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Klamath fleabane

one-stem fleabane

Habit Plants perennial, 5–25 cm; taprooted, caudices branching. Plants perennial, 3–15 cm; fibrous-rooted, rhizomatous, caudices branched or not.
Stems

erect to decumbent-ascending; hirsute, eglandular;

hairs usually spreading and slightly reflexed.

erect, sparsely to moderately villous, eglandular.

Basal leaves

withering by flowering.

persistent, oblanceolate to spatulate, 50–350 × 30–90 mm;

margins entire, sometimes moderately ciliate;

surfaces glabrous to glabrate.

Cauline leaves

oblong to narrowly oblanceolate, 10–30 × 1–4 mm, slightly reduced distally or not;

margins entire;

surfaces moderately to densely hirsute, eglandular.

obovate to linear, abruptly reduced distally;

surfaces usually hirsute.

Involucres

4–6 × 8–14 mm.

3–7 × 8–16 mm.

Ray florets

20–40, lavender to purple;

rays 4–6 × 0.7–2 mm.

30–50+, lavender to purple;

rays 5–10 × 0.6–2.2 mm.

Disc florets

corollas 3.5–5 mm.

2–3 mm.

Phyllaries

in 2–3 unequal series;

surfaces glabrous to very sparsely hirsute, densely minutely glandular.

in 2 series;

margins usually ragged;

surfaces moderately to densely villous.

Fruits

2–3 mm, sparsely to densely strigose;

inner pappi of numerous barbellate bristles.

1–2 mm, sparsely strigose;

inner pappi of numerous barbellate bristles.

Heads

1–4 in loose corymb-like arrays, radiate.

1, radiate.

Erigeron klamathensis

Erigeron simplex

Distribution
[WildflowerSearch map]
[BONAP county map]
Discussion

Rocky areas, ridges, crevices. Flowering Jun–Sep. 500–1500 m. Sisk. CA. Native.

Rocky areas, meadows. Flowering Jul–Aug. 2400–3000 m. BW. ID, NV; northeast to MT, east to WY, southeast to CO, NM. Native.

Source Flora of Oregon, volume 2, page 258
James Riser, Stephen Meyers
Flora of Oregon, volume 2, page 261
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. 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. 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. speciosus, E. stanselliae, E. strigosus, E. tener, E. vagus
Synonyms Erigeron breweri, Erigeron breweri var. klamathensis Erigeron grandiflorus
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