Burke: Allium constrictum vs. Allium schoenoprasum

	Allium constrictum	Allium schoenoprasum
	Grand Coulee onion	chives
Habit	Scapose perennial from one or more ovoid bulbs, the inner coats reddish to white, the outer coats gray to brown; with a thin inner membrane showing a distinct network pattern.	Scapose perennials from elongate, clustered bulbs, inner coats whitish or pinkish, outer coats grayish or brownish, minutely striate.
Leaves	Leaves 2, narrow, concave-convex, persisting at maturity, shorter than the scape; scape strongly thickened below the umbel, with a definite constriction between the swollen apex of the scape and the umbel; scape usually 2-3 dm. tall, terete.	Leaves usually 2, terete, hollow, 1-7 mm. thick, partially sheathing and shorter than the scape; scape 2-5 dm. tall, rather stout, terete.
Flowers	Umbel several- to many-flowered, the slender pedicels 2-3 times the length of the tepals; tepals usually 7-8 mm. long, entire, pointed, narrowly lanceolate, usually pink; stamens 6, about as long as the tepals.	Umbel several- to many-flowered, pedicels slender, shorter than the tepals; tepals 8-12 mm. long, elliptic to lanceolate, pointed, the tips recurved, pale to deep lilac or white; stamens 6, over the length of the tepals.
Fruits	Capsule 3-celled.	Capsule 3-celled, without a crest.

	Allium constrictum	Allium schoenoprasum
Flowering time	May-July	April - August
Habitat	Shallow, vernally-moist soils in low, open areas.	Wet meadows, rocky or gravelly streambanks and lake shores
Distribution	Occurring east of the Cascades crest in Grant and Douglas counties in Washington. [WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in Washington; Alaska to Oregon and Nevada, east to the Rocky Mountains, further east across Canada to the Great Lakes region and eastern North America. [WildflowerSearch map] [BONAP county map]
Origin	Native	Both native and introduced populations
Conservation status	Sensitive in Washington (WANHP)	Not of concern
Sibling taxa	A. acuminatum, A. amplectens, A. campanulatum, A. cernuum, A. columbianum, A. crenulatum, A. dictuon, A. douglasii, A. fibrillum, A. geyeri, A. macrum, A. nevii, A. robinsonii, A. schoenoprasum, A. scilloides, A. textile, A. tolmiei, A. validum, A. vineale	A. acuminatum, A. amplectens, A. campanulatum, A. cernuum, A. columbianum, A. constrictum, A. crenulatum, A. dictuon, A. douglasii, A. fibrillum, A. geyeri, A. macrum, A. nevii, A. robinsonii, A. scilloides, A. textile, A. tolmiei, A. validum, A. vineale
Web links	Local floras: WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, OR, WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Allium constrictum

Allium schoenoprasum

Grand Coulee onion

chives

Habit

Scapose perennial from one or more ovoid bulbs, the inner coats reddish to white, the outer coats gray to brown; with a thin inner membrane showing a distinct network pattern.

Scapose perennials from elongate, clustered bulbs, inner coats whitish or pinkish, outer coats grayish or brownish, minutely striate.

Leaves

Leaves 2, narrow, concave-convex, persisting at maturity, shorter than the scape;

scape strongly thickened below the umbel, with a definite constriction between the swollen apex of the scape and the umbel;

scape usually 2-3 dm. tall, terete.

Leaves usually 2, terete, hollow, 1-7 mm. thick, partially sheathing and shorter than the scape;

scape 2-5 dm. tall, rather stout, terete.

Flowers

Umbel several- to many-flowered, the slender pedicels 2-3 times the length of the tepals;

tepals usually 7-8 mm. long, entire, pointed, narrowly lanceolate, usually pink;

stamens 6, about as long as the tepals.

Umbel several- to many-flowered, pedicels slender, shorter than the tepals;

tepals 8-12 mm. long, elliptic to lanceolate, pointed, the tips recurved, pale to deep lilac or white;

stamens 6, over the length of the tepals.

Fruits

Capsule 3-celled.

Capsule 3-celled, without a crest.

Allium constrictum

Allium schoenoprasum

Flowering time

May-July

April - August

Habitat

Shallow, vernally-moist soils in low, open areas.

Wet meadows, rocky or gravelly streambanks and lake shores

Distribution

Occurring east of the Cascades crest in Grant and Douglas counties in Washington.

[WildflowerSearch map]

[BONAP county map]

Occurring east of the Cascades crest in Washington; Alaska to Oregon and Nevada, east to the Rocky Mountains, further east across Canada to the Great Lakes region and eastern North America.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Both native and introduced populations

Conservation status

Sensitive in Washington (WANHP)

Not of concern

Sibling taxa