Pholistoma membranaceum

Pholistoma membranaceum is a species of flowering plant in the borage family which is known by the common name white fiesta flower.

Pholistoma membranaceum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Boraginales
Family: Boraginaceae
Genus: Pholistoma
Species:
P. membranaceum
Binomial name
Pholistoma membranaceum
(Benth.) Constance

It is native to western North America from central California to Baja California.[1] It can be found in many types of habitat from mountain ravines to beaches to desert scrub generally below 4,500 feet (1,400 m) elevation.[1]

Leaves are deeply lobed or cut.

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.[2]

The inflorescence consists of cymes of 2 to 10 flowers each under a centimeter wide. Each pedicel is 5–20 millimetres (0.2–0.8 in). Calyx lobes are oblong and 1–3 millimetres (0.04–0.12 in). The flower is white, usually with a purple spot or streak on each of its five lobes.[2]

References
  1. Sullivan, Steven. K. (2018). "Pholistoma membranaceum". Wildflower Search. Retrieved 2018-07-06.
  2. "Pholistoma membranaceum". in Jepson Flora Project (eds.) Jepson eFlora. Jepson Herbarium; University of California, Berkeley. 2018. Retrieved 2018-07-06.


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