Western Leatherwood
ExplorePlants
Western Leatherwood
dirca occidentalis
The Western Leatherwood (Dirca occidentalis) is an extraordinary and rare deciduous shrub endemic to the San Francisco Bay Area of California. Belonging to the Daphne family, this plant is famous for its remarkably pliable, leather-like wood and branches, which can be bent into complete knots without breaking. It occupies moist, shaded slopes and riparian corridors, playing a vital role in early-season woodland ecosystems. Despite its tough constitution, it is highly sensitive to habitat fragmentation and changes in local hydrology, making it a prized sighting for California native plant enthusiasts. Can you find a Western Leatherwood? Log it and verify its identity with the Snappit app.
Habitat: Found on moist, shaded, north-facing slopes and in wooded canyons within mixed evergreen forests of the San Francisco Bay Area.
Appearance
This slow-growing shrub reaches 1 to 2.5 meters in height, exhibiting a highly branched, rounded form with smooth, dark brown or greyish bark. In late winter, before its leaves appear, the shrub produces hanging clusters of small, pale yellow, tube-shaped flowers. Its leaves, which develop later, are alternate, broadly oval to egg-shaped, light green on top and slightly paler underneath, eventually turning a gentle yellow before shedding in the summer drought.
KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderMalvalesFamilyThymelaeaceaeGenusDirca
Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
The branches are so incredibly flexible and strong that Native Americans used them as ropes, straps, and materials for basketry.
The genus name 'Dirca' is named after Dirce, a figure in Greek mythology, referring to a spring, highlighting the plant's preference for wet habitats.
Unlike most deciduous plants that shed leaves in autumn, Western Leatherwood often loses its leaves in mid-summer as a drought-survival strategy.
Special abilities
Ability
Extreme Wood Elasticity
The wood and bark possess incredibly tough, flexible fibers that allow branches to bend into tight knots without fracturing.
Ability
Winter Flowering Peak
Blooms in the depth of winter before producing leaves, capturing the attention of early-season pollinators when competition is low.
Ability
Summer Dormancy
Drops its leaves during the dry summer months to conserve water, adapting perfectly to the Mediterranean climate.
Measurements & details
- Length
- 100-250 cm
- Lifespan
- 30-80 years
Diet & Feeding
As a photoautotrophic plant, Western Leatherwood synthesizes its own food from sunlight, carbon dioxide, and water through photosynthesis.
Primary Foods
- Sunlight
- Carbon dioxide
- Water
- Soil nutrients
Foraging Method
- Photosynthesis
Ecological connections
mutualism
Yellow-faced Bumble Bee
Bombus vosnesenskii
Visits flowers for nectar, acting as one of the primary winter pollinators.
eaten by
North American Deer Mouse
Peromyscus maniculatus
Feeds on the nutrient-rich seeds that fall to the forest floor.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
Collections
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Western Leatherwood?
The easiest way to identify Western Leatherwood is to use the Snappit nature identifier app.
How long is Western Leatherwood?
100-250 cm
How long does Western Leatherwood live?
30-80 years
What does Western Leatherwood eat?
As a photoautotrophic plant, Western Leatherwood synthesizes its own food from sunlight, carbon dioxide, and water through photosynthesis.
Where is Western Leatherwood usually found?
Found on moist, shaded, north-facing slopes and in wooded canyons within mixed evergreen forests of the San Francisco Bay Area.
How does Western Leatherwood hunt?
Photosynthesis
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Where to spot
Park25 sightings12 species
California, US
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Park30 sightings12 species
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Jasper Ridge Biological Preserve
You might spot Warrior's Plume, Western Leatherwood, and White Globe Lily.
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