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Eucephalus engelmannii
Eucephalus engelmanniiSynonym: Aster engelmannii. (Aster)
Asteraceae (Sunflower Family)

Montane.  Open woods. Summer.
Along Owl Creek Pass Road, July 14, 2007.

Eucephalus engelmannii grows in open montane woods to five feet tall with large, sessile leaves for most of its height.  Largest leaves are toward the middle; lower leaves are much smaller, often quite reduced in size and withering at flowering time.  Leaves have prominent veins.

The species was named Aster elegans by D. C. Eaton in 1871 from a specimen probably collected by Sereno Watson.  Asa Gray renamed the plant Aster engelmannii in 1884 and Edward Greene renamed it Eucephalus engelmannii in 1896.  "Eucephalus" is Greek for "well-developed head".

George Engelmann was an eminent St. Louis physician and was one of the top three American botanists of the 19th century (along with John Torrey and Asa Gray).  (More biographical information.)

Eucephalus engelmannii
Eucephalus engelmanniiSynonym: Aster engelmannii. (Aster)
Asteraceae (Sunflower Family)

Montane.  Open woods. Summer.
Along Owl Creek Pass Road, July 14, 2007.

The few ray flowers (10-17) range from white to pink, especially turning pink as they age.

Eucephalus engelmannii
Eucephalus engelmanniiSynonym: Aster engelmannii. (Aster)
Asteraceae (Sunflower Family)

Montane.  Open woods. Summer.
Along Owl Creek Pass Road, July 14, 2007.

Outer phyllaries on Eucephalus engelmannii are strongly veined and shingled; inner phyllaries are purple-tinged.  Some outer phyllaries are quite long, strongly veined, and sharply pointed.

Eucephalus engelmannii
Eucephalus engelmanniiSynonym: Aster engelmannii. (Aster)
Asteraceae (Sunflower Family)

Montane.  Open woods. Summer.
Along Owl Creek Pass Road, July 14, 2007.

Range map © John Kartesz,
Floristic Synthesis of North America

State Color Key

Species present in state and native
Species present in state and exotic
Species not present in state

County Color Key

Species present and not rare
Species present and rare
Species extirpated (historic)
Species extinct
Species noxious
Species exotic and present
Native species, but adventive in state
Eradicated
Questionable presence

Range map for Eucephalus engelmannii