Burke: Allium triquetrum vs. Allium acuminatum

	Allium triquetrum	Allium acuminatum
		taper-tip onion
Habit		Scapose perennial herbs from bulbs, the bulbs nearly spherical, usually clustered, the outer coats brownish and with a net-like pattern, the mesh equally long and broad.
Leaves		Leaves 2 or more, concave-convex in cross section, 1-3 mm. broad, shorter than the scape, withering by flowering; scape 1-3 dm. tall, cylindrical.
Flowers		Umbel few- to several-flowered; pedicels of equal length, 1-2 times the length of the tepals; outer 3 tepals usually 10-12 mm. long, lanceolate, acuminate, entire, the tips widely spreading, pink or rose-purple to white; inner 3 tepals similar but shorter, narrower and serrulate; stamens 6, two-thirds the length of the tepals; style capitate;
Fruits		Capsule 3-celled, 6-seeded.

	Allium triquetrum	Allium acuminatum
Flowering time		May-July
Habitat		Balds, grasslands, rocky outcroppings, dry slopes, and other open areas from low to middle elevations in the mountains.
Distribution	[WildflowerSearch map] [BONAP county map]	Widely distributed on both sides of the Cascades crest in Washington; British Columbia to California, east to Wyoming. [WildflowerSearch map] [BONAP county map]
Origin	Introduced	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	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. schoenoprasum, A. scilloides, A. textile, A. tolmiei, A. validum, A. vineale	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. schoenoprasum, A. scilloides, A. textile, A. tolmiei, A. validum, A. vineale
Web links	Local floras: CA, OR Local Web sites: CalFlora, CalPhotos, 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, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Allium acuminatum

taper-tip onion

Habit

Scapose perennial herbs from bulbs, the bulbs nearly spherical, usually clustered, the outer coats brownish and with a net-like pattern, the mesh equally long and broad.

Leaves

Leaves 2 or more, concave-convex in cross section, 1-3 mm. broad, shorter than the scape, withering by flowering;

scape 1-3 dm. tall, cylindrical.

Flowers

Umbel few- to several-flowered;

pedicels of equal length, 1-2 times the length of the tepals; outer 3 tepals usually 10-12 mm. long, lanceolate, acuminate, entire, the tips widely spreading, pink or rose-purple to white; inner 3 tepals similar but shorter, narrower and serrulate;

stamens 6, two-thirds the length of the tepals;

style capitate;

Fruits

Capsule 3-celled, 6-seeded.