UW Burke Herbarium species comparison

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Allium crenulatum

Allium amplectens

scalloped onion

narrow-leaf onion
Habit Scapose perennial from an obliquely ovoid bulb, the outer coats whitish or grayish, without a network pattern. Scapose, perennial herbs from bulbs, the bulbs ovoid, usually clustered, the outer coats brownish and with a herringbone pattern.
Leaves

Leaves usually 2, flattened, somewhat curved, longer than the scape and deciduous at maturity;

scape strongly flattened and two-edged, the margins often wavy.

Leaves 2-4, concave-convex, slender, shorter than the scape, withering early;

scape 1-4 dm. tall, cylindrical.
Flowers

Umbels several- to many-flowered, the pedicels about as long as the tepals;

tepals 6, 6-12 mm. long, lanceolate, pointed, pinkish with deeper pink mid-veins;

stamens 6, about the length of the tepals;

anthers yellow or purplish.

Umbel few- to many-flowered, nearly spherical;

pedicels slender, 1-2 times the length of the tepals;

tepals 6, lanceolate, acute, white or pink, becoming papery and converging over the fruit at maturity;

stamens 6, as long as the tepals;

stigma capitate.
Fruits

Capsule 3-celled, obscurely crested.

Capsule 3-celled, 6-seeded, crested with 6 low processes.

Allium crenulatum

Allium amplectens
Flowering time May-July May-July
Habitat Forest openings and mountain meadows, moderate to high elevations. Dry slopes and open meadows at low to middle elevations.
Distribution
Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon.
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; British Columbia to California.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Not of concern
Sibling taxa
A. acuminatum, A. amplectens, A. campanulatum, A. cernuum, A. columbianum, A. constrictum, 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. 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 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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