OregonFlora species comparison

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Erigeron flettii

Erigeron coulteri
Erigeron flettii

Coulter's fleabane
Habit Plants perennial, 15–55 cm; roots fibrous, rhizomatous, occasionally with branching caudices.
Stems

erect, sparsely villous, eglandular.
Basal leaves

occasionally withering by flowering, broadly oblanceolate-elliptic, 40–150 × 10–25 mm;

margins entire or occasionally with poorly developed teeth;

surfaces sparsely strigose or hirsute, eglandular.
Cauline leaves

lanceolate to elliptic, 10–80 × 2.5–25(30) mm, gradually reduced distally, bases clasping;

margins entire or with minute teeth.
Involucres

5–8 × 11–17 mm.
Ray florets

60–110, white;

rays 8–15 × 0.5–1 mm.
Disc florets

corollas 3–5 mm.
Phyllaries

in 2–3 series;

surfaces moderately to densely hirsute or villous, eglandular to minutely glandular.
Fruits

1.5–2 mm, sparsely strigose;

inner pappi of numerous barbellate bristles.
Heads

1(3), radiate.
2n

=18.

Erigeron flettii

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

Moist coniferous forests, wet meadows. Flowering Jun–Aug. 1100–2000 m. BW. CA, ID, NV; northeast to MT, east to WY, southeast to NM. Native.
Source Flora of Oregon, volume 2, page 255
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. divergens, 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. decumbens, E. disparipilus, E. divergens, 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
Web links 
Unless otherwise noted, all data comes from OregonFlora.



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