Eucephalus vialis

Bradshaw

Torreya 20: 122. 1921.

Common names: Wayside aster
EndemicConservation concern
Synonyms: Aster vialis (Bradshaw) S. F. Blake
Treatment appears in FNA Volume 20. Treatment on page 42. Mentioned on page 39.

Perennials, 60–120 cm (caudices stout). Stems erect, pilose to glandular-pubescent. 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. Heads 5–50 (–120) in racemiform to paniculiform arrays. Peduncles stipitate-glandular. Involucres turbinate, 8–10 mm. 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. Ray-florets 0. Cypselae pilose; pappus bristles in 2 series, smooth or ± barbellate.


Phenology: Flowering Jul.
Habitat: Dry open oak or coniferous woods
Elevation: 200–500 m

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.

Selected References

None.

Lower Taxa

None.
... more about "Eucephalus vialis"
stipitate-glandular +, pubescent +  and glabrous +
glandular-pubescent +
not tailed +, rounded +  and obtuse +
distinct +
glabrous +, stipitate-glandular +, tomentose +  and puberulent +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
racemiform +  and paniculiform +
indeterminate +  and determinate +
Geraldine A. Allen +
Bradshaw +
decurrent +
compound +  and simple +
linear;lanceolate;linear;lanceolate;oblong;elliptic;ovate +
rugulose +  and muricate +
barbellate +  and smooth +
whitish +  and tawny +
Wayside aster +
not 2-lipped +  and actinomorphic +
yellow +, white +, pink +  and purple +
ampliate +
flattened +  and obconic +
fertile +  and bisexual +
fertile +  and bisexual +
200–500 m +
stipitate-glandular +, woolly +, cottony +, scabrous +  and glabrate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry open oak or coniferous woods +
discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
reflexed;erect +
triangular +
5 cm50 mm <br />0.05 m <br /> (9 cm90 mm <br />0.09 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
2-carpellate +
barbellate +  and smooth +
persistent +
stipitate-glandular +
Flowering Jul. +
linear +  and linear-oblong +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
Endemic +  and Conservation concern +
glandular +, eglandular +  and simple +
appendaged +  and truncate +
papillate +  and smooth +
Aster vialis +
Eucephalus vialis +
Eucephalus +
species +
60 cm600 mm <br />0.6 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
tree +, shrub +  and subshrub +