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Plant Details

Allium allegheniense

Allegheny Onion

Scientific Name:

Allium allegheniense

Genus:

Allium

Species Epithet:

allegheniense

Common Name:

Allegheny Onion

Plant Type

Herb/Wildflower

Life Cycle

Perennial

Plant Family

Liliaceae (Lily Family)

Native/Alien:

NC Native

Size:

1-3 ft.

Bloom Color(s):

Pink, Purple

Light:

Sun - 6 or more hours of sun per day, Part Shade - 2 to 6 hours of sun per day

Soil Moisture:

Moist

Bloom Time:

June, July, August, September

Growing Area:

Mountains

Habitat Description:

In thin soils around outcrops, generally of mafic rocks (such as amphibolite or hornblende gneiss) or calcareous rocks, primarily at moderate to fairly high elevations (1000-1600m) rock outcrops and woodlands over mafic rock at moderate to high elevations (Ashe, Caldwell)

Leaf Arrangement:

Basal

Leaf Retention:

Deciduous

Leaf Type:

Leaves veined, not needle-like or scale-like

Leaf Form:

Simple

Life Cycle:

Perennial

Wildlife Value:

Has some wildlife value

Landscape Value:

Not Recommended for home landscapes

State Rank:

S1: Critically imperiled (*Key)

Global Rank:

G_?: Uncertain (add status to NOTES section) (*Key)

State Status:

SR-T: Significantly Rare: Throughout (*Key)

Notes:

Although not recognized by most recent authors, A. allegheniense seems distinctive enough in morphology, ecology, and distribution to warrant taxonomic recognition at some level; additional study is needed Weakley Flora 2012

NC Natural Heritage Program Global Rank: G3?

Patch of Allegheny Onion

image

Paynter, August 2011

Flowers

image

In seed

image

Paynter, September 2011

Links:

USDA PLANTS Database Record


Bird-Friendly Native Plants



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