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Oregon sunshine, woolly sunflower

eastern woolly sunflower

Habit Herbs perennial, 1–6 dm.
Stems

not woody.

Leaves

opposite;

proximal often alternate, 1–8 cm;

surfaces woolly-pubescent, or adaxially glabrate and green, sessile or petiolate.

upper alternate;

margins revolute.

Involucres

3–11 mm.

10–15 mm in diameter.

Ray florets

(0)5–15;

corollas 5–20 mm, yellow.

(8)11–13;

rays 10–20 mm.

Disc florets

20–200.

Phyllaries

in 2–3 equal series; lance-linear, woolly tomentose.

Fruits

2–5 mm, brown, pappi of 6–12 erose or lacerate scales, 0.3–2 mm.

3.5–5 mm.

Heads

solitary or few in open panicle-like arrays;

peduncles 3–30 cm, woolly-tomentose.

2n

=16, 32.

Eriophyllum lanatum

Eriophyllum lanatum var. lanatum

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

10 varieties; 6 varieties treated in Flora.

Coniferous forests, sagebrush scrub, grasslands, riverbanks, subalpine slopes. Flowering May–Aug. 1000–2500 m. BW, Lava. ID, WA; northeast to MT. Native.

This variety intergrades with variety integrifolium. Reports of variety lanatum from west of the Cascades are now referred to variety leucophyllum.

Source Flora of Oregon, volume 2, page 263
Kenton Chambers
Flora of Oregon, volume 2, page 264
Kenton Chambers
Sibling taxa
E. staechadifolium
E. lanatum var. achilleoides, E. lanatum var. grandiflorum, E. lanatum var. integrifolium, E. lanatum var. lanceolatum, E. lanatum var. leucophyllum
Subordinate taxa
E. lanatum var. achilleoides, E. lanatum var. grandiflorum, E. lanatum var. integrifolium, E. lanatum var. lanatum, E. lanatum var. lanceolatum, E. lanatum var. leucophyllum
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