The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

dwarf blue fleabane, volcanic fleabane

rambling fleabane

Habit Plants perennial, 4–10 cm; taprooted, with branching caudices. Plants perennial, 3–10 cm; taprooted, caudices branching.
Stems

erect to basally ascending, sparsely to moderately strigose, eglandular.

erect, nearly glabrous to remotely hirsute, minutely glandular.

Basal leaves

persistent, linear to filiform, 20–50 × 0.5–1 mm, white, bases sheathing;

margins entire;

tips round to acute or acuminate;

surfaces sparsely to moderately strigose.

persistent, spatulate with 3–5 distal lobes, 6–25 × 3–10 mm;

margins entire;

surfaces moderately to densely hirsute.

Cauline leaves

abruptly reduced and usually restricted to basal ? of stem, bases sheathing.

absent or reduced to linear bracts.

Involucres

3–5 × 8–11 mm.

5–7 × 10–13 mm.

Ray florets

15–30, lavender to purple;

rays 3–8 × 0.7–1.3 mm.

25–40, white to lavender to purple;

rays 6–9 × 0.5–1.5 mm.

Disc florets

corollas 2.5–3.5 mm.

2–3 mm.

Phyllaries

in 3–4 unequal series;

surfaces sparsely strigose, eglandular.

in 2 series; purplish to green, with yellow-orange medial stripe;

surfaces remotely hirsute to basally villous.

Fruits

1–2 mm, nearly glabrous to sparsely strigose;

inner pappi of numerous barbellate bristles.

2–3 mm, sparsely strigose;

inner pappi of numerous barbellate bristles.

Heads

1, radiate.

1, radiate.

2n

=27.

=18.

Erigeron elegantulus

Erigeron vagus

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

Rocky areas, sagebrush, coniferous forests. Flowering Jun–Aug. 700–2500 m. BR, BW, Casc, Owy. CA. Native.

Rocky areas, slopes. Flowering Jun–Aug. 1500–3100 m. BW. CA, NV; southeast to CO. Native.

Source Flora of Oregon, volume 2, page 256
James Riser, Stephen Meyers
Flora of Oregon, volume 2, page 262
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. 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. 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
Web links