Allium tribracteatum

Allium tribracteatum is a species of wild onion native to the United States, specifically the states of California and Oregon. It is commonly known as Three-Bracted Onion or Three-Bracted Leek.

Description

Allium tribracteatum is a perennial plant that grows from a bulb. It has a single, slender, round stem that can reach up to 30 cm in height. The leaves are linear and flat, measuring up to 20 cm long. The plant produces a single umbel of flowers, each with three conspicuous, leaf-like bracts at the base. The flowers are typically white or pink, with six tepals.

Habitat

Allium tribracteatum is found in chaparral and woodland habitats, often on serpentine soils. It is adapted to the Mediterranean climate of its native range, with wet winters and dry summers.

Cultivation

While not commonly cultivated, Allium tribracteatum can be grown in gardens that replicate its natural habitat. It requires well-drained soil and full sun. The bulbs should be planted in the fall, at a depth of about three times their diameter.

Conservation

Allium tribracteatum is not currently listed as threatened or endangered. However, like many native plants, it is vulnerable to habitat loss due to development and invasive species.

References

• Flora of North America (vol. 26)
• Jepson Manual: Higher Plants of California (1993)

External links

• Calflora Database: Allium tribracteatum
• USDA Plants Profile: Allium tribracteatum

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