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swamp onion

Scientific Name: Allium madidum

Family: Liliaceae

Category: Monocot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Allium validum: The Swamp Onion

Allium validum, commonly known as swamp onion, wild onion, Pacific onion, or Pacific mountain onion, is a captivating member of the plant kingdom. Its vibrant flowers and intriguing growth habits make it a notable species in its native habitats.

Considerations for Pets

  • This plant grows from a bulb.
  • The plant has grass-like leaves.

Considerations for Children

  • This plant grows from a bulb.
  • The plant has grass-like leaves.

Taxonomy and Nomenclature

  • Scientific Name: Allium validum
  • Common Names: Swamp onion, wild onion, Pacific onion, Pacific mountain onion
  • Family: Amaryllidaceae (formerly Liliaceae)
  • Synonyms/Alternate Names: Allium madidum

Distribution and Habitat

  • Native to the Cascade Range.
  • Found in areas such as Yosemite and the Boise National Forest in Idaho.
  • Observed in locations such as Virginia Canyon and Hoover Wilderness.

Morphological Characteristics

  • Grows from a bulb.
  • Reaches up to 0.6 meters (2 feet) in height.
  • Features long, basal, grass-like leaves.
  • Characterized by a tight umbel of 15 to 40 rose-red to white flowers with exserted stamens atop a tall, leafless stem.
  • Leaves are flat and upright, emerging from vigorous rhizomes, forming large patches.

Ecological Role

  • Listed as a sensitive plant species for the Nez Perce National Forest (Region 1).

Flowering and Reproduction

  • Flowers from July to August.
  • The flowers are hermaphrodite, containing both male and female reproductive organs.

Further Information

  • Additional details can be found on the RHS (Royal Horticultural Society) website.
  • Discover Life offers resources about the biology, natural history, ecology, identification, and distribution of Allium madidum.
  • Information available on Wikimedia Commons with associated images.