Austrian Whitlow-Grass
ExplorePlants
Austrian Whitlow-Grass
draba dubia
The Austrian Whitlow-Grass (Draba dubia) is a resilient, low-growing alpine perennial that thrives where few other plants dare to venture. Clinging to rocky crevices, scree slopes, and windswept mountain ridges across Europe's high-altitude ranges, this diminutive member of the mustard family showcases the incredible endurance of alpine flora. Despite the harsh climates, it bursts into delicate blooms during the brief alpine summer, providing crucial resources for high-altitude pollinators. Adapted to freezing temperatures, intense UV radiation, and nutrient-poor soils, Austrian Whitlow-Grass forms compact, ground-hugging cushions or rosettes. This growth form protects it from biting mountain winds and helps trap heat close to the ground, demonstrating how miniature scale can be an evolutionary superpower in extreme environments.
Habitat: Found primarily in rocky subalpine and alpine zones, colonizing limestone crevices, gravelly scree, and windswept mountain ridges.
Appearance
This petite perennial typically reaches heights of only 5 to 15 centimeters, forming a neat basal rosette of grayish-green, spoon-shaped leaves. These leaves are covered in a dense coat of fine, star-shaped (stellate) hairs, giving the foliage a slightly frosty or woolly appearance that helps retain moisture. During late spring and summer, slender, leafless stems arise from the rosette, topped by small clusters of four-petaled white flowers. Following pollination, the plant develops distinctive, flattened, lance-shaped seed pods called siliques, which twist slightly as they mature.
KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderBrassicalesFamilyBrassicaceaeGenusDraba
Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Despite its fragile appearance, this plant can survive temperatures far below freezing even during its active flowering phase.
Its seeds are adapted to be dispersed by mountain winds, but also by water washing down steep alpine slopes.
The common name Whitlow-Grass comes from a traditional herbal belief that species in the Draba genus could cure whitlows, which are painful infections of the fingernail.
Special abilities
Ability
Stellate Hair Shield
Dense, star-shaped hairs on its leaves trap a boundary layer of air to reduce water loss from wind and reflect harsh high-altitude UV radiation.
Ability
Freeze Tolerant Sap
Accumulates soluble sugars and protective proteins in its cells to prevent ice crystal damage during sudden mountain frosts.
Ability
Chasmophytic Rooting
Features a strong, penetrating taproot system capable of anchoring securely in tiny rock crevices to extract scarce moisture and nutrients.
Measurements & details
- Length
- 5-15 cm
- Lifespan
- 3-10 years
Diet & Feeding
As a photoautotroph, the Austrian Whitlow-Grass produces its own energy through photosynthesis, utilizing sunlight, carbon dioxide, and soil minerals.
Primary Foods
- Sunlight
- Carbon Dioxide
- Water
- Soil Minerals
Foraging Method
- Photosynthesis
Ecological connections
mutualism
Alpine Bumblebee
Bombus alpinus
Pollinated by alpine insects seeking nectar in the early summer.
eaten by
Chamois
Rupicapra rupicapra
Foraged upon by high-altitude grazing herbivores.
host plant
Peak White Butterfly
Pontia callidice
Larvae feed on the leaves of various alpine brassicas.
Traits
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Also known as
No aliases listed yet.
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Austrian Whitlow-Grass?
The easiest way to identify Austrian Whitlow-Grass is to use the Snappit nature identifier app.
How long is Austrian Whitlow-Grass?
5-15 cm
How long does Austrian Whitlow-Grass live?
3-10 years
What does Austrian Whitlow-Grass eat?
As a photoautotroph, the Austrian Whitlow-Grass produces its own energy through photosynthesis, utilizing sunlight, carbon dioxide, and soil minerals.
Where is Austrian Whitlow-Grass usually found?
Found primarily in rocky subalpine and alpine zones, colonizing limestone crevices, gravelly scree, and windswept mountain ridges.
How does Austrian Whitlow-Grass hunt?
Photosynthesis
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