Tall Blacktip Ragwort
探検植物
Tall Blacktip Ragwort
senecio atratus
The Tall Blacktip Ragwort (Senecio atratus) is a striking perennial herb native to the high-elevation meadows and rocky slopes of the western United States. Growing robustly in the challenging alpine and subalpine zones, this member of the aster family stands out with its tall, leafy stems capped by clusters of vibrant yellow flower heads. It plays an important role in stabilizing loose montane soils and providing nectar to specialized alpine pollinators. Despite the harsh mountain winds and intense solar radiation, this resilient plant thrives where few others can, utilizing specialized chemical defenses to deter herbivores. Its presence adds a splash of brilliant color to the rugged, stone-filled landscapes of the Rocky Mountains. Naturalists and hikers often encounter it along high-altitude trails, where it serves as a beautiful indicator of a healthy, undisturbed montane ecosystem.
生息地: Typically found on high-elevation rocky slopes, talus fields, subalpine meadows, and open coniferous forests.
外見
This species is a tall, erect perennial herb reaching 30 to 100 centimeters in height. Its sturdy, ribbed stems are leafy and may have sparse, woolly hairs when young. The leaves are broadly lance-shaped with coarsely toothed margins, often pale green to grayish-green. The defining visual characteristic is its dense, flat-topped clusters of narrow, cylindrical yellow flower heads. Each flower head is wrapped in a cup of green bracts (phyllaries) that feature distinct, starkly contrasting black tips. The flower heads mostly consist of disk florets, though a few short, inconspicuous yellow ray florets may sometimes be present at the outer edges.
界Plantae門Tracheophyta綱Magnoliopsida目Asterales科Asteraceae属Senecio
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
It is incredibly hardy, often growing directly out of cracks in solid rock and scree fields above the tree line.
The common name 'blacktip' refers to the distinct, charcoal-black tips on the bracts surrounding each flower head, resembling miniature painted matchsticks.
The toxic alkaloids in this plant are preserved during drying, allowing picas to store them in haypiles where the toxins decay slowly, keeping the food fresh for winter.
特殊能力
能力
Pyrrolizidine Alkaloid Defense
Produces toxic secondary metabolites that deter herbivores and insects from feeding on its foliage.
能力
Woolly Insulation
Features fine, woolly hairs on young leaves and stems to trap moisture and protect tissues from freezing alpine temperatures.
能力
Soil-binding Taproot
Develops a deep, sturdy taproot system that anchors the plant securely in unstable talus and rocky soils.
サイズと詳細
- 長さ
- 30-100 cm
- 寿命
- 3-10 年
- 一度の産卵数
- 100-1000
- 抱卵期間
- 14-30 日
食性と食事
As an autotrophic plant, it produces its own food through photosynthesis, converting sunlight, water, and carbon dioxide into sugars.
主な食物
- Sunlight
- Carbon dioxide
- Water
- Soil nutrients
生態系とのつながり
mutualism
Hunt Bumblebee
Bombus huntii
Feeds on nectar and serves as a major pollinator for the flowers.
eaten by
American Pika
Ochotona princeps
Harvests the plant for winter haypiles, utilizing the plant's toxic alkaloids as a natural preservative.
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
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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
Tall Blacktip Ragwortを見分けるには？
Tall Blacktip Ragwort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。
Tall Blacktip Ragwortの長さは何ですか？
30-100 cm
Tall Blacktip Ragwortの寿命は何ですか？
3-10 年
Tall Blacktip Ragwortは何を食べますか？
As an autotrophic plant, it produces its own food through photosynthesis, converting sunlight, water, and carbon dioxide into sugars.
Tall Blacktip Ragwortは通常どこに生息していますか？
Typically found on high-elevation rocky slopes, talus fields, subalpine meadows, and open coniferous forests.
Tall Blacktip Ragwortの一度の産卵数は何ですか？
100-1000
Tall Blacktip Ragwortの抱卵期間は何ですか？
14-30 日
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