Leucophyllum

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Leucophyllum
Leucophyllum frutescens Green Cloud.jpg
Leucophyllum frutescens 'Green Cloud'
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Scrophulariaceae
Tribe: Leucophylleae
Genus: Leucophyllum
Humb. & Bonpl. [1]
Species

About 15 species, see text

Synonyms

Terania Berland. [1]

Leucophyllum (barometer bush or barometerbush) [2] [3] is a genus of evergreen shrubs in the figwort family, Scrophulariaceae, native to the southwestern United States and Mexico. It is sometimes placed in the family Myoporaceae. [1] The dozen-odd species are often called "sages", although they have no relationship to the genus Salvia .

Contents

The solitary axillary flowers are bell- or funnel-shaped, with five lobes and two lips, and colors ranging from white to magenta to purple. The generic name is derived from the Greek words λευκός (leukos), meaning "white," and φυλλον (phyllos), meaning "leaf," referring to the trichome-covered foliage. [4]

These shrubs are found in sandy soils and have a high salt tolerance. They have become popular for edge and area plantings in warmer areas and in xeriscaping; they require minimal water, are easily shaped into hedges, and bloom over their entire surface. Cultivars of L. frutescens , L. candidum , L. laevigatum , L. langmaniae , L. pruinosum , L. revolutum , and L. zygophyllum have been developed. [5]

Leucophyllum shrubs are legendary for their ability to "forecast" rain, usually blooming several days prior to a rainstorm, apparently in response to humidity. They are sometimes called "barometer bush" for this reason. It is believed to be a survival trait in the plants' semi-desert habitats.

Selected species

Hybrids

Related Research Articles

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<i>Leucophyllum frutescens</i> Species of flowering plants in the figwort family Scrophulariaceae

Leucophyllum frutescens is an evergreen shrub in the figwort family, Scrophulariaceae, native to the U.S. state of Texas, where it is the official "State Native Shrub of Texas", and to the states of Coahuila, Nuevo León, and Tamaulipas in northern Mexico. Although commonly known as Texas sage, it is not a true sage and is distinct from the genus Salvia. The species is also called Texas Ranger, Texas rain sage, cenizo, Texas silverleaf, Texas barometerbush, ash-bush, wild lilac, purple sage, senisa, cenicilla, palo cenizo, or hierba del cenizo.

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<i>Iva frutescens</i> Species of flowering plant

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<i>Leucophyllum zygophyllum</i> Species of plant

Leucophyllum zygophyllum, the blue ranger or blue rain sage, is a species of flowering plant in the family Scrophulariaceae, native to northeastern Mexico. A shrub with attractive opposite foliage and a habit of flowering before rainstorms, it is recommended for xeriscaping. It is highly heat and drought tolerant, and is cold hardy to USDA zone 8a. There is a cultivar, 'Cimarron', which is somewhat dwarfed, reaching 3 ft (1 m).

References

  1. 1 2 3 "Genus: Leucophyllum Humb. & Bonpl". Germplasm Resources Information Network. United States Department of Agriculture. 2008-01-31. Retrieved 2011-02-17.
  2. USDA, NRCS (n.d.). "Leucophyllum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 2 June 2015.
  3. "Lady Bird Johnson Wildflower Center at The University of Texas at Austin - Leucophyllum frutescens". www.wildflower.org. University of Texas. Retrieved 30 July 2017.
  4. Holloway, Joel Ellis; Neill, Amanda (2005). A Dictionary of Common Wildflowers of Texas & the Southern Great Plains. TCU Press. p. 90. ISBN   978-0-87565-309-9.
  5. "Love those Sages". Mountain States Wholesale Nursery. Archived from the original on 2010-11-25. Retrieved 2010-12-03.
  6. "Leucophyllum". Integrated Taxonomic Information System . Retrieved 2010-04-11.
  7. "Subordinate taxa of Leucophyllum Humb. & Bonpl". Tropicos. Missouri Botanical Garden. Retrieved 2010-12-03.
  8. "Leucophyllums for central Arizona urban landscapes". Arizona State University. Archived from the original on 2011-04-18. Retrieved 2011-02-17.