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dwarf yellow fleabane

golden fleabane

Habit Plants perennial, 3–20 cm; taprooted, usually with many woody, branching caudices. Plants perennial, 5–10 cm; fibrous-rooted, with short, usually unbranched caudices.
Stems

erect; hirsute, eglandular to minutely glandular.

erect; hirsute to villous, 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, spatulate to oblanceolate, 10–50 × 5–10 mm;

margins entire;

surfaces moderately to densely strigose, eglandular to minutely glandular.

Cauline leaves

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

5–10 × 1–5 mm abruptly reduced, often a single linear bract.

Involucres

4–7 × 10–16 mm.

4–6 × 10–15 mm.

Ray florets

20–60;

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

40–60, bright yellow;

rays 4–6 × 0.5–1.5 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, often purplish colored;

surfaces moderately to densely woolly-villous, sparsely glandular.

Fruits

2–3 mm, moderately strigose;

inner pappi of numerous barbellate bristles.

2–3 mm, moderately strigose;

inner pappi of numerous barbellate bristles.

Heads

1, radiate or disciform.

1, radiate.

2n

=18.

Erigeron chrysopsidis

Erigeron aureus

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

Western United States. 3 varieties.

Ridges, talus, rocky slopes. Flowering Jul–Aug. 1600–2600 m. BW. WA; north to British Columbia, northeast to Alberta. Native.

In Oregon, this native species is currently known only from a single collection in the Eagle Cap Wilderness, Wallowa Mountains.

Source Flora of Oregon, volume 2, page 254
James Riser, Stephen Meyers
Flora of Oregon, volume 2, page 252
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. 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
Subordinate taxa
E. chrysopsidis var. austiniae, E. chrysopsidis var. brevifolius, E. chrysopsidis var. chrysopsidis
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