Allium geyeri |
Allium constrictum |
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Geyer's onion |
Grand Coulee onion |
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Habit | Scapose perennial, usually from a cluster of ovoid bulbs enclosed in fibrous, outer coats with a coarse network pattern; scapes 1-5 dm. tall, nearly terete. | 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. |
Leaves | Leaves usually 3 or more per scape, concave-convex in cross section, 1-5 mm. broad, usually shorter than the scape, green, becoming brown and persisting. |
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. |
Flowers | Umbels 10- to 25-flowered, the pedicels equal in length, nearly twice the length of the perianth, becoming stiffly spreading in fruit; tepals 6, 6-8 mm. long, ovate to lanceolate, pink to rarely white; stamens 6, shorter than the tepals; ovary inconspicuously crested with 6 low, rounded knobs. |
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. |
Fruits | Capsule 3-celled. |
Capsule 3-celled. |
Allium geyeri |
Allium constrictum |
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Flowering time | May-June | May-July |
Habitat | Low meadows and along streams. | Shallow, vernally-moist soils in low, open areas. |
Distribution | Occurring east of the Cascades crest in Washington; southern Vancouver Island to Arizona, east to the Rocky Mountains and northern Great Plains.
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Occurring east of the Cascades crest in Grant and Douglas counties in Washington.
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Origin | Native | Native |
Conservation status | Not of concern | Sensitive in Washington (WANHP) |
Sibling taxa | ||
Subordinate taxa | ||
Web links |
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