Erigeron pulchellus

Michaux

Fl. Bor.-Amer. 2: 124. 1803.

Common names: Hairy fleabane
IllustratedEndemic
Treatment appears in FNA Volume 20. Treatment on page 327. Mentioned on page 261, 267.

Perennials, 15–60 cm; rhizomatous, fibrous-rooted, primary rhizomes relatively slender, producing slender, herbaceous, scale-leaved, stoloniform rhizomes (rhizomes often not collected). Stems erect to ascending (usually abruptly dilated proximal to heads), villous (more densely so on proximal 1/2), eglandular. Leaves basal (persistent) and cauline; basal blades oblanceolate to obovate or suborbiculate, subspatulate, 20–130 (–180) × 6–30 (–50) mm, cauline gradually reduced distally (bases clasping and slightly auriculate), margins usually dentate to denticulate, rarely entire, faces sparsely to moderately hirsute to hirsuto-villous, sometimes glabrate or glabrous (especially adaxially), eglandular. Heads 1–4 (–9). Involucres 5–7 × 6–20 mm. Phyllaries in 2–3 (–4) series, sparsely to moderately hirsute to hirsuto-villous (cross-walls not distinctly colored), minutely glandular to stipitate-glandular. Ray-florets 50–80 (–100); corollas light blue to purplish, pink, or white, 6–10 mm, laminae coiling tardily at tips. Disc corollas 4.5–6 mm. Cypselae 1.3–1.8 mm, 2 (–4) -nerved, faces sparsely strigose to glabrate or glabrous; pappi: outer 0 or of setae, inner of (22–) 28–36 bristles.

Distribution

V20-738-distribution-map.gif

Ont., Que., Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Mass., Md., Mich., Minn., Miss., Mo., N.C., N.H., N.J., N.Y., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Va., Vt., W.Va., Wis.

Discussion

Varieties 3 (3 in the flora).

Selected References

None.

Key

1 Stems and leaves glabrous Erigeron pulchellus var. brauniae
1 Stems and leaves hirsute to hirsuto-villous > 2
2 Rays blue to pinkish; disc corollas 4.5–6 mm; cypselae glabrous or glabrate Erigeron pulchellus var. pulchellus
2 Rays white; disc corollas 4–4.5 mm; cypselae strigose Erigeron pulchellus var. tolsteadii
... more about "Erigeron pulchellus"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +, corymbiform +  and loose +
indeterminate +  and determinate +
Guy L. Nesom +
Michaux +
13 cm130 mm <br />0.13 m <br /> (18 cm180 mm <br />0.18 m <br />) +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
2 cm20 mm <br />0.02 m <br /> (13 cm130 mm <br />0.13 m <br />) +
subspatulate +, oblanceolate +  and obovate or suborbiculate +
0.6 cm6 mm <br />0.006 m <br /> (3 cm30 mm <br />0.03 m <br />) +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
Hairy fleabane +
not 2-lipped +  and actinomorphic +
light blue +  and purplish pink or white +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
fertile +  and bisexual +
Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Mass. +, Md. +, Mich. +, Minn. +, Miss. +, Mo. +, N.C. +, N.H. +, N.J. +, N.Y. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Va. +, Vt. +, W.Va. +  and Wis. +
sparsely strigose +  and glabrate or glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
turbinate;hemispheric +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
usually dentate +  and denticulate +
Not (?) +  and Scarious (?) +
2-carpellate +
3-nerved +  and 1-nerved +
hirsute +  and hirsuto-villous minutely glandular +
narrowly elliptic +  and linear-lanceolate +
Fl. Bor.-Amer. +
bearing subulate enations +, hairy +  and bristly +
stoloniform +
exalbuminous +
Illustrated +  and Endemic +
prostrate +  and decumbent +
erect +  and ascending +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron pulchellus +
Erigeron +
species +
inflated +  and tubular +
fibrous-rooted +  and rhizomatous +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
15 cm150 mm <br />0.15 m <br /> (60 cm600 mm <br />0.6 m <br />) +
tree +, shrub +  and subshrub +