''Jepsonia malvifolia'' is an uncommon species of flowering plant in the

saxifrage family Saxifragaceae is a family of herbaceous perennial flowering plants, within the core eudicot order Saxifragales. The taxonomy of the family has been greatly revised and the scope much reduced in the era of molecular phylogenetic analysis. The fa ...

known by the common name island jepsonia or island button-saxifrage. It is found only on the

Channel Islands of California The Channel Islands () are an eight-island archipelago located within the Southern California Bight in the Pacific Ocean, off the coast of California. The four Northern Channel Islands are part of the Transverse Ranges geologic province, and ...

and

Guadalupe Island Guadalupe Island ( es, Isla Guadalupe, link=no) is a volcanic island located off the western coast of Mexico's Baja California Peninsula and about southwest of the city of Ensenada in the state of Baja California, in the Pacific Ocean. The ...

off

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

. It grows in exposed rock and clay soils on the

chaparral Chaparral ( ) is a shrubland plant community and geographical feature found primarily in the U.S. state of California, in southern Oregon, and in the northern portion of the Baja California Peninsula in Mexico. It is shaped by a Mediterranean c ...

and scrub slopes of the islands. This is a small perennial herb growing up to tall. It produces two or three leaves from a flat

caudex A caudex (plural: caudices) 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.pages 456 and 695 In the strict sense of the term, meaning a stem, "caudex" is m ...

. The green leaves are round or kidney-shaped and edged with ruffled lobes. The plant flowers in fall, producing an

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. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

on a tall peduncle. The tiny flowers have red-veined white, yellowish, or pinkish petals. The fruit is a tan-striped greenish capsule. Its chromosome number is 2n=14.

References

External links

Jepson Manual TreatmentPhoto gallery
Saxifragaceae Flora of California Natural history of the Channel Islands of California Flora of Guadalupe Island Flora without expected TNC conservation status {{Saxifragaceae-stub