Pyrrocoma racemosa |
Pyrrocoma hirta |
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clustered goldenweed |
tacky goldenweed |
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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. |
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Pyrrocoma racemosa |
Pyrrocoma hirta |
|
Distribution | ||
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 | ||
Subordinate taxa | ||
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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