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diffuse daisy, spreading fleabane

seaside daisy, seaside fleabane

Habit Plants annual or short-lived perennial, 12–50+ cm; taprooted, with short, branching caudices. Plants perennial, 3–30 cm; fibrous-rooted, rhizomatous, caudices usually simple, occasionally branching.
Stems

erect, ascending to decumbent, densely pilose to sparsely hirsute, minutely glandular at least distally.

decumbent, procumbent or ascending, sparsely to moderately hirsute, usually minutely glandular.

Basal leaves

persistent or withering by flowering, spatulate, 20–80 × 5–10 mm;

margins entire or with 1–2 coarse teeth;

surfaces moderately to densely strigose, usually eglandular.

persistent, obovate to broadly spatulate, 15–40 × 5–25 mm;

margins entire;

surfaces usually glabrous and eglandular.

Cauline leaves

numerous and well developed, elliptic, obovate, or linear, 5–30 × 1–4 mm, usually slightly reduced distally;

surfaces densely strigose to villous.

similar to basal, 7–30 × 3–15 mm, gradually reduced distally.

Involucres

2–4 × 6–10 mm.

5–10 × 10–21 mm.

Ray florets

75–150, light purple to lavender;

rays 2–5 × 0.25–0.6 mm.

70–100, lavender to purple;

rays 6–9 × 1–2 mm.

Disc florets

corollas 2–3 mm.

corollas 4–6 mm.

Phyllaries

in 2–3 series, usually with dark green or brown medial area and lighter colored stripe;

surfaces moderately to densely hirsute or strigose, moderately to densely glandular.

in 3–4 series;

surfaces moderately to densely villous, sparsely to moderately glandular.

Fruits

0.75–1 mm, glabrous to very sparsely strigose;

inner pappi of numerous barbellate bristles.

2–3 mm, sparsely to moderately strigose;

inner pappi of numerous barbellate bristles.

Heads

1–20+ in corymb-like arrays, radiate.

1(3), radiate.

2n

=18, 27, 36.

=18.

Erigeron divergens

Erigeron glaucus

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Dry open areas, roadsides, streambanks. Flowering May–Sep. 50–2200 m. BR, BW, Casc, Col, ECas, Est, Lava. CA, ID, WA; north to British Columbia, northeast to Alberta, east to SD, southeast to TX, south to Mexico. Native.

Coastal dunes, bluffs. Flowering May–Aug. 0–500 m. Est. CA. Native.

Source Flora of Oregon, volume 2, page 255
James Riser, Stephen Meyers
Flora of Oregon, volume 2, page 257
James Riser, Stephen Meyers
Sibling taxa
E. acris, E. aliceae, E. annuus, E. aphanactis, E. aureus, E. bloomeri, E. cascadensis, E. cervinus, E. chrysopsidis, E. compositus, E. corymbosus, E. coulteri, E. decumbens, E. disparipilus, E. eatonii, E. elegantulus, E. filifolius, E. foliosus, E. glacialis, E. glaucus, E. howellii, E. inornatus, E. karvinskianus, E. klamathensis, E. latus, E. linearis, E. lonchophyllus, E. nivalis, E. oreganus, E. peregrinus, E. petrophilus, E. philadelphicus, E. poliospermus, E. pumilus, E. simplex, E. speciosus, E. stanselliae, E. strigosus, E. tener, E. vagus
E. acris, E. aliceae, E. annuus, E. aphanactis, E. aureus, E. bloomeri, E. cascadensis, E. cervinus, E. chrysopsidis, E. compositus, E. corymbosus, E. coulteri, E. decumbens, E. disparipilus, E. divergens, E. eatonii, E. elegantulus, E. filifolius, E. foliosus, E. glacialis, E. howellii, E. inornatus, E. karvinskianus, E. klamathensis, E. latus, E. linearis, E. lonchophyllus, E. nivalis, E. oreganus, E. peregrinus, E. petrophilus, E. philadelphicus, E. poliospermus, E. pumilus, E. simplex, E. speciosus, E. stanselliae, E. strigosus, E. tener, E. vagus
Synonyms Erigeron divergens var. divergens
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