131.
Erigeron peregrinus
(Banks ex Pursh) Greene, Pittonia. 3: 166. 1897.
Wandering fleabane
Aster peregrinus
Banks ex Pursh, Fl. Amer. Sept. 2: 556. 1813
Perennials,
5—55(—70) cm; rhizomatous, fibrous-rooted, caudices usually simple, thick.
Stems
erect to basally ascending, hirsute to hirsuto- or strigoso-villous (hairs loosely appressed, slightly crinkled), sometimes loosely strigose distally (var.
thompsonii
), eglandular.
Leaves
basal (persistent) and cauline; basal blades linear-oblanceolate to broadly lanceolate or spatulate, (30—)50—100 × 5—25 mm, cauline gradually reduced distally (bases distinctly subclasping, except when greatly reduced), margins entire, faces hirsute, hirsuto-villous, sparsely villosulous, glabrate, or glabrous, eglandular.
Heads
1.
Involucres
5—9(—12) × 10—22(—25) mm.
Phyllaries
in 2—3(—4) series (margins usually ciliate), abaxially sparsely to moderately villoso-hirsute, usually eglandular, sometimes sparsely gland-dotted apically, rarely sparsely so over adaxial faces (especially in var.
thompsonii
).
Ray florets
30—80; corollas usually blue to rose purple or pink, sometimes white to pale blue, 12—20(—25) mm (mostly 1.5—3 mm wide), laminae coiling.
Disc corollas
3.5—4.5 mm.
Cypselae
2.5—2.8 mm, (4—)5(—7)-nerved, faces sparsely strigose;
pappi:
outer of setae, inner of 20—32 bristles.
Varieties 2 (2 in the flora): nw North America.
