Eurybia radulina

(A. Gray) G. L. Nesom

Phytologia 77: 261. 1995.

Common names: Roughleaf aster
Endemic
Basionym: Aster radulinus A. Gray Proc. Amer. Acad. Arts 8: 388. 1872
Synonyms: Aster eliasii A. Nelson Weberaster radulinus (A. Gray) A. Löve & D. Löve
Treatment appears in FNA Volume 20. Treatment on page 369. Mentioned on page 366, 368, 370, 459.

Plants 10–70 cm, laxly cespitose (grayish green), eglandular; rhizomes elongate, slender, woody. Stems 1–3, ascending to erect, often purple, simple, flexuous, proximally glabrescent or sparsely villous, distally ± densely villous. Leaves cauline, firm, margins slightly revolute, coarsely serrate or (distal) entire, scabrous to strigoso-ciliate, teeth mucronate, ± markedly veined, apices mucronate, abaxial faces scabrous, adaxial scabroso-strigose; proximal mostly withering by flowering, petioles winged, shorter than blades, bases clasping, blades elliptic to obovate 12–45+ × 7–20+ mm, smaller than mid, apices obtuse; mid narrowly winged-petiolate (petioles short with ± clasping bases), distally subpetiolate or sessile, blades ovate or elliptic to broadly oblanceolate or obovate, 32–85 (–130) × 4–40 mm, gradually reduced distally, bases usually attenuate, sometimes cuneate, apices obtuse to acute; distal (arrays) oblanceolate to lanceolate, 5–28 × 1–8 mm, more sharply reduced. Heads 5–30+ in flat-topped, corymbiform arrays. Peduncles densely villous; bracts 0–1, scabroso-strigose. Involucres campanulate, 6–9 mm, shorter than pappi. Phyllaries 38–62 in 4–5 series, midnerves slightly raised (outer), oblong (outer) to lanceolate-linear or linear (inner), unequal, membranous, bases indurate, ± rounded, green zones to scarious margins in distal 1/3–1/2 (outer; seldom ± wholly foliaceous) to 1/5 or none (inner), margins often purple, hyaline, narrowly scarious, erose, densely villoso-ciliate, apices appressed, sometimes purplish-tinged, usually acute, sometimes obtuse, adaxial faces villous. Ray-florets 10–15; corollas white to sometimes pale violet or purple, 8.5–11 (–13) × 1.3–2.3 mm. Disc-florets 30–70; corollas yellow becoming purple or pinkish-tinged, 6–7 (–8) mm, ± ampliate, tubes equaling to longer than funnelform-campanulate throats, lobes usually erect, sometimes ± spreading, lanceolate, 1–1.3 mm. Cypselae tawny, fusiform, 3–3.5 mm, slightly compressed, ribs 7–9 (brown, translucent), faces strigillose; pappi of tawny bristles 2.7–3 mm, ± equaling disc corollas. 2n = 18, 27.


Phenology: Flowering summer.
Habitat: Dry rock outcrops, edges of forests, open forests, mostly on slopes, foothill oak woodlands, oak, oak-fir, yellow pine forests
Elevation: (10–)100–1600 m

Distribution

V20-850-distribution-map.gif

B.C., Calif., Oreg., Wash.

Discussion

Eurybia radulina is confined mostly west of the Cascades, from southern Vancouver Island (British Columbia) to the southern Coast Ranges, north Channel Islands, and central Sierra Nevada in California. It often is confused with E. merita in the western, coastal states where both are found, though populations are rarely if ever sympatric, the former apparently thriving at lower elevations than the latter.

Selected References

None.

Lower Taxa

None.

"[" is not declared as a valid unit of measurement for this property."]" is not declared as a valid unit of measurement for this property.

... more about "Eurybia radulina"
villous +  and scabroso-strigose +
not tailed +, rounded +  and obtuse +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
purplish-tinged +
distinct +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
1.2 cm12 mm <br />0.012 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
scarious +
7mm +  and 20mm +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
flat-topped +
Luc Brouillet +
(A. Gray) G. L. Nesom +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
1.2 cm12 mm <br />0.012 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
rounded +, cuneate +, attenuate +, obtuse +, elliptic +  and obovate +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
indurate +
7mm;20mm +
Aster radulinus +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
8.5 cm85 mm <br />0.085 m <br /> (13 cm130 mm <br />0.13 m <br />) +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
3.2 cm32 mm <br />0.032 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
elliptic;broadly oblanceolate or obovate +
reduced +  and by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
4mm;40mm +
rugulose +  and muricate +
scabroso-strigose +
barbellulate +  and barbellate +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Roughleaf aster +
not 2-lipped +  and actinomorphic +
1.1 cm11 mm <br />0.011 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
yellow becoming purple or pinkish-tinged +, purple +, pale violet +  and white +
0.85 cm8.5 mm <br />0.0085 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
ampliate +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
7-12(-18)-nerved +
beaked +, 2-ribbed +  and 5-ribbed +
compressed +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
0.5 cm5 mm <br />0.005 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
oblanceolate +  and lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
B.C. +, Calif. +, Oreg. +  and Wash. +
(10–)100–1600 m +
strigillose +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry rock outcrops, edges of forests, open forests, mostly on slopes, foothill oak woodlands, oak, oak-fir, yellow pine forests +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.4 cm14 mm <br />0.014 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
campanulate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
12mm;45mm +
obtuse;obtuse;obtuse;elliptic;obovate +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
spreading;erect +
lanceolate +
entire +  and serrate +
scabrous to strigoso-ciliate +
sessile +, subpetiolate +  and winged-petiolate +
oblong +  and lanceolate-linear or linear +
2-carpellate +
barbellulate +  and barbellate +
pinkish +, yellowish +, tan +, tawny +  and cinnamon +
persistent +
unequal +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
12mm;45mm +
obtuse +, elliptic +  and obovate +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
Flowering summer. +
oblong +  and oblanceolate lanceolate or linear +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
1.2 cm12 mm <br />0.012 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
by flowering , petioles winged , shorter tby flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices by flowering , petioles winged , shorter than blades , bases clasping , blades elliptic to obovate 12-45+×7-20+ mm , smaller than mid leaves , apices-20+ mm , smaller than mid leaves , apices +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;slightly convex +
7 +  and 9 +
exalbuminous +
flexuous +
ascending +  and erect +
1 +  and 3 +
appendaged +  and truncate +
papillate +  and smooth +
Aster eliasii +  and Weberaster radulinus +
Eurybia radulina +
species +
funnelform-campanulate +
mucronate +
ampliate +
10 cm100 mm <br />0.1 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
plant +  and cespitose +
hyaline +  and green +
scarious +