Canadanthus modestus

(Lindley) G. L. Nesom
Phytologia 77: 251. 1995.
Common names: Great northern or western bog aster aster modeste
IllustratedEndemic
Basionym: Aster modestus Lindley in W. J. Hooker, Fl. Bor.-Amer. 2: 8. 1834
Synonyms: Aster major (Hooker) Porter Aster modestus var. major (Hooker) Muenscher Aster sayianus Lessing ex Bongard Aster unalaschensis var. major Hooker Weberaster modestus
Treatment appears in FNA Volume 20. Treatment on page 459. Mentioned on page 488.

Plants openly colonial; rhizomes 1–3+ from base of each stem, herbaceous, ± woody with age. Stems 1, often glabrate proximally to ± villous, distally stipitate-glandular. Leaves: proximal scalelike, withering by flowering; blades (16–)50–130 × (4–)10–30(–40) mm, reduced distally, thin, bases auriculate-clasping, margins ± scabrous to (distal) stipitate-glandular. Heads (1–)2–40+. Peduncles sometimes villous, densely stipitate-glandular; bracts 1–2(–3), linear-lanceolate, stipitate-glandular. Phyllaries squarrose, innermost appressed, apices often ± purplish, acuminate. Ray floret laminae 7–11(–15) × 0.8–1.2 mm. Disc floret corollas 5–7 mm, glabrous, lobes 0.5–0.7 mm. Cypselae stramineous, stipitate; pappi surpassing or ± equaling disc corollas. 2n = 18.


Phenology: Flowering late summer–early fall.
Habitat: Cold, wet soils, often ± calcareous, moist woodlands, often along streams, lake shores, alder thickets, open fields, cedar swamps, in montane and boreal forests
Elevation: 0–1300+ m

Distribution

V20-1062-distribution-map.gif

Alta., B.C., Man., N.B., Ont., Sask., Yukon, Que., Alaska, Idaho, Mich., Minn., Mont., N.Dak., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Canadanthus modestus"
Luc Brouillet +
(Lindley) G. L. Nesom +
Aster modestus +
Great northern or western bog aster +  and aster modeste +
Alta. +, B.C. +, Man. +, N.B. +, Ont. +, Sask. +, Yukon +, Que. +, Alaska +, Idaho +, Mich. +, Minn. +, Mont. +, N.Dak. +, Oreg. +  and Wash. +
0–1300+ m +
Cold, wet soils, often ± calcareous, moist woodlands, often along streams, lake shores, alder thickets, open fields, cedar swamps, in montane and boreal forests +
Flowering late summer–early fall. +
Illustrated +  and Endemic +
Aster major +, Aster modestus var. major +, Aster sayianus +, Aster unalaschensis var. major +  and Weberaster modestus +
Canadanthus modestus +
Canadanthus +
species +