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aster à feuilles de linaires, flax-leaf ankle-aster, flax-leaf stiff-aster, flaxleaf aster, flaxleaf whitetop or aster

Habit Plants 10–50(–70) cm (commonly cespitose; rhizomes compact, crownlike, woody, fibrous-rooted).
Stems

proximally herbaceous or slightly woody, eglandular.

Leaves

separated by evident internodes;

blades uniform, linear to narrowly oblong or oblanceolate, 12–40 mm, margins green, faces glabrous, eglandular.

Involucres

6–9 mm.

Disc florets

bisexual, fertile;

corollas (4.5–)5–7 mm.

Heads

usually in loose, corymbiform arrays, sometimes borne singly.

Cypselae

(2.5–)3.5–4 mm, eglandular.

2n

= 18.

Ionactis linariifolia

Phenology Flowering (Jun–)Sep–Nov.
Habitat Sandy habitats, often seeps or other moist sites, commonly in longleaf pine communities along Gulf Coast, or inland sites of rocky hills, ridges, bluffs, sometimes in clay, in oak pine woods, sandy cracks and ledges of acid rocks in stream falls or rapids, open jackpine stands on sand
Elevation 5–800(–900) m (0–2600(–3000) ft)
Distribution
from FNA
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MO; MS; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; NB; QC
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Discussion

Ionactis linariifolia was noted by M. L. Fernald (1950) to occur in “s. Minn.”; G. B. Ownbey and T. Morley (1991) did not include it for Minnesota.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 83.
Parent taxa Asteraceae > tribe Astereae > Ionactis
Sibling taxa
I. alpina, I. caelestis, I. elegans, I. stenomeres
Synonyms Aster linariifolius, Aster linariifolius var. victorinii
Name authority (Linnaeus) Greene: Pittonia 3: 245. (1897)
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