29.
Erigeron pumilus
Nuttall, Gen. N. Amer. Pl. 2: 147. 1818.
Shaggy fleabane
Perennials,
5—30(—50) cm; taprooted, caudices with relatively short and thick branches.
Stems
erect, hirsute to hispido-hirsute (often with slightly deflexed hairs), minutely to stipitate glandular.
Leaves
basal (persistent) and cauline (petioles prominently ciliate, hairs thick-based, spreading); basal blades oblanceolate to narrowly oblanceolate, 20—80 × 1—4(—5) mm, margins entire, faces hispid to hispido-hirsute, little, if at all, glandular; cauline on distal
1
/ 2 —
3
/ 4 of stems, blades becoming linear-lanceolate, little reduced distally.
Heads
1—5(—50).
Involucres
4—7 × 7—15 mm.
Phyllaries
in 2—4 series (midvein region orange to yellowish), hirsute to hispido-hirsute, minutely glandular.
Ray florets
50—100; corollas white to pink, less commonly bluish, 6—15 mm, laminae reflexing.
Disc corollas
3—5 mm (throats distinctly indurate and inflated, glabrous or sparsely puberulent with glandular-viscid, hairs blunt).
Cypselae
1.4—1.8 mm, 2-nerved, faces sparsely strigose;
pappi:
outer of setae or subulate scales (0.1—0.3 mm), inner of 12—27 bristles.
Varieties 2 (2 in the flora): w North America.
