UW Burke Herbarium species comparison

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Ivesia gordonii
Ivesia gordonii

gordon's ivesia, alpine mousetail
Habit Herbaceous, glandular-puberulent perennial from a taproot, the flowering stems 5-15 cm. tall.
Leaves

Basal leaves numerous, the blades 2-7 cm. long, pinnate, the leaflets over 20, deeply divided into 3-5 obovate segments 3-8 mm. long;

cauline leaf 1, greatly reduced, the stipule several-lobed.
Flowers

Inflorescence a congested, terminal cluster;

calyx conic, yellowish, the 5 lobes deltoid-lanceolate, 3-4 mm. long, erect;

petals 5, yellow, obovate to spatulate, shorter than the sepals;

stamens 5, pistils 2-4.
Fruits

Achenes ovoid-flattened, 2 mm. long, smooth.

Ivesia gordonii
Flowering time June-August
Habitat Rocky slopes, grassland, sagebrush, forest openings, and subalpine to alpines ridges.
Distribution
Occurring chiefly east of the Cascades crest from central Washington south; central Washington to California, east to Montana, Wyoming, and Colorado.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Not of concern
Sibling taxa
I. tweedyi
Subordinate taxa
I. gordonii var. gordonii
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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