Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Eucephalus vialis

Eucephalus elegans

wayside aster

elegant aster
Habit Perennials, 60–120 cm (caudices stout). Perennials 30–70 cm (caudices woody; herbage scabrous).
Stems

erect, pilose to glandular-pubescent.

erect, moderately scabrous and/or glandular.
Leaves

middle and distal cauline blades lanceolate-elliptic, 5–9 cm × 15–30 mm, abaxial faces usually glabrous, sometimes sparsely pubescent, adaxial faces glandular-pubescent.

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

stipitate-glandular.

glandular-puberulent.
Involucres

turbinate, 8–10 mm.

turbinate-cylindric, 6–9 mm.
Ray florets

0.

Phyllaries

in 3–6 series (sometimes reddish at margins and apices), linear to linear-oblong (strongly unequal), apices acute to acuminate, abaxial faces stipitate-glandular.

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

5–50(–120) in racemiform to paniculiform arrays.

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

pilose;

pappus bristles in 2 series, smooth or ± barbellate.

strigose;

pappus bristles in 2 series, barbellate.
Rays

usually 5 or 8, purple.
2n

= 18.

Eucephalus vialis

Eucephalus elegans
Phenology Flowering Jul. Flowering Jul–Aug.
Habitat Dry open oak or coniferous woods Open meadows, aspen forests, rocky open slopes
Elevation 200–500 m (700–1600 ft) 1100–3200 m (3600–10500 ft)
Distribution
from FNA
OR
[BONAP county map]
from FNA
CO; ID; MT; NV; OR; UT
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Eucephalus vialis is only known from Lane and Douglas counties. It is considered threatened. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 42. FNA vol. 20, p. 40.
Parent taxa Asteraceae > tribe Astereae > Eucephalus Asteraceae > tribe Astereae > Eucephalus
Sibling taxa
E. breweri, E. elegans, E. engelmannii, E. glabratus, E. glaucescens, E. gormanii, E. ledophyllus, E. paucicapitatus, E. tomentellus
E. breweri, E. engelmannii, E. glabratus, E. glaucescens, E. gormanii, E. ledophyllus, E. paucicapitatus, E. tomentellus, E. vialis
Synonyms Aster vialis Aster perelegans, E. perelegans
Name authority Bradshaw: Torreya 20: 122. (1921) Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 298. (1840)
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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora

The species comparison tool is brought to you by:
Northwest Wildflowers