''Eucephalus gormanii'' is a North American species of flowering plant in the family

Asteraceae Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

known by the common name Gorman’s aster. It grows on rocky slopes and on cliffs at high elevations in the Cascade Mountains of the US State of

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

. ''Eucephalus gormanii'' is a perennial herb up to 40 cm (16 inches) tall, with short rhizomes and a woody

caudex A caudex (: caudices) of a plant is a stem, but the term is also used to mean a rootstock and particularly a basal stem structure from which new growth arises.pages 456 and 695 In the strict sense of the term, meaning a stem, "caudex" is most ...

. Stems are hairless. One plant will usually produce 2-5

flower heads A pseudanthium (; : pseudanthia) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, composite flowers ...

per stem. Each head has 5-13 white

ray florets Asteraceae () is a large family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the order Asterales. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger fa ...

surrounding numerous yellow

disc floret Asteraceae () is a large family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the order Asterales. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger fa ...

s.Piper, Charles Vancouver 1916. Proceedings of the Biological Society of Washington 29(23): 101
as ''Eucephalus gormani''

References

{{Taxonbar, from=Q15597055 Astereae Flora of Oregon Plants described in 1916 Flora without expected TNC conservation status Endemic flora of Oregon Endemic flora of the United States