Cacaliopsis

Cacaliopsis is a monotypic genus[2] of flowering plants in the aster family, Asteraceae,[3] containing the single species Cacaliopsis nardosmia (formerly Cacalia nardosmia). It is known by the common name silvercrown.[4] It is native to western North America, where it is distributed from southern British Columbia to northern California.[5]

Silvercrown
Cacaliopsis nardosmia near Bridge Creek Campground, Icicle Canyon, Chelan County Washington

Apparently Secure  (NatureServe)
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Senecioneae
Genus:
Cacaliopsis

Species:
C. nardosmia
Binomial name
Cacaliopsis nardosmia
Synonyms[1]
  • Cacalia nardosmia A.Gray
  • Cacaliopsis nardosmia subsp. glabrata (Piper) Piper
  • Cacalia nardosmia var. glabrata (Piper) B.Boivin
  • Luina nardosmia var. glabrata (Piper) Cronquist
  • Luina nardosmia (A.Gray) Cronquist
  • Luina nardosmia subsp. glabrata (Piper) G.W.Douglas & Ruyle-Dougl.
  • Cacaliopsis glabrata (Piper) Rydb.
  • Cacaliopsis nardosmia var. glabrata Piper
  • Adenostyles nardosmia (A.Gray) A.Gray

This species is a perennial herb growing from rhizomes with a fibrous root system. It has an erect stem reaching about 90 centimeters in maximum height. The leaves are alternately arranged, and most are near the base of the stem. The blades have lobes subdivided into toothed segments. They are hairy to woolly, especially on the undersides. The blades are up to 35 centimeters long and are borne on petioles up to 30 centimeters long. The flower heads are in arrays or clusters. They contain up to 50 long yellow or orange disc florets and no ray florets. The fruit is a veiny cylindrical cypsela with a long pappus of many barbed, white bristles.[5][6]

The plant grows in oak and pine forests and meadows, sometimes on serpentine soils.[6]

References
  1. "Flann, C (ed) 2009+ Global Compositae Checklist". Archived from the original on 2014-11-11. Retrieved 2014-11-11.
  2. Cacaliopsis. Flora of North America.
  3. Gray, Asa. 1883. Proceedings of the American Academy of Arts and Sciences 19: 50–51 in English
  4. Cacaliopsis nardosmia. USDA PLANTS.
  5. Cacaliopsis nardosmia. The Jepson eFlora 2013.
  6. Cacaliopsis nardosmia. Flora of North America.


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