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dwarf yellow fleabane

Eaton's fleabane

Habit Plants perennial, 3–20 cm; taprooted, usually with many woody, branching caudices. Plants perennial, 4–28 cm; taprooted, caudices branching or not.
Stems

erect; hirsute, eglandular to minutely glandular.

erect to ascending or decumbent, usually strigose to occasionally villous, becoming woolly distally, sometimes minutely glandular.

Basal leaves

persistent in dense clusters, linear to narrowly oblanceolate, 10–80 × 1–3 mm;

margins entire with hispid hairs;

surfaces hirsute to hispid, sometimes nearing strigose.

persistent, linear to narrowly oblanceolate, 20–150 × 2–10 mm;

margins entire, usually with 3 distinct basal veins;

tips usually rounded to acute or acuminate;

surfaces strigose to hirsute, eglandular.

Cauline leaves

abruptly reduced to (0)1–3 linear bracts.

gradually to abruptly reduced distally, sometimes becoming linear and bract-like.

Involucres

4–7 × 10–16 mm.

4–6 × 8–15 mm.

Ray florets

20–60;

corollas with well-developed yellow rays, 4–8 × 0.5–2 mm, or tubular and short, or rays lacking.

20–45, white to purple;

rays 3–8 × 0.8–2.5 mm.

Disc florets

corollas 4–5 mm.

corollas 3–4 mm.

Phyllaries

in 2–3 series, sparsely to moderately hispid-villous, often minutely glandular.

in 2–3 series;

surfaces sparsely sericeous to densely villous, sometimes minutely glandular.

Fruits

2–3 mm, moderately strigose;

inner pappi of numerous barbellate bristles.

2–3 mm, glabrate to remotely strigose;

inner pappi of numerous barbellate bristles.

Heads

1, radiate or disciform.

1–3 in scape- or corymb-like arrays, radiate.

Erigeron chrysopsidis

Erigeron eatonii

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

Western United States. 3 varieties.

Western United States. 6 varieties; 3 varieties treated in Flora.

Source Flora of Oregon, volume 2, page 254
James Riser, Stephen Meyers
Flora of Oregon, volume 2, page 256
James Riser, Stephen Meyers
Sibling taxa
E. acris, E. aliceae, E. annuus, E. aphanactis, E. aureus, E. bloomeri, E. cascadensis, E. cervinus, 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. coulteri, E. decumbens, E. disparipilus, E. divergens, 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
Subordinate taxa
E. chrysopsidis var. austiniae, E. chrysopsidis var. brevifolius, E. chrysopsidis var. chrysopsidis
E. eatonii var. lavandulus, E. eatonii var. plantagineus, E. eatonii var. villosus
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