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Herba Cana - Northeastern Illinois University

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© 2004 by CRC Press<br />

The Ethnobotany 527<br />

jara. It is not clear if they are comparing the species<br />

with rockrose (Helianthemum, Sonora) because<br />

both have white pubescent leaves, or if they are calling<br />

it an ‘‘arrow’’ (the Spanish from Hebrew khara, to<br />

cast).<br />

The common name cure-for-all is an exaggeration,<br />

but both species are used to treat many problems.<br />

Among the afflictions treated are asthma, bronchitis,<br />

cholera, colds, digestive and eye complaints, fever,<br />

gout, headache, hoarseness, hypertension, menstrual<br />

difficulties, nervousness, neuralgia, night sweats, rheumatism,<br />

sores, spasms, stomach disorders, swelling in<br />

any part of the body, toothache, twitching muscles,<br />

and wheezing. They are also used to treat new mothers<br />

and women in labor (Standley 1920 /1926, Roig 1945,<br />

Martínez 1969, Morton 1981).<br />

Laboratory studies have shown that P. odorata has<br />

antifungal, antimicrobial, antibacterial, and anthelmintic<br />

properties (Dominguez and Zamudio 1972,<br />

López-Abraham et al. 1979, Scholz et al. 1990, 1994).<br />

These traits apparently stem from terpenes. Most of<br />

the known compounds in P. odorata are sesquiterpenes<br />

(Dominguez et al. 1981, Arriaga-Giner et al.<br />

1983, Arriaga and Borges-del-Castillo 1985, Ahmad<br />

et al. 1992a,b, Loayza et al. 1992, Ahmed et al. 1998).<br />

Sesquiterpenes also are among the most reported<br />

chemicals in other species (Ahmad and Fizza 1988a,<br />

b, Ahmad et al. 1989a, 1991, 1992a,b, Ando et al.<br />

1994, Zdero and Bohlmann 1989, Uchiyama et al.<br />

1991, Guilhon and Muller 1996, 1998, Mahmoud<br />

1997, Shimoma et al. 1998). However, monoterpenes,<br />

triterpenes, and triterpenoids are known to have<br />

similar properties (Uchiyama et al. 1991, Kaith 1996,<br />

Pérez-Garcia et al. 1996). Also reported are antiinflammatory<br />

(Srivastava et al. 1990, Sen and Nag<br />

Chaudhuri 1990, 1991, Sen et al. 1993a, Pérez et al.<br />

1995), anti-ulcer (Pal and Chaudhuri 1989, Sen et al.<br />

1993a), hepatoprotective (Sen et al. 1993b), and<br />

trypanocidal (Zani et al. 1994) properties.<br />

Common names indicate an ancient Náhuatl and<br />

Mayan application for women, especially during and<br />

after childbirth, and suggest an original specialized<br />

medicine. With the influx of several European cultures<br />

and confusion with the Old World fleabanes, that<br />

specialization may have given way to a broader<br />

utilization. Indeed, considering the array of uses for<br />

Pluchea, it is easy to see why it became known as a<br />

cure-for-all or guérit-tout. Given the Old World use to<br />

treat poisonous snakebites, it is surprising that people<br />

in the New World did not include that among their<br />

pharmacopoeia. Experimental data for Pluchea actually<br />

indicate that it works for that problem (Alam et al.<br />

1996).<br />

Plumbago: Plumbago or Leadwort<br />

(Latin plumbum, lead, ago from agere, to bear or<br />

resemble)<br />

Plumbago scandens. a. Flowering branch. b. Detail of node.<br />

c. Flowering and subtending bract and bracteole.<br />

d. Stamens, front and side view. e. Gynoecium, with details<br />

of stigma and ovary. Drawn by Bobbi Angell. From Acevedo<br />

2003.<br />

The word ‘‘plumbago’’ appeared in English by<br />

1784 although it has a venerable history in southern<br />

European languages. Most speakers of English call the<br />

plants leadwort. Both names refer to the genus<br />

Plumbago and the family Plumbaginaceae. The history<br />

of the words ‘‘plumbago’’ and ‘‘leadwort’’ is long and<br />

complicated, and sometimes the plant is inseparable<br />

from the metal except by inference.<br />

Dioscorides (fl. A.D. 40 /80) used two Greek words<br />

to designate both a metal and a plant. Pliny (A.D. 23 /<br />

79) Latinized those words as molybdaena and plumbago,<br />

and used both for what is now galena, lead ore.<br />

However, for the plants, Pliny always used plumbago.<br />

In Philemon Holland’s 1601 translation Pliny says,<br />

‘‘There groweth commonly an herbe named in Greeke<br />

Molybdaena, that is to say in Latin, Plumbago, euen<br />

vpon euery corne land.’’ Matthioli’s Commentary on<br />

Dioscorides was translated into French in 1572, and<br />

subsequently most French, Italian, and German<br />

speakers reapplied ‘‘plumbago’’ to the metal. Linnaeus

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