Venus'S Looking-Glass
ExplorePlants
Venus'S Looking-Glass
triodanis biflora
Venus's Looking-Glass (Triodanis biflora) is a charming, slender annual wildflower native to the Americas. Commonly found gracing roadsides, fallow fields, and rocky glades, this plant is best known for its bright, star-shaped purple flowers. Its resilience allows it to thrive in nutrient-poor and highly disturbed soils where other plants struggle, making it a pioneer species of sorts in post-clearing landscapes. What makes this species particularly fascinating is its reproductive strategy. It employs a mixed-mating system utilizing both open, insect-pollinated flowers and closed, self-pollinating flowers. This dual mechanism ensures that the plant can produce seeds even in years when pollinator populations are low, securing its lineage across diverse and unpredictable environments.
Habitat: Typically found in disturbed sites, open fields, roadsides, and glades with sandy or rocky soil.
Appearance
This slender, erect herb grows between 10 to 45 cm tall, featuring simple, mostly unbranched stems covered in fine hairs. The leaves are small, sessile, and clasping, with an ovate to lanceolate shape. The flowers are arranged along the upper stem; the lower flowers are small, green, and bud-like (never opening), while the upper flowers burst into bright violet-blue stars, each with five pointed petals and a white center, measuring about 1 to 1.5 cm across.
KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderAsteralesFamilyCampanulaceaeGenusTriodanis
Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
Be the first to snap!
Interesting facts
It produces two distinct types of flowers: the lower ones never open and self-pollinate in secret, a process known as cleistogamy.
The common name 'Venus's Looking-Glass' comes from an old European folklore tale that the plant resembled a mirror dropped by Venus, the Roman goddess of love.
The seeds are tiny and dust-like, easily dispersed by wind or passing animals through small pores in the sides of its dry seed capsules.
Special abilities
Ability
Cleistogamous Selfing
Produces self-pollinating flowers near the base that never open, ensuring seed production even in the total absence of insect pollinators.
Ability
Poricidal Dehiscence
Releases its minuscule seeds through small pores in the sides of the dry seed capsules, letting the wind distribute them gradually.
Ability
Soil Adaptability
Thrives in dry, compacted, or nutrient-poor sandy soils, outcompeting less hardy species in degraded habitats.
Measurements & details
- Length
- 10-45 cm
- Lifespan
- 1 years
Diet & Feeding
As a photosynthetic plant, it manufactures its own organic compounds using sunlight, carbon dioxide, water, and soil minerals.
Primary Foods
- Sunlight
- Carbon dioxide
- Water
- Soil nutrients
Ecological connections
mutualism
Sweat Bee
Lasioglossum vierecki
Feeds on pollen and nectar while acting as a key pollinator for chasmogamous flowers.
eaten by
White-tailed Deer
Odocoileus virginianus
Occasionally browses on the foliage of Venus's Looking-Glass.
competitor
Common Dandelion
Taraxacum officinale
Competes for space, light, and nutrients in open, disturbed grasslands.
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 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Venus'S Looking-Glass?
The easiest way to identify Venus'S Looking-Glass is to use the Snappit nature identifier app.
How long is Venus'S Looking-Glass?
10-45 cm
How long does Venus'S Looking-Glass live?
1 years
What does Venus'S Looking-Glass eat?
As a photosynthetic plant, it manufactures its own organic compounds using sunlight, carbon dioxide, water, and soil minerals.
Where is Venus'S Looking-Glass usually found?
Typically found in disturbed sites, open fields, roadsides, and glades with sandy or rocky soil.
Snap Map
Zoom in to split clusters and explore where this object has been snapped.
Loading map…
Recent Snaps
Recent snaps will appear here as new observations are added.
