Eucephalus engelmannii

(D. C. Eaton) Greene

Pittonia 3: 54. 1896.

Common names: Engelmann’s aster
IllustratedEndemic
Basionym: Aster elegans var. engelmannii D. C. Eaton in S. Watson, Botany (Fortieth Parallel), 144. 1871 (as engelmanni)
Synonyms: Aster engelmannii (D. C. Eaton) A. Gray
Treatment appears in FNA Volume 20. Treatment on page 40. Mentioned on page 41.

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 lanceovate, 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 lanceovate, 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

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.

Lower Taxa

None.
... more about "Eucephalus engelmannii"
not tailed +, rounded +  and obtuse +
distinct +
glabrous +, stipitate-glandular +, tomentose +  and puberulent +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
racemiform +  and corymbiform +
indeterminate +  and determinate +
Geraldine A. Allen +
(D. C. Eaton) Greene +
decurrent +
Aster elegans var. engelmannii +
compound +  and simple +
linear;lanceolate;linear;lanceolate;oblong;elliptic;ovate +
rugulose +  and muricate +
barbellate +  and smooth +
whitish +  and tawny +
Engelmann’s aster +
not 2-lipped +  and actinomorphic +
yellow +, white +, pink +  and purple +
ampliate +
flattened +  and obconic +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, B.C. +, Colo. +, Idaho +, Mont. +, Nev. +, Utah +, Wash. +  and Wyo. +
500–3000 m +
glandular +, villous +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open coniferous forests, montane and subalpine meadows +
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 />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
reflexed;erect +
triangular +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
2-carpellate +
persistent +
stipitate-glandular +
Flowering Jul–Aug. +
villous +, pubescent +  and glandular or glabrate abaxially +
linear +  and lanceovate acute +
list +  and count +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
Illustrated +  and Endemic +
eglandular +  and more or less densely glandular +
ascending +  and erect +
appendaged +  and truncate +
papillate +  and smooth +
Aster engelmannii +
Eucephalus engelmannii +
Eucephalus +
species +
120 cm1,200 mm <br />1.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
50 cm500 mm <br />0.5 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
tree +, shrub +  and subshrub +