''Pholistoma membranaceum'' is a species of flowering plant in the borage family which is known by the common name white fiesta flower. It is native to western North America from central California to Baja California. It can be found in many types of habitat from mountain ravines to beaches to desert scrub generally below elevation. Pholistoma_membranaceum_7856

Description

''Pholistoma membranaceum'' is an annual herb with a waxy, fleshy, bristly stem up to 90 centimeters long and branching profusely, sometimes forming a tangle. The leaves are deeply lobed or cut and borne on winged petioles. The foliage is coated in hairs. The inflorescence consists of

cymes 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 on ...

of 2 to 10 flowers each under a centimeter wide. Each pedicel is . Calyx lobes are oblong and . The flower is white, usually with a purple spot or streak on each of its five lobes.

References

External links

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''Pholistoma membranaceum'' — UC Photo gallery
Hydrophylloideae Flora of California Flora of Baja California Flora of the California desert regions Flora of the Sierra Nevada (United States) Flora of the Sonoran Deserts Natural history of the California chaparral and woodlands Natural history of the Central Valley (California) Natural history of the Colorado Desert Natural history of the Mojave Desert Natural history of the Peninsular Ranges Natural history of the Transverse Ranges Flora without expected TNC conservation status {{Asterid-stub