Salazaria
Encyclopedia
Salazaria mexicana, commonly known by variants on bladder sage or paperbag bush, is a shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...

 of the mint family Lamiaceae
Lamiaceae
The mints, taxonomically known as Lamiaceae or Labiatae, are a family of flowering plants. They have traditionally been considered closely related to Verbenaceae, but in the 1990s, phylogenetic studies suggested that many genera classified in Verbenaceae belong instead in Lamiaceae...

 distinctive for its calyx
Sepal
A sepal is a part of the flower of angiosperms . Collectively the sepals form the calyx, which is the outermost whorl of parts that form a flower. Usually green, sepals have the typical function of protecting the petals when the flower is in bud...

 lobes that develop into small bag- or bladder-like shells around the fruits. Widespread in the southwestern part of North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

, it is the only member of its genus.

This plant takes the form of a rounded shrub, typically 50-100 cm high, sometimes larger. The stems form a spreading rigid pattern, with the tips often becoming spine-like. The leaves are small, 3-15 mm long and 2-8 mm wide, ovate to elliptic, entire, and with a very short or nonexistent petiole
Petiole (botany)
In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...

. The 2-lipped flowers develop in pairs facing away from each other; the upper lip is white to light violet and hairy, while the lower lip is 3-lobed and intense dark violet. The calyx starts out as simply a base to the flower, reddish-purple in shade, and then as the flower ages, it expands into its distinctive bag shape, 1-2 cm across, the dried flower eventually falling out of the hole in the end.

Flowering is generally April through June, but the bags are durable and may last on the plant into winter, becoming dry and papery.

These bushes occupy a variety of habitats in their range, including washes, gravelly or sandy slopes, shrubland, and woodland, often growing intermixed with other shrubs. The range extends from the eastern slopes of the Sierra Nevada and the deserts of California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, east to Texas
Texas
Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...

 and south into Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. They are relatively common; although both the foliage and flowers are sparse, the distinctive pattern of bags makes them easy to spot from a distance.

The genus is named after astronomer José Salazar y Larregui, Mexican commissioner for the United States and Mexican Boundary Survey
United States and Mexican Boundary Survey
The United States and Mexican Boundary Survey set the boundary between the United States and Mexico according to the Treaty of Guadalupe Hidalgo that ended the Mexican-American War. The results of the survey were published in a three-volume work, Report on the United States and Mexican boundary...

of 1848-55.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK