Lewisia disepala
Encyclopedia
Lewisia disepala is a species of flowering plant in the purslane family
known by the common name Yosemite lewisia.
and short caudex
unit. It produces a basal rosette of many small leaves no more than 1.5 centimeters long. The leaves are thick, fleshy, hairless, deep shiny green, and club-shaped, knobby, or finger-like, clumped tightly together. The inflorescence
has a stem so short that the flowers sit directly on the basal rosette of leaves, or among them. Each flower has 5 to 8 pale to bright pink oval petals and 15 protruding stamens.
, where it is known from several sites high in the mountains. It grows in rocky mountain habitat such as talus
and open beds of bare gravel.
Portulacaceae
Portulacaceae are a family of flowering plants, comprising about 20 genera with about 500 species, ranging from herbaceous plants to shrubs. The family has been recognised by most taxonomists, and is also known as the purslane family; it has a cosmopolitan distribution, with the highest diversity...
known by the common name Yosemite lewisia.
Description
Lewisia disepala is is a petite perennial herb growing from a thick branching taprootTaproot
A taproot is an enlarged, somewhat straight to tapering plant root that grows vertically downward. It forms a center from which other roots sprout laterally.Plants with taproots are difficult to transplant...
and short caudex
Caudex
A caudex is a form of stem morphology appearing as a thickened, short, perennial stem that is either underground or near ground level . It may be swollen for the purpose of water storage, especially in xerophytes...
unit. It produces a basal rosette of many small leaves no more than 1.5 centimeters long. The leaves are thick, fleshy, hairless, deep shiny green, and club-shaped, knobby, or finger-like, clumped tightly together. The 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...
has a stem so short that the flowers sit directly on the basal rosette of leaves, or among them. Each flower has 5 to 8 pale to bright pink oval petals and 15 protruding stamens.
Distribution
Lewisia disepala is endemic to the Sierra Nevada of CaliforniaCalifornia
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...
, where it is known from several sites high in the mountains. It grows in rocky mountain habitat such as talus
Scree
Scree, also called talus, is a term given to an accumulation of broken rock fragments at the base of crags, mountain cliffs, or valley shoulders. Landforms associated with these materials are sometimes called scree slopes or talus piles...
and open beds of bare gravel.