According to observations of naturalists and beekeepers.
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Allium tuberosum (Garlic chives, Oriental garlic, Asian chives, Chinese chives, Chinese leek) is a species of onion native to southwestern parts of the Chinese province of Shanxi and cultivated and naturalized elsewhere in Asia and around the world. A popular vegetable in eastern Asia, where the plant is often cultivated for its edible leaves, bulb, and flowering stems.
It has been reported as growing wild in scattered locations in the United States (Illinois, Michigan, Ohio, Nebraska, Alabama, Iowa, Arkansas, and Wisconsin). However, it is believed to be more widespread in North America because of the availability of seeds and seedlings of this species as an exotic herb and because of its high aggressiveness. This species is also widespread across much of mainland Europe and invasive in other areas of the world.
Garlic Chives is often grown in gardens because of its attractive flowers and the culinary properties of the leaves.
This plant is present in at least 8 states/provinces in this country.
Allium tuberosum is a rhizomatous, clump-forming perennial plant growing from a small, elongated bulb (about 10 mm across) that is tough and fibrous. Unlike either onion or garlic, it has strap-shaped leaves with triangular bases, about 1.5 to 8 mm wide. It produces many white flowers in a round cluster (umbel) on stalks 25 to 60 cm tall.
It grows in slowly expanding perennial clumps, but also readily sprouts from seed. In warmer areas, garlic chives may remain green all year round. In cold areas, leaves and stalks completely die back to the ground and resprout from roots or rhizomes in the spring.
The blooming period occurs from late summer to early fall and lasts about 1 month. The flowers are fragrant. Each flower is replaced by a green seed capsule that is 3-celled and has 3 rounded lobes. Each capsule contains several seeds that are small, black, and shiny. Unlike some Allium spp., no aerial bulbets are produced. The root system consists of an elongated bulb with fibrous roots at the bottom. This plant reproduces by its seeds and vegetative offsets. It often forms clumps of plants.
The nectar of the flowers attracts bees, wasps, flies, butterflies, and skippers. Some of the bees probably collect pollen as well.
Acer saccharinum (aka: Silver maple, Soft maple)
Cercis canadensis (aka: Eastern redbud, Redbud, Cersis Reniformis)
Malus angustifolia (aka: American crab apple, Buncombe crab apple, Crabtree, Narrowleaf crab, Narrowleaf crab apple, Southern crab, Southern crab apple)
Aronia arbutifolia (aka: Red chokeberry)
Ulmus americana (aka: American elm, White elm, Water elm, Soft elm, Florida elm)
Prunus serotina (aka: Black cherry, Wild black cherry, Rum cherry, Mountain black cherry, Wild cherry)
Prunus americana (aka: American plum, Goose plum, River plum, Wild plum)
Pyrus communis (aka: European pear, Common pear)
Acer saccharum (aka: Sugar maple, Rock maple, Hard maple)
Acer negundo (aka: Boxelder, Western boxelder, Arizona boxelder, California boxelder, Texas boxelder, Interior boxelder, Violet boxelder)
Celtis laevigata (aka: Hackberry, Sugarberry, Lowland hackberry, Sugar hackberry, Arizona sugarberry, Netleaf hackberry, Small's hackberry, Southern hackberry, Texas sugarberry)
Celtis occidentalis (aka: Common hackberry, Bastard elm, Nettle-tree, Northern hackberry)
Malus domestica (aka: Pyrus pumila, Malus pumila, Apple)
Prunus cerasus (aka: Sour cherry, Tart cherry, Dwarf cherry, Montmorency cherry)
Malus coronaria (aka: Sweet crab apple, Garland crab, Alabama crab, Allegheny crab, American crab, Baltimore crab apple, Buncombe crab, Dawson crab, Dunbar crab, Fragrant crab, Garland tree, Lanceleaf crab apple, Missouri crab, Sweet-scented crab, Sweet wild crab, Wild crab, Wild sweet crab, Wild Crab Apple)
Populus tremuloides (aka: Quaking aspen, Trembling aspen, Aspen, American aspen, Mountain aspen, Golden aspen, Trembling poplar, White poplar, Popple, Alamo Blanco)
Vaccinium corymbosum (aka: Highbush blueberry, High-bush blueberry, Northern highbush blueberry, Tall blueberry, Rabbiteye blueberry, Blue huckleberry, Tall huckleberry, Swamp huckleberry, High blueberry, Swamp blueberry)
Prunus pumila (aka: Sandcherry, Western sandcherry, Eastern sandcherry, Great Lakes sandcherry)
Liriodendron tulipifera (aka: Tuliptree, Blue-poplar, Tulip-poplar, Yellow-poplar, Yellow wood)
Ilex opaca (aka: American holly, Dune holly, Hummock holly, Scrub holly)
