Compilation
Erigeron hyssopifolius

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Name

Identification
Aster graminifolius Pursh [family ASTERACEAE ] Erigeron hyssopifolius Michx. [family ASTERACEAE ] (stored under name);
Related name
  • Erigeron hyssopifolius
  • Aster graminifolius
Common name
  • Hyssop-leaf fleabane, Flora of North America Vol. 20
  • vergerette à feuilles d’hysope, Flora of North America Vol. 20

Flora

Entry for Erigeron hyssopifolius Michaux [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Erigeron hyssopifolius Michaux [family COMPOSITAE], Fl. Bor.-Amer., 2: 123. 1803
Erigeron hyssopifolius var. anticostensis Victorin & J. Rousseau [family COMPOSITAE]
Erigeron hyssopifolius var. villicaulis Fernald [family COMPOSITAE]
Past names
hyssopifolium
Treatment Author(s)
Guy L. Nesom
Information
Perennials, 5–35 cm; rhizomatous, fibrous-rooted, caudices sometimes branched. Stems erect, sparsely and loosely strigose to strigoso-villous, eglandular. Leaves: basal and proximal cauline much reduced or present as scales; cauline blades linear to linear-oblong or oblong-lanceolate, 10–30 × 1–5 mm, largest at midstem, then relatively even-sized to peduncles, margins entire, sometimes prominently ciliate, faces glabrous or sparsely villous. Heads 1(–5). Involucres 4–6 × 6–12 mm. Phyllaries in 2–3 series, loosely and sparsely strigose, eglandular. Ray florets 20–50; corollas white, less commonly pinkish, or aging pinkish, 4–8 mm, laminae not coiling or reflexing. Disc corollas 3–4.6 mm. Cypselae 1.3–1.6 mm, 5–6-nerved, faces glabrous; pappi: outer of setae, inner of 25–35 bristles. 2n = 18.
Phenology
jun-aug (summer)
Altitude range
0–500 m;
Distribution
USA MaineUSA Mich.USA N.H.USA N.Y.USA Vt.Canada Alta.Canada Man.Canada N.B.Canada Nfld. and Labr. (Nfld.)Canada N.W.T.Canada N.S.Canada NunavutCanada Ont.Canada Que.Canada Sask.Canada Yukon
Discussion
Variety villicaulis, from Anticosti Island (Quebec) and Newfoundland, has been distinguished on the basis of its relatively shorter stature (mostly 3–15 cm) and greater ratio of peduncle to leafy-stem lengths (stems and peduncles as long as or longer than the leafy parts of stems); the distinction appears to be arbitrary.

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