Canadanthus modestus (Lindl.) G.L.Nesom

Giant mountain aster (en)

Species

Angiosperms > Asterales > Asteraceae > Canadanthus

Characteristics

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.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6 - 0.95
Root system rhizome
Rooting depth (meter) 0.3
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-8
Soil humidity 5-5
Soil texture -
Soil acidity 4-7
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Canadanthus modestus unspecified picture

Distribution

Canadanthus modestus world distribution map, present in Canada and United States of America

Conservation status

Canadanthus modestus threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:981706-1
WFO ID wfo-0000017731
COL ID QJ7G
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Aster modestus Canadanthus modestus Weberaster modestus Aster sayianus Aster mutatus Aster majus Aster modestus var. major Aster unalaschensis var. major Aster modestus var. modestus