Flora of North America species comparison

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Eucephalus elegans

Eucephalus glaucescens

elegant aster

Klickitat aster
Habit Perennials 30–70 cm (caudices woody; herbage scabrous). Perennials, 40–160 cm (with caudices; herbage glabrous, ± glaucous).
Stems

erect, moderately scabrous and/or glandular.

erect, glabrous.
Leaves

mid and cauline blades linear-oblong or linear-lanceolate, 2–6 cm × 3–10 mm, faces moderately scabrous and ± short-stipitate-glandular.

mid and distal blades linear to narrowly lance-elliptic, 4–10 cm × 4–16 mm.
Peduncles

glandular-puberulent.

glabrous or sparsely stipitate-glandular.
Involucres

turbinate-cylindric, 6–9 mm.

turbinate to campanulate, 7–9 mm.
Phyllaries

in 3–5 series (often purplish at margins), ovate, margins eciliate, apices acute, abaxial faces moderately to densely puberulent and glandular.

in 3–5 series (reddish distally), linear to lanceolate or lance-ovate (unequal), apices acuminate, abaxial faces sparsely stipitate-glandular.
Heads

3–8(–15) in racemiform to corymbiform arrays.

5–20(–60) in racemiform to paniculiform arrays.
Cypselae

strigose;

pappus bristles in 2 series, barbellate.

obconic, flattened, strigose;

pappus bristles in 2 series, smooth or ± barbellate.
Rays

usually 5 or 8, purple.

commonly 8 or 13, purple.
2n

= 18.

Eucephalus elegans

Eucephalus glaucescens
Phenology Flowering Jul–Aug. Flowering Jul–Sep(–Oct).
Habitat Open meadows, aspen forests, rocky open slopes Open coniferous woods, meadows, brushy slopes
Elevation 1100–3200 m (3600–10500 ft) 800–1500 m (2600–4900 ft)
Distribution
from FNA
CO; ID; MT; NV; OR; UT
[WildflowerSearch map]
[BONAP county map]
from FNA
WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Eucephalus glaucescens is known from the vicinity of Mt. Adams in Klickitat, Skamania, and Yakima counties. Intermediates with E. ledophyllus have been reported.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 40. FNA vol. 20, p. 41.
Parent taxa Asteraceae > tribe Astereae > Eucephalus Asteraceae > tribe Astereae > Eucephalus
Sibling taxa
E. breweri, E. engelmannii, E. glabratus, E. glaucescens, E. gormanii, E. ledophyllus, E. paucicapitatus, E. tomentellus, E. vialis
E. breweri, E. elegans, E. engelmannii, E. glabratus, E. gormanii, E. ledophyllus, E. paucicapitatus, E. tomentellus, E. vialis
Synonyms Aster perelegans, E. perelegans Aster engelmannii var. glaucescens, Aster glaucescens, Aster glaucophyllus, Aster serrulatus, E. glaucophyllus, E. serrulatus
Name authority Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 298. (1840) (A. Gray) Greene: Pittonia 3: 56. (1896)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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