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Taxon:  Turnera diffusa Willd.



Summary
Genus:
Turnera
Family:
Passifloraceae
Subfamily:
Turneroideae
Nomen number:
40777
Place of publication:
J. A. Schultes, Syst. veg. 6:679. 1820
Comment:
authorship verified from original literature
Verified:
01/18/2001 ARS Systematic Botanists.
Accessions:
0 (0  active, 0  available) in National Plant Germplasm System. 
Other conspecific taxa
Turnera diffusa Willd. var. aphrodisiaca (G. H. Ward) Urb. (0 active accession[s])
Turnera diffusa Willd. var. diffusa (0 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Heterotypic Synonym(s)
Turnera microphylla Ham.
No images
Reference(s)
  1. Arbo, M. M. 2000. Estudios sistemáticos en Turnera (Turneraceae) II. Series Annulares, Capitatae, Microphyllae y Papilliferae. Bonplandia 10:49-63.
  2. Correll, D. S. & H. B. Correll. Flora of the Bahama archipelago. 1982
  3. Der Marderosian, A. & L. Liberti. Natural product medicine: a scientific guide to foods, drugs, cosmetics. 1988
  4. Duke, J. A. et al. CRC Handbook of medicinal herbs. 2002
  5. Encke, F. et al. Zander: Handwörterbuch der Pflanzennamen, 13. Auflage. 1984
  6. Erhardt, W. et al. Zander: Handwörterbuch der Pflanzennamen, 16. Auflage. 2000
  7. Hersch-Martinez, P. 1995. Commercialization of wild medicinal plants from. southwest Puebla, Mexico. Econ. Bot. 49:197-206. http://link.springer.com/journal/volumesAndIssues/12231
  8. Kartesz, J. T. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 1994 Note: with two varieties
  9. Leung, A. Y. & S. Foster. Encyclopedia of common natural ingredients used in food, drugs, and cosmetics, ed. 2. 1996
  10. McVaugh, R. Flora Novo-Galiciana. 1983-
  11. Meerow, A. W. et al. 2010. Turnera diffusa 'Luisa', a Drought-tolerant Small Shrub for Warm Climates. HortScience 45:1895-1896.
  12. Rehm, S. Multilingual dictionary of agronomic plants. 1994
  13. Shreve, F. & I. L. Wiggins. Vegetation and flora of the Sonoran desert. 1964
  14. Standley, P. C. & J. A. Steyermark. Flora of Guatemala. 1946-1976
  15. Wiggins, I. L. Flora of Baja California. 1980
Common names
English
damiana –
Mexican-holly –
French
thé bourrique –
Spanish
damiana de Guerrero –
Distribution
Native
Northern America
  • NORTHERN MEXICO: Mexico [Chihuahua, Nuevo Leon, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, Zacatecas, Baja Sur]
  • SOUTH-CENTRAL U.S.A.: United States [Texas]
  • SOUTHERN MEXICO: Mexico [Campeche, Chiapas, Colima, Guanajuato, Guerrero, Hidalgo, Jalisco, Mexico, Michoacan, Nayarit, Oaxaca, Puebla, Queretaro, Quintana Roo, Veracruz, Yucatan]
Southern America
  • BRAZIL: Brazil [Bahia, Ceara, Minas Gerais (n.), Pernambuco, Rio Grande do Norte]
  • CARIBBEAN: Bahamas, Cuba, Cayman Islands, Dominican Republic, Haiti, Jamaica, Puerto Rico, Turks and Caicos Islands, Virgin Islands (British), Virgin Islands (U.S.)
  • MESOAMERICA: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama
Cultivated (also cult.)
Economic Uses
Environmental
Food additives
flavoring (fide Ency CNatIn) –
Medicines
folklore (fide Der Marderosian; CRC MedHerbs ed2) –


NGBT Plant Germplasm System Distribution Policy

Plant germplasm is distributed to scientists, educators, producers and other bona fide research and education entities from National genebank of Tunisia active collection sites. The NGBT Curator and/or Research Leader will, in accordance with current NPGS policies and procedures, determine the legitimacy of a request when necessary.

Distributions to fulfill requests for repatriation of subsamples of germplasm collections to a country or community of origin, especially following natural or man-made catastrophes, are considered a high priority.

Although distributions for research, education, and repatriation are of the highest priority, the NPGS also encourages various seed-saver organizations and public gardens to conduct germplasm conservation activities that engage many individuals and groups throughout the country. Elements of the NPGS cooperate with seed-saver organizations and public gardens and may store germplasm for and distribute germplasm to such organizations.

Distribution of germplasm from NPGS collections to fulfill requests from individuals seeking free germplasm strictly for home use is generally considered an inappropriate use of limited resources and conflicts with U.S. Government policy of not competing with commercial enterprises. Requestors can be asked, in an appropriate manner, to justify the use of specific NPGS germplasm instead of suitable commercially available germplasm.

Accessions listed in the Germplasm Resources Information Network (GRIN) database as “not available” due to insufficient or low viability seed and/or scheduled for regeneration will generally not be available for distribution.

Other accessions are listed in GRIN as “not available” because they are not a part of the NPGS collection per se, but are conserved in NPGS genebanks to meet specific needs as described later in the section entitled “Categories of Germplasm Distributed and Availability.” In this category are certain accessions of improved germplasm that are only available from the owner/developer. Other accessions require that specific conditions be met by the requestor before distribution is possible.

NPGS sites will not distribute germplasm internationally when they cannot comply with the importation or quarantine requirements of the recipient country unless the requestor can provide a valid waiver of such requirements.