''Leucophyllum langmaniae'' is a shrub native of
Mexico
Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guate ...
(
Chihuahuan Desert
The Chihuahuan Desert ( es, Desierto de Chihuahua, ) is a desert ecoregion designation covering parts of northern Mexico and the southwestern United States. It occupies much of far West Texas, the middle to lower Rio Grande Valley and the lowe ...
), semi-evergreen, with gray-green leaves of velvety texture. Its shape is branched and compact, forming a rounded mass of up to high and wide. The flowers are lavender. They appear in the fall, and are even more abundant if
drought
A drought is defined as drier than normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, an ...
or
heat waves were important.
''Leucophyllum langmaniae'' is called
Langman's sage or
Rio Bravo
Rio or Río is the Portuguese, Spanish, Italian, and Maltese word for "river". When spoken on its own, the word often means Rio de Janeiro, a major city in Brazil.
Rio or Río may also refer to:
Geography Brazil
* Rio de Janeiro
* Rio do Sul, a ...
sage. However, it is not a true
sage and it has no
systematics
Biological systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time. Relationships are visualized as evolutionary trees (synonyms: cladograms, phylogenetic t ...
relationship to the genus ''
Salvia''.
The plant species name ''langmaniae'' was given in honor of
Ida Kaplan Langman
Ida Kaplan Langman was a Russian Empire-born, American botanist. She made two long expeditions in Mexico from 1939 to 1941 and from 1948 to 1949. She is best known as the author of ''A Selected Guide to the Literature on the Flowering Plants of ...
.
References
Scrophulariaceae
Flora of the Chihuahuan Desert
{{Scrophulariaceae-stub