[Agoseris and Goat-chicories: The Genus Agoseris in the Cascade Mountain Range of Oregon and Washington]

Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris

Agoseris retrorsa

Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus

Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus)

The photo above shows a close-up of the involucral bracts of spear-leaf agoseris as seen along the Shool Canyon Trail #368, about one quarter mile from the trailhead, Badger Creek Wilderness.........May10,, 2015.

Seed head of Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus) - Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus)

Mature seed head of spear-leaf agoseris as seen along the West Metolius River Trail #4018 about one-quarter mile upstream from Wizard Falls Fish Hatchery, Deschutes National Forest......July 19, 2023.

Achene of Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus)

The photo above shows a close-up of the achene (seed) of spear-leaf agoseris as seen along the Willard Springs Trail in Conboy Lake NWR..........July 2, 2007. Note that where the top of the achene attaches to the barb, the achene is squared off, a diagnostic feature of this species.

Basal leaf of Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus)

The photo above shows a basal leaf of this species. Note the numerous long hairs towards the lower half of the leaf as well as the deeply divided leaf with the lobes pointing outwards or slightly downwards towards the base of the leaf.

Seed Head of Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus)

The photo above shows a close-up of the seed head of spear-leaf agoseris as seen along the Willard Springs Trail in Conboy Lake NWR......July 2, 2007.

Involucral bracts of Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus) - Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus) - Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus)

Spear-leaf agoseris as seen at a DNR rock quarry at about 4100' abreast the ridgetop between the Dairy Creek and Cougar Creek drainages on the southeast corner of Mt. Adams........May 29, 2005.

Flower head of Spearleaf Agoseris, Spear-leaf Agoseris, Spear-leaf Goat-chicory, Spear-leaved Agoseris: Agoseris retrorsa (Synonyms: Macrorhynchus angustifolius, Macrorhynchus retrorsus)

The photo above shows spear-leaf agoseris as seen at a DNR rock quarry at about 4100' abreast the ridgetop between the Dairy Creek and Cougar Creek drainages on the southeast corner of Mt. Adams.........May 29, 2005.
Paul Slichter