Triphysaria eriantha

Triphysaria eriantha
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Lamiales
Family: Orobanchaceae
Genus: Triphysaria
Species: T. eriantha
Binomial name
Triphysaria eriantha
(Benth.) T.I.Chuang & Heckard

Triphysaria eriantha is a species of flowering plant in the broomrape family, known by the common names johnny-tuck[1] and butter-and-eggs.

It is native to California and southwestern Oregon, where it grows in many types of habitats including chaparral, becoming quite common in some areas.

Description

Triphysaria eriantha is an annual herb producing a hairy purple stem up to about 35 centimeters in maximum height. Like many species in its family, it is a facultative root parasite on other plants, attaching to their roots via haustoria to tap nutrients. Its green or purplish leaves are up to 5 centimeters long and are divided into a few narrow, pointed lobes.

The inflorescence is a spike of flowers. Each flower has a very thin, narrow upper lip which is purple in color, and a wide lower lip which is divided into three pouches. The color of the pouches depends on subspecies: the common ssp. eriantha has white and bright yellow pouches, and the less common coastal ssp. rosea has white pouches tinged with pink.

References

  1. "Triphysaria eriantha". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 15 December 2015.


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