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Bransford, W.D. and Dolphia
Philadelphus lewisii Pursh
Lewis' mock orange, Mock Orange, California mock orange
Synonym(s): Philadelphus gordonianus, Philadelphus lewisii ssp. gordonianus, Philadelphus lewisii var. angustifolius, Philadelphus lewisii var. ellipticus, Philadelphus lewisii var. gordonianus, Philadelphus lewisii var. helleri, Philadelphus lewisii var. intermedius, Philadelphus lewisii var. oblongifolius, Philadelphus lewisii var. parvifolius, Philadelphus lewisii var. platyphyllus
USDA Symbol: PHLE4
USDA Native Status: L48 (N), CAN (N)
A loosely branched shrub, covered in the spring by many white flowers.
Idahos state flower; when in full bloom the flowers scent the air with a delightfully sweet fragrance reminiscent of orange blossoms. The genus is named for the Egyptian king Ptolemy Philadelphus, and the species name (and one of its common names) honors the scientist-explorer Meriwether Lewis, who first discovered and collected it during his exploration of the Louisiana Purchase. Indians used its straight stems in making arrows.
Plant CharacteristicsDuration: Perennial Habit: Shrub Leaf:
Green Fruit: Size Class:
Bloom InformationBloom Color: White
Bloom Time: Mar , Apr , May , Jun , Jul
, WA Canada: AB
, BC Native Distribution:
British Columbia to central California; east to western Montana. Native Habitat:
Rocky slopes and open banks in open pine woods and mixed woodland.
Growing ConditionsWater Use: Low
Light Requirement: Sun , Part Shade
CaCO3 Tolerance: Medium
BenefitWarning: Some Phacelia species produce a skin irritation in sensitive people, similar to that of poison oak or poison ivy.
Conspicuous Flowers: yes
Fragrant Flowers: yes
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Campbell Family Nursery
- Harmony, NC
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Santa Barbara Botanic Garden
- Santa Barbara, CANative Seed Network
- Corvallis, OR
Record Last Modified: 2009-04-15
Research By: TWC Staff