Eucephalus engelmannii

(D. C. Eaton) Greene

Pittonia 3: 54. 1896.

Common names: Engelmann’s aster
Basionym: Aster elegans var. engelmannii D. C. Eaton in S. Watson, Botany (Fortieth Parallel), 144. 1871 (as engelmanni)
Synonyms: Aster engelmannii (D. C. Eaton) A. Gray
Treatment appears in FNA Volume 20. Treatment on page 40. Mentioned on page 41.

Perennials 50–120(–150) cm (with caudices or stout rhizomes). Stems ascending to erect, glabrate or pilose, eglandular to ± densely glandular. Leaves: mid and distal blades elliptic to lance-ovate, 5–10 cm × 15–35 mm, faces glabrous and eglandular to adaxially villous and/or ± glandular. Heads 5–15(–40) in racemiform to corymbiform arrays. Peduncles often stipitate-glandular. Involucres turbinate, 7–10 mm. Phyllaries in 4–6 series (strongly unequal, often reddish apically), linear to lance-ovate, acute to acuminate, pubescent to glandular or glabrate abaxially, villous adaxially, especially distally (appearing ciliate toward tips). Rays usually 8 or 13, white to pink. Cypselae usually pilose; pappus bristles in 2 series, barbellate. 2n = 18.

Phenology: Flowering Jul–Aug.
Habitat: Open coniferous forests, montane and subalpine meadows
Elevation: 500–3000 m



Alta., B.C., Colo., Idaho, Mont., Nev., Utah, Wash., Wyo.


Forms of Eucephalus engelmannii from the Cascade Mountains with leaves more densely pubescent on the abaxial faces may reflect intergradation with E. ledophyllus.

Selected References


Lower Taxa

... more about "Eucephalus engelmannii"
Geraldine A. Allen +
(D. C. Eaton) Greene +
Aster elegans var. engelmannii +
Engelmann’s aster +
Alta. +, B.C. +, Colo. +, Idaho +, Mont. +, Nev. +, Utah +, Wash. +  and Wyo. +
500–3000 m +
Open coniferous forests, montane and subalpine meadows +
Flowering Jul–Aug. +
Illustrated +  and Endemic +
Aster engelmannii +
Eucephalus engelmannii +
Eucephalus +
species +