extracted from these trees.
Source: Wiktionary
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18 June 2025
SOUARI
(noun) large South American evergreen tree trifoliate leaves and drupes with nutlike seeds used as food and a source of cooking oil
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