Smooth Ironweed

vernonia fasciculata

Smooth Ironweed is a robust and striking native North American perennial wildflower, famous for its vivid, intense purple blooms that emerge in late summer. Reaching heights of up to six feet, this resilient plant is a staple of wet prairies, sedge meadows, and river floodplains across the Midwestern United States. Its common name, ironweed, pays homage to its incredibly tough, fibrous stems, which successfully withstand strong prairie winds and discourage grazing animals. Gardeners and conservationists prize it for its ability to attract a wide diversity of pollinators, acting as an ecological anchor in tallgrass prairie restorations.

生息地: Typically found in moist to wet prairies, marshes, sedge meadows, and river floodplains.

外見

This tall perennial stands upright on stiff, smooth, reddish-purple stems that are entirely hairless. Its lance-shaped leaves are arranged alternately, featuring sharply toothed margins and distinctive tiny pits on their hairless undersides. In late summer, the plant is topped by flat, dense clusters of bright magenta to deep purple flower heads, each composed entirely of disk florets with no rays, which eventually give way to rusty-brown seed heads.

界Plantae門Tracheophyta綱Magnoliopsida目Asterales科Asteraceae属Vernonia

Smooth Ironweed

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

Because livestock avoid its bitter taste, Smooth Ironweed often becomes dominant in overgrazed pastures, earning it a reputation as a stubborn weed among ranchers.

The common name 'Ironweed' refers not only to the tough, metallic-colored stems but also to the rusty-brown color of the seed heads in autumn.

The genus name Vernonia honors the English botanist William Vernon, who conducted extensive plant collections in Maryland during the late 17th century.

特殊能力

The exceptionally tough, fibrous stems allow the plant to remain upright in severe storms and high prairie winds.

Leaves contain bitter chemical compounds that make the plant unpalatable to cattle and deer, ensuring its survival in heavily grazed areas.

Blooms late in the season when many other flowers have faded, providing a critical nectar source for migrating butterflies.

サイズと詳細

長さ: 90-180 cm
寿命: 3-10 年

食性と食事

As a photoautotrophic plant, Smooth Ironweed synthesizes its own food using sunlight, carbon dioxide, and water through the process of photosynthesis.

主な食物

Sunlight
Carbon dioxide
Water
Soil nutrients

生態系とのつながり

mutualism

Monarch Butterfly

Danaus plexippus

Provides vital late-season nectar to migrating adults during their southern journey.

eaten by

Ironweed Borer Moth

Papaipema impecuniosa

Larvae of this specialist moth bore into the stems of the plant to feed and pupate.

mutualism

Long-horned Bee

Melissodes dentiventris

Feeds heavily on the pollen and nectar, acting as an effective pollinator.

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

Smooth Ironweedを見分けるには？

Smooth Ironweed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。

Smooth Ironweedの長さは何ですか？

90-180 cm

Smooth Ironweedの寿命は何ですか？

3-10 年

Smooth Ironweedは何を食べますか？

As a photoautotrophic plant, Smooth Ironweed synthesizes its own food using sunlight, carbon dioxide, and water through the process of photosynthesis.

Smooth Ironweedは通常どこに生息していますか？

Typically found in moist to wet prairies, marshes, sedge meadows, and river floodplains.