Androsace occidentalis
Encyclopedia
Androsace occidentalis is a species of flowering plant in the primrose family
known by the common name western rockjasmine. It is native to much of southern Canada and the central United States, where it occurs in open habitat such as prairie
, especially in moist areas. This is a diminutive annual herb reaching a maximum height of about 7 centimeters. It grows from a basal rosette of oblong hairy leaves no more than one or two centimeters long. It produces an erect inflorescence
which is an umbel
atop a thin, naked peduncle
. The umbel is composed of 5 to 10 tiny flowers, each on a pedicel
up to 3 centimeters long. The flowers have a white or pinkish five-lobed corolla inside a cup of pointed reddish sepal
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Primulaceae
Primulaceae is a family of flowering plants with about 24 genera, including some favorite garden plants and wildflowers. It is also known as the primrose family.- Genera :...
known by the common name western rockjasmine. It is native to much of southern Canada and the central United States, where it occurs in open habitat such as prairie
Prairie
Prairies are considered part of the temperate grasslands, savannas, and shrublands biome by ecologists, based on similar temperate climates, moderate rainfall, and grasses, herbs, and shrubs, rather than trees, as the dominant vegetation type...
, especially in moist areas. This is a diminutive annual herb reaching a maximum height of about 7 centimeters. It grows from a basal rosette of oblong hairy leaves no more than one or two centimeters long. It produces an erect inflorescence
Inflorescence
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. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...
which is an umbel
Umbel
An umbel is an inflorescence which consists of a number of short flower stalks which are equal in length and spread from a common point, somewhat like umbrella ribs....
atop a thin, naked peduncle
Peduncle (botany)
In botany, a peduncle is a stem supporting an inflorescence, or after fecundation, an infructescence.The peduncle is a stem, usually green and without leaves, though sometimes colored or supporting small leaves...
. The umbel is composed of 5 to 10 tiny flowers, each on a pedicel
Pedicel (botany)
A pedicel is a stem that attaches single flowers to the main stem of the inflorescence. It is the branches or stalks that hold each flower in an inflorescence that contains more than one flower....
up to 3 centimeters long. The flowers have a white or pinkish five-lobed corolla inside a cup of pointed reddish sepal
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...
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