Difference between revisions of "Eucephalus engelmannii"
Pittonia 3: 54. 1896.
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|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Eucephalus | |genus=Eucephalus |
Revision as of 21:28, 16 December 2019
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
Distribution
![V20-46-distribution-map.gif](/w/images/0/02/V20-46-distribution-map.gif)
Alta., B.C., Colo., Idaho, Mont., Nev., Utah, Wash., Wyo.
Discussion
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
None.