UW Burke Herbarium species comparison

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Agoseris heterophylla

Agoseris retrorsa

annual agoseris

spear leaved agoseris, spear leaf goat-chicory
Habit Scapose, slender annual, usually glabrous, often with several scapes from the base, 3-40 cm. tall, with milky juice.
Leaves

Leaves oblanceolate, toothed or pinnatifid to entire, up to 15 cm. long and 1.5 cm. wide, mostly basal, but a few on the base of the stem.

Flowers

Heads solitary, small;

involucre 5-13 mm. high in flower, elongating in fruit, with a few soft hairs;

corollas all ligulate, yellow.

Fruits

Achene body 2-5 mm. long, prominently ribbed or winged, tapering to a slender beak 2-3 times as long.

Agoseris heterophylla

Agoseris retrorsa
Flowering time April-July May-June
Habitat Dry, open areas at low to mid-elevations. Sagebrush desert, grassy slopes, and ponderosa pine forest openings at low to middle elevations.
Distribution
Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Montana, Utah, and Arizona.
[WildflowerSearch map]
[BONAP county map]
Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada, Utah, and Arizona.
[WildflowerSearch map]
[BONAP county map]
Origin Native Native
Conservation status Not of concern Not of concern
Sibling taxa
A. ×agrestis, A. apargioides, A. aurantiaca, A. ×elata, A. glauca, A. grandiflora, A. monticola, A. retrorsa
A. ×agrestis, A. apargioides, A. aurantiaca, A. ×elata, A. glauca, A. grandiflora, A. heterophylla, A. monticola
Subordinate taxa
A. heterophylla var. heterophylla
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

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