Columbiadoria hallii

(A. Gray) G. L. Nesom

Phytologia 71: 249. 1991.

Common names: Columbia River goldenrod
IllustratedEndemic
Basionym: Haplopappus hallii A. Gray Proc. Amer. Acad. Arts 8: 389. 1872 (as Aplopappus)
Synonyms: Hesperodoria hallii (A. Gray) Greene
Treatment appears in FNA Volume 20. Treatment on page 168.

Leaf blades (largest) 2–5 cm. Heads 5–15+. Ray corollas 6–10 mm, laminae 6–7 × 2 mm. Disc corollas 6–7 mm. Cypselae 4–5 mm.


Phenology: Flowering Aug–Oct.
Habitat: Bluffs, benches, crevices, dry, open to lightly wooded slopes
Elevation: 50–1200 m

Discussion

Columbiadoria hallii is known from the vicinity of the eastern Columbia River Gorge. It occurs also “at scattered stations [south] in the Cascades to the Calapooia Mountains,” where the plants “are not precisely like the others, and may prove to be varietally distinct” (A. Cronquist 1955, p. 216).

Selected References

None.

Lower Taxa

None.