Difference between revisions of "Drymocallis rhomboidea"
Monogr. N. Amer. Potentilleae, 203. 1898.
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|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Potentilla rhomboidea | |name=Potentilla rhomboidea | ||
|authority=Rydberg | |authority=Rydberg | ||
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|publication_title=Bull. Torrey Bot. Club | |publication_title=Bull. Torrey Bot. Club | ||
|publication_place=23: 248. 1896 | |publication_place=23: 248. 1896 | ||
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|name=Drymocallis glandulosa subsp. globosa | |name=Drymocallis glandulosa subsp. globosa | ||
|authority=(D. D. Keck) Soják | |authority=(D. D. Keck) Soják | ||
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}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=P. glandulosa subsp. globosa | |name=P. glandulosa subsp. globosa | ||
|authority=D. D. Keck | |authority=D. D. Keck | ||
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}} | }} | ||
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Drymocallis;Drymocallis rhomboidea | |hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Drymocallis;Drymocallis rhomboidea | ||
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name=Drymocallis rhomboidea | name=Drymocallis rhomboidea | ||
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|authority=(Rydberg) Rydberg | |authority=(Rydberg) Rydberg | ||
|rank=species | |rank=species | ||
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|publication title=Monogr. N. Amer. Potentilleae, | |publication title=Monogr. N. Amer. Potentilleae, | ||
|publication year=1898 | |publication year=1898 | ||
| − | |special status=Endemic; | + | |special status=Endemic;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_477.xml |
|subfamily=Rosaceae subfam. Rosoideae | |subfamily=Rosaceae subfam. Rosoideae | ||
|tribe=Rosaceae tribe Potentilleae | |tribe=Rosaceae tribe Potentilleae | ||
Latest revision as of 22:57, 5 November 2020
Caudex branches short. Stems ± tufted, 1.7–4.7 dm; base 1–3 mm diam., usually not septate-glandular. Leaves moderately to densely hairy; basal 5–12 cm, leaflet pairs 3; terminal leaflet obovate-elliptic, 1–2.5(–3) × 1–2(–2.5) cm, teeth single or double, 6–10 per side, apex obtuse to rounded; cauline 0–2, developed or reduced, leaflet pairs 2–3. Inflorescences 5–35-flowered, ± leafy, usually ± open, 1/3–2/3 of stem, wide, branch angles 15–60°. Pedicels 1–5 (proximal to 15) mm, predominantly short-hairy, usually not or sparsely, sometimes moderately, septate-glandular. Flowers opening narrowly; epicalyx bractlets linear-oblanceolate, 2–3.5 × 1 mm; sepals ± erect, 4–6(–8) mm, apex obtuse; petals not overlapping, ± erect, cream-white, usually narrowly obovate, sometimes oblanceolate, 3–5 × 2–3 mm, usually ± shorter than sepals; filaments 1.5–3 mm, anthers 0.6–1 mm; styles slender, 1.5–2.5 mm. Achenes light reddish brown, 1–1.2 mm. 2n = 14.
Phenology: Flowering Jun–Jul(–Aug).
Habitat: Dry slopes and outcrops in open forests
Elevation: 1200–2500 m
Discussion
Drymocallis rhomboidea is centered in the Siskiyou Mountains. It differs from D. campanulata in its smaller, cream-white petals and globular flowers; in addition, the vestiture is usually predominantly short-hairy, except in scattered California populations. Plants from Mount Ashland, the type locality, tend to have more congested, leafier inflorescences than plants found elsewhere in the range.
Selected References
None.