
California Fetid Adderstongue
scoliopus bigelovii
The California Fetid Adderstongue is an extraordinary and enigmatic wildflower native to the damp, deeply shaded redwood forests of Northern California. Emerging during the wet, chilly months of winter and early spring, this small perennial heralds the changing seasons long before most other forest plants begin to wake. Its unique name stems from the pungent, mushroom-like aroma emitted by its flowers, which mimics the scent of decaying matter to attract its primary pollinators, fungus gnats. Beyond its intriguing scent, this plant is characterized by its pair of beautifully mottled green leaves that hug the forest floor, framing delicate, intricately patterned flowers. Observing this botanical gem in its natural habitat offers a fascinating glimpse into the complex evolutionary strategies of forest floor understory plants. If you want to identify California Fetid Adderstongue in the wild, use the Snappit app.
Habitat: Found in deep shade on the damp, moist floors of coastal redwood and Douglas fir forests, often near streams or in dense leaf litter.
Appearance
This low-growing perennial features a single pair of broad, oval-shaped leaves, measuring 10 to 20 centimeters in length, which are bright green and prominently mottled with dark purple or brown spots. From the center of these leaves arise several slender, curving flower stalks, each bearing a single small blossom. The flowers have three narrow, spreading sepals striped with rich brownish-purple, contrasting with three tiny, needle-like petals that curve over the reproductive organs, giving the entire bloom an elegant, spider-like appearance.

Category
PlantsRarity
Common
Danger
1/5 ยท Very low
Snaps
Be the first to snap!
Interesting facts
Its seeds have a fleshy, nutrient-rich appendage called an elaiosome, which acts as a delicious reward for ants that carry the seeds away to plant them.
The common name 'fetid adderstongue' comes from the flower's unpleasant mushroom-like or rotten smell, which mimics decaying matter.
This species is among the absolute earliest wildflowers to bloom in Northern California, often opening its flowers in January when temperatures are near freezing.
Special abilities
Fungal Mimicry
The flowers release a pungent, musty scent resembling rotting fungi or organic matter to lure in unsuspecting fungus gnats.
Ant-Assisted Dispersal
The seeds feature nutrient-rich structures called elaiosomes that entice ants to carry them back to their nests, dispersing the plant.
Early Winter Bloom
Its early flowering cycle allows it to bloom between January and March, capturing sunlight and pollinator attention before the forest canopy closes.
Measurements & details
- Length
- 5-25 cm
- Weight
- 0.01-0.05 kg
- Lifespan
- 5-20 years
- Clutch Size
- 10-35
- Incubation
- 60-120 days
Diet & Feeding
As a photoautotrophic plant, it produces its own energy through photosynthesis, utilizing sunlight, carbon dioxide, and soil nutrients.
Primary Foods
- Sunlight
- Water
- Carbon dioxide
- Soil nutrients
Ecological connections
Fungus Gnat
Mycetophila fungorum
Pollinated by adult fungus gnats attracted by the flower's fetid smell.
Western Thacking Ant
Formica obscuripes
Ants collect the seeds for their lipid-rich elaiosomes, dispersing them to new locations.
Coast Redwood
Sequoia sempervirens
Grows in the deep shade and moist, acidic leaf litter provided by Coast Redwood trees.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
Collections
Collections for this object will appear here as more themes are added.
Safety
Danger
1/5 ยท Very low
No special safety notes yet.
Frequently Asked Questions
How to identify California Fetid Adderstongue?
The easiest way to identify California Fetid Adderstongue is to use the Snappit nature identifier app.
How long is California Fetid Adderstongue?
5-25 cm
How much does California Fetid Adderstongue weigh?
0.01-0.05 kg
How long does California Fetid Adderstongue live?
5-20 years
What does California Fetid Adderstongue eat?
As a photoautotrophic plant, it produces its own energy through photosynthesis, utilizing sunlight, carbon dioxide, and soil nutrients.
Where is California Fetid Adderstongue usually found?
Found in deep shade on the damp, moist floors of coastal redwood and Douglas fir forests, often near streams or in dense leaf litter.
How many eggs does California Fetid Adderstongue lay?
10-35
How long do California Fetid Adderstongue eggs take to hatch?
60-120 days
Snap Map
Zoom in to split clusters and explore where this object has been snapped.
Recent Snaps
Recent snaps will appear here as new observations are added.
Where to spot

California, US
Armstrong Redwoods State Natural Reserve
You might spot Redwood Sorrel, Redwood, and Button's Banana Slug.
View guide โ

California, US
Audubon Canyon
You might spot Hilton's Aeolid and Opalescent Nudibranch.
View guide โ

California, US
Headwaters Forest Reserve
You might spot Pacific Banana Slug and Pacific Trillium.
View guide โ


_BHL23630333.jpg&width=800)









