Sidalcea hartwegii
Encyclopedia
Sidalcea hartwegii is a species of flowering plant in the mallow family
known by the common names valley checkerbloom and Hartweg's checkerbloom. It is endemic to California
, where it grows in the Sacramento Valley
and adjacent foothills to the east and west. It can sometimes be found on serpentine soil
s. This annual herb produces a slender stem up to 30 centimeters tall, mostly hairless with occasional branching hairs. The leaf blades are deeply divided into five to seven narrow linear lobes. The inflorescence
is a clustered panicle
of four to six flowers, each with five purplish pink petals about 2 centimeters long.
Malvaceae
Malvaceae, or the mallow family, is a family of flowering plants containing over 200 genera with close to 2,300 species. Judd & al. Well known members of this family include okra, jute and cacao...
known by the common names valley checkerbloom and Hartweg's checkerbloom. It is endemic to 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...
, where it grows in the Sacramento Valley
Sacramento Valley
The Sacramento Valley is the portion of the California Central Valley that lies to the north of the San Joaquin-Sacramento Delta in the U.S. state of California. It encompasses all or parts of ten counties.-Geography:...
and adjacent foothills to the east and west. It can sometimes be found on serpentine soil
Serpentine soil
A serpentine soil is derived from ultramafic rocks, in particular serpentinite, a rock formed by the hydration and metamorphic transformation of ultramafic rock from the Earth's mantle....
s. This annual herb produces a slender stem up to 30 centimeters tall, mostly hairless with occasional branching hairs. The leaf blades are deeply divided into five to seven narrow linear lobes. 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...
is a clustered panicle
Panicle
A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes....
of four to six flowers, each with five purplish pink petals about 2 centimeters long.