Difference between revisions of "Petrophytum hendersonii"
in N. L. Britton et al., N. Amer. Fl. 22: 253. 1908.
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|name=Luetkea hendersonii | |name=Luetkea hendersonii | ||
|authority=(Canby) Greene | |authority=(Canby) Greene | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Spiraea hendersonii | |name=Spiraea hendersonii | ||
|authority=(Canby) Piper | |authority=(Canby) Piper | ||
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|elevation=1000–2300 m | |elevation=1000–2300 m | ||
|distribution=Wash. | |distribution=Wash. | ||
| − | |discussion=<p>Petrophytum hendersonii is known only from the Olympic Mountains of northwestern Washington.</p> | + | |discussion=<p><i>Petrophytum hendersonii</i> is known only from the Olympic Mountains of northwestern Washington.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1908 | |publication year=1908 | ||
|special status=Endemic | |special status=Endemic | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V9/V9_695.xml |
|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Spiraeeae | |tribe=Rosaceae tribe Spiraeeae | ||
Revision as of 18:18, 18 September 2019
Shrubs, 2–9 dm diam. Stems decumbent to ascending, 1–10 cm, internodes 0.5–1.5 cm. Leaves: blade narrowly obtrullate, sometimes oblanceolate to spatulate-obovate, 1–2(–3) × 0.2–0.6 cm, palmately 3-veined, venation visible through hairs, apex acute, abaxial surface sparsely strigose, pilose to pilose-sericeous, sometimes glabrate, sparsely strigose along veins. Panicles densely racemose, 2–5 × 1–2 cm, sparsely sericeous; bracts linear, 2–4(–6) mm, pilose. Pedicels 2–5 mm; bracteoles 1, rarely extending to base of sepals. Flowers 3–5 mm diam.; hypanthium 0.5–1 mm, sparsely pilose; sepals reflexed, oblong to obtuse, 1–1.5 mm, margins ciliate, abaxial surface sparsely pilose; petals oval, oblong, or obovate, 2–2.5 mm, apex obtuse, sometimes 2-lobate; stamens 25–40, lengths 1–1.3 times petals (2 times sepals); carpels (4–)5(–6), abaxially connate. Follicles 1.5–2 mm. 2n = 18.
Phenology: Flowering Jul–Sep.
Habitat: Rock outcrops, cliffs, talus slopes
Elevation: 1000–2300 m
Discussion
Petrophytum hendersonii is known only from the Olympic Mountains of northwestern Washington.
Selected References
None.