
Purple Owl'S-Clover
castilleja exserta
Meet the Purple Owl's-Clover, a vibrant annual wildflower that brings dazzling splashes of color to the open fields and grasslands of western North America. Despite its name, it is not a true clover; rather, it is a member of the broomrape family (Orobanchaceae) and a close relative of the Indian paintbrushes. This remarkable plant is famous not only for its stunning, brush-like pinkish-purple spikes but also for its fascinating, under-the-radar lifestyle as a hemiparasite. It quietly taps into the root systems of neighboring vegetation to steal water and essential nutrients, which allows it to thrive in arid conditions. Watching a field carpeted in these magenta spikes alongside yellow goldfields is one of the most iconic spring sights of the West Coast.
生息地: Found in open, sunny grasslands, chaparral, and coastal sage scrub communities across California and the Southwest.
外見
Purple Owl's-Clover grows as an erect annual stem reaching 10 to 45 centimeters in height. It is highly recognizable by its dense, paintbrush-like flower spikes crowded with bright pink, purple, or magenta bracts. Tucked within these colorful bracts are the actual flowers, which feature a distinct, white or yellow-tipped lower lip with two dark purple dots, giving them an uncanny resemblance to the face and eyes of a tiny owl.

カテゴリ
植物レア度
Common
危険度
1/5 · 非常に低い
スナップ
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おもしろい事実
By stealing toxic chemicals from host plants like lupines, it essentially crafts its own chemical shield against hungry rabbits and deer.
Despite its name, it is not a true clover but actually belongs to the broomrape family, Orobanchaceae.
The common name 'Owl's-clover' comes from the shape of the petals nested inside the colorful bracts, which mimic a tiny owl's head.
特殊能力
Root Hemiparasitism
Uses specialized root structures called haustoria to invade and attach to the root systems of neighboring plants, extracting water and essential minerals.
Chemical Stealing
Sequesters toxic alkaloids from its host plants, which makes its own tissues toxic and highly unpalatable to grazing herbivores.
Synchronized Spring Bloom
Completes its entire lifecycle rapidly in early spring, producing seeds that can lie dormant through the hot, dry summer months.
サイズと詳細
- 長さ
- 10+ cm
- 寿命
- 1+ 年
食性と食事
As a photosynthetic hemiparasite, it manufactures sugars through photosynthesis but absorbs water and inorganic nutrients directly from host plant roots.
主な食物
- Water
- Minerals
- Nitrogen
- Alkaloids
- Carbon dioxide
生態系とのつながり
Edith's Checkerspot
Euphydryas editha
Serves as a host plant for larvae, which consume the plant and sequester its toxic defense compounds.
Yellow-faced Bumblebee
Bombus vosnesenskii
Rely on these large bees for pollination as they squeeze into the complex flower structures.
Sky Lupine
Lupinus nanus
Commonly parasitized by Purple Owl's-Clover, which taps its roots to steal water and defensive alkaloids.
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
Purple Owl'S-Cloverを見分けるには?
Purple Owl'S-Clover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。
Purple Owl'S-Cloverの長さは何ですか?
10+ cm
Purple Owl'S-Cloverの寿命は何ですか?
1+ 年
Purple Owl'S-Cloverは何を食べますか?
As a photosynthetic hemiparasite, it manufactures sugars through photosynthesis but absorbs water and inorganic nutrients directly from host plant roots.
Purple Owl'S-Cloverは通常どこに生息していますか?
Found in open, sunny grasslands, chaparral, and coastal sage scrub communities across California and the Southwest.
スナップマップ
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最近のスナップ
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観察場所

California, US
Antelope Valley California Poppy Reserve State Natural Reserve
ここで見られるかも カリフォルニアポピー, ワキモンユタトカゲ と ファセリア.
ガイドを見る →
California, US
Black Diamond Mines Regional Preserve
ここで見られるかも Warrior's Plume, Purple Owl's-Clover と Woolly Paintbrush.
ガイドを見る →
California, US
San Juan Bautista State Historic Park
ここで見られるかも ハイイロタテハモドキ, カリフォルニアトチノキ と San Joaquin Milkvetch.
ガイドを見る →

California, US
San Luis Obispo Botanical Garden
ここで見られるかも ニシカキネトカゲ, Springtime Amanita と California Golden Violet.
ガイドを見る →









