Difference between revisions of "Filipendula occidentalis"
Fl. N.W. Amer., 185. 1898.
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|label=Endemic | |label=Endemic | ||
}} | }} | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Spiraea occidentalis | |name=Spiraea occidentalis | ||
|authority=S. Watson | |authority=S. Watson | ||
| + | |rank=species | ||
| + | |publication_title=Proc. Amer. Acad. Arts | ||
| + | |publication_place=18: 192. 1883 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=S. camtschatica var. occidentalis | |name=S. camtschatica var. occidentalis | ||
|authority=(S. Watson) Wenzig | |authority=(S. Watson) Wenzig | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Ulmarieae;Filipendula;Filipendula occidentalis | |hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Ulmarieae;Filipendula;Filipendula occidentalis | ||
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name=Filipendula occidentalis | name=Filipendula occidentalis | ||
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|authority=(S. Watson) Howell | |authority=(S. Watson) Howell | ||
|rank=species | |rank=species | ||
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|publication year=1898 | |publication year=1898 | ||
|special status=Conservation concern;Endemic | |special status=Conservation concern;Endemic | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_30.xml |
|subfamily=Rosaceae subfam. Rosoideae | |subfamily=Rosaceae subfam. Rosoideae | ||
|tribe=Rosaceae tribe Ulmarieae | |tribe=Rosaceae tribe Ulmarieae | ||
Latest revision as of 22:55, 5 November 2020
Plants weakly rhizomatous, 7–15 dm. Rhizomes horizontal, stout, 10–15 mm wide, internodes 1–4 cm; root tubers absent. Stems finely puberulent distally. Leaves: basal 1 or 2, deciduous by flowering; stipules round, 1–1.5 cm diam., base not auriculate; lateral leaflets in 1–3 pairs or lacking, remote, ovate to elliptic, to 1 cm, margins serrate; terminal leaflets round, 6–16 cm diam., palmately 5–7-lobed, lobes ovate to oblong-lanceolate, margins doubly serrate, apex acute to acuminate, surfaces short-appressed hairy at least on veins. Inflorescences 100+-flowered; branches and pedicels densely short-appressed hairy, hairs straight. Flowers: hypanthium nearly flat, saucer-shaped; sepals (4–)5(–6), green, narrowly triangular, 4–6 mm, margins often serrate, usually with midrib, abaxially puberulent, adaxially glabrous; petals (4–)5(–6), white, in buds sometimes marginally pink, oblanceolate, 10–15 mm, not clawed, base broad, margins entire; stamens white, about equal to petals. Achenes 7–12, flattened, lanceolate, straight, 6–7.5 mm, sutures densely ciliate, faces sparsely hairy; stipes 1–2 mm; styles 1.5–2 mm.
Phenology: Flowering summer (Jun–Aug).
Habitat: Wet, mossy rock along forest streams, at or slightly above water level, wet rock on mountain slopes, riverbanks, rocky summits
Elevation: 30–1000 m
Discussion
Of conservation concern.
Filipendula occidentalis is known only from the valleys of several small rivers in the coast ranges of northwestern Oregon and southwestern Washington. The species is threatened by logging and associated forest-management activities. The species is most probably related to F. camtschatica (Pallas) Maximowicz from the Pacific coast of Asia.
Selected References
None.