American Alyssum
探検植物
American Alyssum
odontarrhena obovata
The American Alyssum (Odontarrhena obovata) is a resilient, low-growing perennial herb belonging to the mustard family. This hardy species is adapted to thrive in some of the most challenging environments on Earth, such as subalpine and alpine tundra, rocky mountain slopes, and metal-rich serpentine barrens. Its ability to colonize barren soils and survive freezing temperatures makes it an important pioneer species in northern latitudes, helping to stabilize gravelly substrates and initiate soil development.
生息地: Found on rocky slopes, gravelly scree, alpine tundra, and serpentine soils in cold temperate and arctic regions.
外見
American Alyssum forms low, spreading cushions or mats of woody-based stems reaching 5 to 20 centimeters in height. Its small, paddle-shaped (obovate) leaves are covered in a dense layer of tiny, silvery, star-shaped hairs, giving the foliage a distinct grayish-green or dusty appearance. In mid-summer, it produces dense, rounded clusters of tiny, bright yellow flowers, each featuring the characteristic four petals of the mustard family.
界Plantae門Tracheophyta綱Magnoliopsida目Brassicales科Brassicaceae属Odontarrhena
カテゴリ
植物レア度
Common
危険度
1/5 · 非常に低い
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おもしろい事実
The genus name Odontarrhena translates to 'toothed male' in Greek, referring to the characteristic shape of the filaments in the stamens of some species.
The silvery hairs that cover its leaves are so dense that they can make the entire plant look frosted even on warm summer days.
This plant is used by scientists in phytoremediation studies to explore how plants can clean up heavy-metal-polluted industrial soils.
特殊能力
能力
Nickel Hyperaccumulation
It can safely absorb and store high concentrations of toxic heavy metals, particularly nickel, from serpentine soils in its tissues.
能力
Stellate Hair Shield
Its leaves are densely covered in star-shaped hairs that reflect excess solar radiation and reduce water loss from dry winds.
能力
Frost Resistance
It produces specialized proteins and sugars that act as natural antifreeze, protecting its cellular structure during sudden freezes.
サイズと詳細
- 長さ
- 5-20 cm
- 体重
- 0.01-0.1 kg
- 寿命
- 3-10 年
- 抱卵期間
- 14-30 日
食性と食事
As a photoautotroph, this plant produces its own food using sunlight, carbon dioxide, water, and minerals absorbed through its roots.
主な食物
- Sunlight
- Water
- Carbon dioxide
- Soil minerals
生態系とのつながり
eaten by
Cabbage White
Pieris rapae
Caterpillars feed on the foliage of this plant as a primary food source.
mutualism
Arctic Bumblebee
Bombus polaris
Provides vital nectar and pollen during the short arctic summer.
competitor
Moss Campion
Silene acaulis
Competes for space and sparse nutrients in dry alpine gravel soils.
特徴
このオブジェクトにはまだ特徴バッジが割り当てられていません。
別名
まだ別名はありません。
コレクション
テーマが追加されると、このオブジェクトのコレクションがここに表示されます。
安全性
危険度
1/5 · 非常に低い
まだ特別な安全上の注意はありません。
よくある質問
American Alyssumを見分けるには？
American Alyssumを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。
American Alyssumの長さは何ですか？
5-20 cm
American Alyssumの体重は何ですか？
0.01-0.1 kg
American Alyssumの寿命は何ですか？
3-10 年
American Alyssumは何を食べますか？
As a photoautotroph, this plant produces its own food using sunlight, carbon dioxide, water, and minerals absorbed through its roots.
American Alyssumは通常どこに生息していますか？
Found on rocky slopes, gravelly scree, alpine tundra, and serpentine soils in cold temperate and arctic regions.
American Alyssumの抱卵期間は何ですか？
14-30 日
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