OregonFlora species comparison

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Erigeron flettii

Erigeron latus
Erigeron flettii

broad fleabane, Owyhee fleabane
Habit Plants perennial, 5–10 cm; taprooted, caudices branching.
Stems

erect, sparsely to moderately hirsute, densely minutely glandular.
Basal leaves

persistent, narrowly oblanceolate to spatulate, 15–50 × 1.3–4.5 mm;

margins entire;

tips rounded to acute or acuminate;

surfaces moderately to densely hirsute to nearly hispid, minutely glandular.
Cauline leaves

few, similar to basal, usually abruptly reduced distally.
Involucres

6–9 × 13–21 mm.
Ray florets

20–35, lavender to purple;

rays 6–11 × 1–2 mm.
Disc florets

4–5 mm.
Phyllaries

in 2–3 series, with dark medial area, sometimes with orange stripe;

surfaces sparsely to moderately hispid-hirsute, densely minutely glandular.
Fruits

2–4 mm, glabrate to sparsely strigose;

inner pappi of numerous barbellate bristles.
Heads

1, radiate.

Erigeron flettii

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

Open areas, sagebrush, streambanks. Flowering May–Jul. 1600–2000 m. Owy. ID, NV. Native.

Erigeron latus and E. poliospermus are very similar with the exception of the vestiture of the fruits. Further research is needed to determine if continued recognition of two distinct species is warranted.
Source Flora of Oregon, volume 2, page 258
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. 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. 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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