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clustered goldenweed

tacky goldenweed

Habit Plants 20–80 cm. Plants 10–60 cm.
Stems

erect or ascending, glabrous or lightly tomentose.

erect or ascending, usually tomentose, lightly to densely stipitate glandular.

Basal leaves

broadly to narrowly lanceolate, oblong, or elliptic, 7–25 cm × 5–35 mm;

margins entire or denticulate;

surfaces glabrous.

lanceolate to oblong or elliptic, 3–20 cm × 5–35 mm;

margins denticulate to sharply serrate-dentate;

surfaces villous to tomentose, stipitate-glandular, sometimes ciliate.

Cauline leaves

reduced upwards, sessile or petiolate.

bases broadly attenuate to truncate, sessile.

Involucres

5–15 mm.

7–13 mm.

Ray florets

7–35, conspicuous;

corollas 5–12 mm.

10–30, conspicuous;

corollas 6–12 mm.

Disc florets

20–60;

corollas 5–8 mm.

30–60;

corollas 5–7 mm.

Phyllaries

in 3–6 series;

margins entire, deltate to linear;

surfaces glabrous or lightly tomentose.

in 3–5 series, narrowly lanceolate to linear;

margins entire;

surfaces tomentose to scabrous and gland-dotted.

Fruits

2–5 mm, brown, puberulent;

pappus bristles 6–8 mm.

3–4.5 mm, brown, puberulent;

pappus bristles 5–7 mm.

Heads

3–15 in raceme-like arrays, radiate;

peduncles 0–25 mm.

3–7 in raceme-like arrays, radiate;

peduncles 5–50 mm.

2n

=12, 24.

Pyrrocoma racemosa

Pyrrocoma hirta

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

The three varieties of Pyrrocoma racemosa in Oregon are geo­graphically separate but can be difficult to tell apart morphologically due to intergradation of various key morphological characteristics.

Conifer forests, shrublands, grasslands, roadsides. Flowering Jun–Aug. 400–1900 m. BR, BW, ECas. CA, ID, WA; southeast to UT. Native.

Source Flora of Oregon, volume 2, page 331
Kenton Chambers
Flora of Oregon, volume 2, page 330
Kenton Chambers
Sibling taxa
P. carthamoides, P. hirta, P. howellii, P. lanceolata, P. radiata, P. scaberula, P. uniflora
P. carthamoides, P. howellii, P. lanceolata, P. racemosa, P. radiata, P. scaberula, P. uniflora
Subordinate taxa
P. racemosa var. congesta, P. racemosa var. paniculata, P. racemosa var. racemosa
Synonyms Haplopappus racemosus Haplopappus hirtus, Haplopappus hirtus ssp. hirtus, Haplopappus hirtus ssp. lanulosus, Haplopappus hirtus ssp. sonchifolius, Haplopappus hirtus var. hirtus, Haplopappus hirtus var. lanulosus, Haplopappus hirtus var. sonchifolius, Haplopappus subviscosus, Pyrrocoma hirta var. hirta, Pyrrocoma hirta var. lanulosa, Pyrrocoma hirta var. sonchifolia, Pyrrocoma lanceolata var. subviscosa
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