Flora of North America species comparison

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Eucephalus glaucescens

Eucephalus tomentellus

Klickitat aster

brickellbush aster, hairy rayless aster, rayless aster
Habit Perennials, 40–160 cm (with caudices; herbage glabrous, ± glaucous). Perennials 40–90 cm (caudices woody).
Stems

erect, glabrous.

erect, woolly or cottony.
Leaves

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

mid and distal blades lanceolate to elliptic, 2.5–6 cm × 7–20 mm, abaxial faces glabrous or glabrate, adaxial ± densely woolly to cottony.
Peduncles

glabrous or sparsely stipitate-glandular.

pubescent.
Involucres

turbinate to campanulate, 7–9 mm.

turbinate, 7–10 mm.
Phyllaries

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

in 4–6 series (often reddish at margins and apices), linear-oblong to ovate (strongly unequal), apices acute, abaxial faces tomentose to stipitate-glandular.
Heads

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

3–40 in racemiform to paniculiform arrays.
Cypselae

obconic, flattened, strigose;

pappus bristles in 2 series, smooth or ± barbellate.

glabrous or pilose;

pappus bristles in 2 series, ± barbellate.
Rays

commonly 8 or 13, purple.

(0–)1–3(–6), violet-purple.

Eucephalus glaucescens

Eucephalus tomentellus
Phenology Flowering Jul–Sep(–Oct). Flowering Jul–Aug.
Habitat Open coniferous woods, meadows, brushy slopes Open oak or coniferous woods, forest openings and rocky cliffs
Elevation 800–1500 m (2600–4900 ft) 1300–2400 m (4300–7900 ft)
Distribution
from FNA
WA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR
[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.)

Eucephalus tomentellus grows in the Siskiyou Mountains of southwestern Oregon and northern California. It may intergrade with E. breweri and E. glabratus.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 41. FNA vol. 20, p. 42.
Parent taxa Asteraceae > tribe Astereae > Eucephalus Asteraceae > tribe Astereae > Eucephalus
Sibling taxa
E. breweri, E. elegans, E. engelmannii, E. glabratus, E. gormanii, E. ledophyllus, E. paucicapitatus, E. tomentellus, E. vialis
E. breweri, E. elegans, E. engelmannii, E. glabratus, E. glaucescens, E. gormanii, E. ledophyllus, E. paucicapitatus, E. vialis
Synonyms Aster engelmannii var. glaucescens, Aster glaucescens, Aster glaucophyllus, Aster serrulatus, E. glaucophyllus, E. serrulatus Sericocarpus tomentellus, Aster brickellioides, Aster tomentellus, E. bicolor, E. brickellioides
Name authority (A. Gray) Greene: Pittonia 3: 56. (1896) (Greene) Greene: Pittonia 3: 55. (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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