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Scientific Name: Allium fistulosum
Pronunciation: AL-ee-um fist-you-LOE-sum
Common Name: green onion, Welsh onion, Japanese bunching onion
Family Name: Amaryllidaceae
Plant Type: Annual
Key ID Features: Leaves long and hollow, up to 4 cm in diameter in fall; bulbs absent.
Course(s): not used (off campus)

Habit: Upright
Form: Vase
Texture: Coarse
Mature Size:
Height:0.4 - 0.7m
Spread:0.3 - 0.6m
Growth Rate:Fast
Origin: S.E. Asia / Japan / China (N.W. China?)
Hardiness Rating: Zone 5: (-29 to -23 C)
Exposure: Full sun
Soil/ Growing Medium: Well-drained
Landscape Uses: Attract beneficial insects, Herb, Urban agriculture
Additional Info: Google
green onion, Welsh onion, Japanese bunching onion
Leaf Morphology: Glossary
Form: Simple
Arrangement: Basal
Texture/ Venation: Parallel venation, Soft flexible
Surfaces: Glabrous
Leaf(let) Terms:
Shapes: Linear
Apices: Acute
Bases: Sheathing
Additional Info: fistulosum means hollow

Inflorescence Type: Umbel
Flower Morphology:Flowers perfect
Number of Petals:3
Corolla Shape:Rotate/stellate
Ovary Position:Superior
Colour (petals): Showy, White, (yellow anthers)
Flower Time at Peak: Jul

Fruit Type: Capsule
Fruit Colour: Brown, (black seeds)
Fruiting Time:
Additional Info: Not showy

Bark or Stem Colour: Green
Organ Modifications: roots seem to just appear at base of stem without a bulb forming

Propagation: Seed, Division - below ground parts
Plant Care:
Other:dead head to prevent seed spread and remove leaves with rust and distroy
Pest Susceptibility: Root rot, Rust, ( Deer resistant, Rabbit resistant )
Specific Pests: Fusarium bulb rot
(NCA) Not Currently Available : not used
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