Physaria hemiphysaria

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Physaria hemiphysaria
Status TNC G4.svg
Apparently Secure  (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Physaria
Species:P. hemiphysaria
Binomial name
Physaria hemiphysaria
Synonyms

Lesquerella hemiphysaria

Physaria hemiphysaria (formerly Lesquerella hemiphysaria) is a species of flowering plant in the mustard family known by the common names Intermountain bladderpod and skyline bladderpod. It is endemic to Utah in the United States, where it grows on rocky ridges and outcrops of sandstone, shale, clay, and sand.

Brassicaceae family of plants

Brassicaceae or Cruciferae is a medium-sized and economically important family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family. Most are herbaceous plants, some shrubs, with simple, although sometimes deeply incised, alternatingly set leaves without stipules or in leaf rosettes, with terminal inflorescences without bracts, containing flowers with four free sepals, four free alternating petals, two short and four longer free stamens, and a fruit with seeds in rows, divided by a thin wall.

Endemism Ecological state of being unique to a defined geographic location or habitat

Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. The extreme opposite of endemism is cosmopolitan distribution. An alternative term for a species that is endemic is precinctive, which applies to species that are restricted to a defined geographical area.

Utah A state of the United States of America

Utah is a state in the western United States. It became the 45th state admitted to the U.S. on January 4, 1896. Utah is the 13th-largest by area, 30th-most-populous, and 11th-least-densely populated of the 50 United States. Utah has a population of more than 3 million according to the Census estimate for July 1, 2016. Urban development is mostly concentrated in two areas: the Wasatch Front in the north-central part of the state, which contains approximately 2.5 million people; and Washington County in Southern Utah, with over 160,000 residents. Utah is bordered by Colorado to the east, Wyoming to the northeast, Idaho to the north, Arizona to the south, and Nevada to the west. It also touches a corner of New Mexico in the southeast.

This perennial herb produces stout, decumbent stems up to 10 or 20 centimeters long from a caudex. The leaves are up to 5.5 centimeters long, the upper ones smaller. The basal leaves may have toothed edges and the upper ones are smooth-edged. The inflorescence is a raceme of flowers with narrow yellow petals. The fruit is a silique a few millimeters long. [1]

Caudex

A caudex of a plant is a stem, but the term is also used to mean a rootstock and particularly a basal stem structure from which new growth arises.

Inflorescence Term used in botany to describe a cluster of flowers

An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. Inflorescence can also be defined as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern.

A raceme is an unbranched, indeterminate type of inflorescence bearing pedicellate flowers along its axis. In botany, an axis means a shoot, in this case one bearing the flowers. In indeterminate inflorescence-like racemes, the oldest flowers are borne towards the base and new flowers are produced as the shoot grows, with no predetermined growth limit. A plant that flowers on a showy raceme may have this reflected in its scientific name, e.g. Cimicifuga racemosa. A compound raceme, also called a panicle, has a branching main axis. Examples of racemes occur on mustard and radish plants.

There are two subspecies of this plant. The ssp. hemiphysaria occurs on the Wasatch Plateau of Utah, while ssp. lucens (Tavaputs bladderpod [2] or Range Creek bladderpod [3] ) is limited to the West Tavaputs Plateau.

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<i>Physaria obcordata</i> species of plant

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<i>Physaria didymocarpa</i> species of plant

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<i>Physaria parvula</i> species of plant

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<i>Physaria thamnophila</i> flower in the mustard family

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<i>Physaria tumulosa</i> flower in the mustard family

Physaria tumulosa is a rare species of flowering plant in the mustard family known by the common name Kodachrome bladderpod. It is endemic to Utah in the United States, where it is known only from Kane County. There is only one known population of this plant made up of scattered occurrences totalling about 20,000 individuals, all within the Kodachrome Basin. The plant is threatened by the loss and degradation of its habitat. It is federally listed as an endangered species. It was previously treated as a subspecies of Physaria hitchcockii.

Physaria navajoensis, the Navajo twinpod or Navajo bladderpod, is a plant species native the US states of Arizona, Utah, and New Mexico. It is known from only one county in Arizona (Apache), one in Utah (Kane) and two counties in New Mexico. Much of the plant's range is on land of the Navajo Nation. The plant occurs in open, sunny locations at elevations of 2200–2400 m.

References

  1. ↑ Physaria hemiphysaria. Flora of North America.
  2. ↑ ssp. lucens. Flora of North America.
  3. ↑ ssp. lucens. Flora of North America.
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