Perideridia kelloggii
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Apiales
Family:	Apiaceae
Genus:	Perideridia
Species:	P. kelloggii
Binomial name
Perideridia kelloggii (A.Gray) Mathias
Synonyms
Atenia kelloggii (A.Gray) Greene

Perideridia kelloggii is a species of flowering plant in the family Apiaceae known by the common name Kellogg's yampah. It is endemic to California, where it is known from the north and central coasts, the San Francisco Bay Area, and the Sierra Nevada foothills. It grows in grassland habitat, sometimes on serpentine soils. It is a perennial herb which may reach 1.5 meters in maximum height, its slender, erect stem growing from a cluster of long, narrow, fibrous roots each up to 15 centimeters long. Leaves near the base of the plant have blades up to 45 centimeters wide which are divided into many leaflets subdivided into narrow, elongated lobes. The inflorescence is a compound umbel of many spherical clusters of small white flowers. These yield ribbed, oblong-shaped fruits each about half a centimeter long.

External links

• Media related to Perideridia kelloggii at Wikimedia Commons
• Data related to Perideridia kelloggii at Wikispecies
• Jepson Manual Treatment
• USDA Plants Profile
• Photo gallery

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