Heart-Leaf Milkweed

asclepias cordifolia

The Heart-Leaf Milkweed (Asclepias cordifolia) is a stunning perennial herb native to the slopes and woodlands of California and southern Oregon. Instantly recognizable by its striking heart-shaped, clasping leaves that wrap directly around dark purple stems, this resilient wildflower brings vibrant life to dry, rocky environments. In late spring and early summer, it produces spherical clusters of beautiful, deep-maroon to pink star-shaped flowers that emit a sweet, heavy fragrance, drawing in a wide variety of native pollinators. Beyond its visual charm, Heart-Leaf Milkweed plays a crucial role in Western ecosystems as an essential larval host plant for the monarch butterfly, providing nourishment and defense mechanisms for developing caterpillars. It has also historically held ethnobotanical value, with Native American tribes utilizing its strong stem fibers for cordage and its sap for various medicinal applications. This tough plant is a true symbol of West Coast chaparral and open forest habitats.

生息地: Found on dry, rocky slopes, chaparral, and open coniferous forests at elevations between 50 and 2,000 meters.

外見

This herbaceous perennial grows up to 100 centimeters tall, featuring thick, upright stems that are often a rich, purplish-green. Its most distinctive feature is its opposite, clasping, heart-shaped (cordate) leaves that lack stalks, appearing to embrace the stem directly. The leaves are bluish-green, sometimes tinged with purple. Its nodding flower clusters (umbels) bear numerous star-like blossoms, each with deep-maroon to purplish-pink hoods and reflexed petals, creating a complex and beautiful multi-layered appearance.

界Plantae門Tracheophyta綱Magnoliopsida目Gentianales科Apocynaceae属Asclepias

Heart-Leaf Milkweed

カテゴリ

植物

レア度

Common

危険度

1/5 · 非常に低い

スナップ

最初にスナップしよう！

おもしろい事実

Its specific epithet 'cordifolia' translates from Latin to 'heart-leaved', directly referencing its beautifully shaped, clasping foliage.

Monarch butterfly caterpillars that eat Heart-Leaf Milkweed incorporate the plant's cardiac glycosides into their own bodies, making themselves highly toxic to birds.

The strong, fibrous bark of the stems was harvested by indigenous peoples, such as the Miwok, to spin high-quality ropes, fishing lines, and nets.

特殊能力

The plant produces a milky latex sap rich in cardenolides, which are toxic cardiac glycosides that deter most herbivores from eating its tissues.

Its broad, clasping leaves act as efficient funnels, capturing dew and sparse rainwater and directing it down the stem directly to its root system.

It possesses a deep, woody taproot system that stores water and nutrients, allowing it to survive hot, dry summers and regenerate after wildfires.

サイズと詳細

長さ: 30-100 cm
寿命: 5-20 年

食性と食事

As a photoautotroph, this plant manufactures its own food through photosynthesis, utilizing sunlight, carbon dioxide, and water while absorbing key nutrients from the soil.

主な食物

Sunlight
Water
Carbon dioxide
Soil nitrogen

採餌方法

Photosynthesis

生態系とのつながり

host plant

Monarch Butterfly

Danaus plexippus

Caterpillars of the monarch butterfly feed exclusively on milkweed foliage, storing the plant's toxins to defend themselves against predators.

mutualism

Yellow-faced Bumble Bee

Bombus vosnesenskii

Yellow-faced bumble bees frequently visit the flowers to gather nectar, serving as crucial pollinators for the species.

eaten by

Large Milkweed Bug

Oncopeltus fasciatus

This specialized insect feeds on the seeds and plant fluids, utilizing the milkweed's toxins for its own defense.

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

Heart-Leaf Milkweedを見分けるには？

Heart-Leaf Milkweed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。

Heart-Leaf Milkweedの長さは何ですか？

30-100 cm

Heart-Leaf Milkweedの寿命は何ですか？

5-20 年

Heart-Leaf Milkweedは何を食べますか？

As a photoautotroph, this plant manufactures its own food through photosynthesis, utilizing sunlight, carbon dioxide, and water while absorbing key nutrients from the soil.

Heart-Leaf Milkweedは通常どこに生息していますか？

Found on dry, rocky slopes, chaparral, and open coniferous forests at elevations between 50 and 2,000 meters.

Heart-Leaf Milkweedはどのように狩りをしますか？

Photosynthesis