Eucephalus glabratus

(Greene) Greene

Pittonia 3: 56. 1896.

Common names: Siskiyou aster
Endemic
Basionym: Aster brickellioides var. glabratus Greene Pittonia 2: 17. 1889
Synonyms: Aster siskiyouensis A. Nelson & J. F. Macbride Eucephalus glandulosus Eastwood
Treatment appears in FNA Volume 20. Treatment on page 41. Mentioned on page 39, 40, 42.

Perennials, 30–60 cm (rhizomes branched). Stems ascending to erect, glabrous or sparsely stipitate-glandular. Leaves: mid and distal blades lanceolate to lanceovate, 3–6 cm × 5–15 mm, ± glabrous. Heads 3–8 in corymbiform arrays. Peduncles glabrous or sparsely glandular. Involucres campanulate, 8–9 mm. Phyllaries in 3–5 series (sometimes reddish apically), lanceolate to narrowly ovate (unequal), apices acute, abaxial glabrous or sparsely glandular. Rays 0 or 1–2 (–4), violet-purple. Cypselae appressed-pilose; pappus bristles in 2 series, ± smooth.


Phenology: Flowering Jul–Aug.
Habitat: Dry open oak or coniferous forest or chaparral
Elevation: 700–2300 m

Discussion

Eucephalus glabratus is found in the Klamath Mountains of northwestern California and southwestern Oregon. The species is reported to intergrade with E. breweri, E. ledophyllus, and E. tomentellus.

Selected References

None.

Lower Taxa

None.
... more about "Eucephalus glabratus"
not tailed +, rounded +  and obtuse +
distinct +
glandular +  and glabrous +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Geraldine A. Allen +
(Greene) Greene +
decurrent +
Aster brickellioides var. glabratus +
compound +  and simple +
linear;lanceolate;linear;lanceolate;oblong;elliptic;ovate +
rugulose +  and muricate +
barbellate +  and smooth +
whitish +  and tawny +
Siskiyou aster +
not 2-lipped +  and actinomorphic +
yellow +, white +, pink +  and purple +
ampliate +
appressed-pilose +
flattened +  and obconic +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Oreg. +
700–2300 m +
stipitate-glandular +, woolly +, cottony +, scabrous +  and glabrate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry open oak or coniferous forest or chaparral +
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 />) +
campanulate +
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
reflexed;erect +
triangular +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
2-carpellate +
persistent +
glandular +  and glabrous +
Flowering Jul–Aug. +
lanceolate +  and narrowly ovate +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
glandular +, eglandular +  and simple +
ascending +  and erect +
appendaged +  and truncate +
papillate +  and smooth +
Aster siskiyouensis +  and Eucephalus glandulosus +
Eucephalus glabratus +
Eucephalus +
species +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
tree +, shrub +  and subshrub +