The Collaborative International Dictionary of English v.0.48:

Ipecacuanha \Ip`e*cac`u*an"ha\
   ([i^]p`[-e]*k[a^]k`[-u]*[a^]n"[.a]), n. [Pg. ipecacuanha (cf.
   Sp. ipecacuana); fr. Braz. ipe-kaa-guena, prop., a creeping
   plant that causes vomiting.] (Med. & Bot.)
   The root of a Brazilian rubiaceous herb (Cepha["e]lis
   Ipecacuanha), largely employed as an emetic; also, the plant
   itself; also, a medicinal extract of the root. Many other
   plants are used as a substitutes; among them are the black or
   Peruvian ipecac (Psychotria emetica), the white ipecac
   (Ionidium Ipecacuanha), the bastard or wild ipecac
   (Asclepias Curassavica), and the undulated ipecac
   (Richardsonia scabra).
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Coca \Co"ca\, n. [Sp., fr. native name.]
   The dried leaf of a South American shrub (Erythroxylon
   Coca). In med., called Erythroxylon.
   [1913 Webster]

   Note: Coca leaves resemble tea leaves in size, shape, and
         odor, and are chewed (with an alkali) by natives of
         Peru and Bolivia to impart vigor in prolonged exertion,
         or to sustain strength in absence of food.
         [1913 Webster]

   Mexican coca, an American herb (Richardsonia scabra),
      yielding a nutritious fodder. Its roots are used as a
      substitute for ipecacuanha.
      [1913 Webster]