Allium fistulosum L.
Japanese Bunching Onion
Life   Plantae   Monocotyledoneae   Liliaceae   Allium

&pull 20q v5.145 20180528: Error 500 Can't connect to

Click on map for details about points.


Associates · map
FamilyScientific name @ source (records)
Aphididae  Neotoxoptera formosana @ AMNH_PBI (2)
Davidiellaceae  Cladosporium herbarum @ BPI (1)
Mycosphaerellaceae  Heterosporium allii @ 442938B (1); BPI (1); 442938A (1)

Mycosphaerella schoenoprasi @ 609593B (1); BPI (3); 609593A (1)

Mycosphaerella tassiana @ BPI (1)
Peronosporaceae  Peronospora schleideni @ BPI (1)
Pleosporaceae  Pleospora @ BPI (1)
Pucciniaceae  Puccinia allii @ BPI (11)

Puccinia porri @ BPI (11)
Pythiaceae  Phytophthora allii @ BPI (1)
Sclerotiniaceae  Sclerotinia allii @ BPI (2)

Sclerotinia @ BPI (1)
Typhulaceae  Sclerotium allii @ BPI (1)

Sclerotium @ BPI (1)

go to Discover Life's Facebook group

Following modified from Plants Database, United States Department of Agriculture
   Top | See original ---> ---> --->
Link: Skip repetitive navigation links
USDA and NRCS Identifier NRCS Logo Web Site PLANTS photo banner
PLANTS Home  about PLANTS  PLANTS Team  Partners of PLANTS  What  National Plant Data Team Web Site  Help using PLANTS  Contact PLANTS
 Search the PLANTS Web site
 Name Search

 State Search
 Advanced Search
 Search Help
 Alternative Crops
 Cover Crops
 Culturally Significant
 Distribution Update
 Fact Sheets & Plant Guides
 Introduced, Invasive, and Noxious Plants
 Threatened & Endangered
 Wetland Indicator Status
PLANTS Image Gallery
 50,000+ Plant Images
Download PLANTS data
 Complete PLANTS Checklist
 State PLANTS Checklist
 Advanced Search Download
 Symbols for Unknown Plants
 NRCS State GSAT Lists
 NRCS State Plants Lists
Related tools
 Crop Nutrient Tool
 Ecological Site Information System
 PLANTS Identification Keys
 Plant Materials Web Site
 Plant Materials Publications
 USDA Plant Hardiness Map
You are here: Home / Plant Profile

Allium fistulosum L.
welsh onion

Image of Allium fistulosum

General Information
Symbol: ALFI4
Group: Monocot
Family: Liliaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : AK   I
L48   I
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Allium thumbnails at the Plants Gallery




Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Liliidae
Order Liliales
Family Liliaceae – Lily family
Genus Allium L. – onion
Species Allium fistulosum L. – welsh onion

Subordinate Taxa

This plant has no children

Legal Status

Noxious Weed Information
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds .
Arkansas Allium
wild onion, wild garlic Noxious weed

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (ALFI4)
Flora of North America (ALFI4)
Integrated Taxonomic Information System (ALFI4)
Kemper Center for Home Gardening (ALFI4)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

 PLANTS Home | | NRCS | Site Map | Policies and Links
Accessibility Statement | Privacy Policy | Non-Discrimination Statement

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
All Floras       Advanced Search
FNA Vol. 26 Page 228, 244 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 26 | Liliaceae | Allium

23. Allium fistulosum Linnaeus, Sp. Pl. 1: 301. 1753.

Welsh onion, Japanese bunching onion

Bulbs 2—12+, borne on short rhizome, cylindric, 2—5 × 1—2.5 cm; outer coats enclosing 1 or more bulbs, white to light brown, membranous, without reticulation; inner coats white, cells obscure, quadrate. Leaves persistent, 2—6, sheathing lower 1/4—1/3 of scape; blade terete, fistulose, 10—40 cm × 10—25 mm. Scape persistent, solitary, erect, fistulose, inflated in middle, tapering to umbel, (12—)15—70 cm × 8—25 mm. Umbel persistent, erect, compact, 50—100-flowered, globose to ovoid, bulbils unknown; spathe bracts persistent, 1—2, 1—3-veined, ovate, ± equal, apex acute. Flowers narrowly campanulate to urceolate, 6—9 mm; tepals erect, yellowish white, withering in fruit, margins entire, apex acute, outer lanceolate, inner narrowly ovate, unequal; stamens long-exserted; anthers white to yellow; pollen white; ovary crestless; style linear, equaling stamens; stigma capitate, obscurely 3-lobed; pedicel 10—30 mm. Seed coat shining; cells 4—6-angled, ± rectangular.

Flowering Jul--Aug. Disturbed areas; introduced; N.W.T.; Alaska; cultivated in Europe, Asia.

Allium fistulosum is cultivated in Europe and Asia. It is reported to have escaped in Alaska and is established near the north end of Great Slave Lake. The species is to be expected elsewhere in Canada and the northern United States.

Updated: 2019-11-15 05:54:23 gmt
Discover Life | Top
© Designed by The Polistes Corporation