View source for Petrophytum hendersonii

{{Treatment/ID
|accepted_name=Petrophytum hendersonii
|accepted_authority=(Canby) Rydberg in N. L. Britton et al.
|publications={{Treatment/Publication
|title=in N. L. Britton et al., N. Amer. Fl.
|place=22: 253. 1908
|year=1908
}}
|common_names=Olympic mountain rockmat
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Synonym
|name=Eriogynia hendersonii
|authority=Canby
}}
|synonyms={{Treatment/ID/Synonym
|name=Luetkea hendersonii
|authority=(Canby) Greene
}} {{Treatment/ID/Synonym
|name=Spiraea hendersonii
|authority=(Canby) Piper
}}
|hierarchy=Rosaceae;Rosaceae subfam. Amygdaloideae;Rosaceae tribe Spiraeeae;Petrophytum;Petrophytum hendersonii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Amygdaloideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Spiraeeae]]</div><div class="higher-taxon"><small>genus</small>[[Petrophytum]]</div><div class="higher-taxon"><small>species</small>[[Petrophytum hendersonii]]</div></div>
|volume=Volume 9
|mention_page=page 411, 413
|treatment_page=page 412
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 2–9 dm diam. <b>Stems</b> decumbent to ascending, 1–10 cm, internodes 0.5–1.5 cm. <b>Leaves</b>: 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. <b>Panicles</b> densely racemose, 2–5 × 1–2 cm, sparsely sericeous; bracts linear, 2–4(–6) mm, pilose. <b>Pedicels</b> 2–5 mm; bracteoles 1, rarely extending to base of sepals. <b>Flowers</b> 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. <b>Follicles</b> 1.5–2 mm. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Sep.
|habitat=Rock outcrops, cliffs, talus slopes
|elevation=1000–2300 m
|distribution=Wash.
|discussion=<p><i>Petrophytum hendersonii</i> is known only from the Olympic Mountains of northwestern Washington.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Petrophytum hendersonii
|author=
|authority=(Canby) Rydberg in N. L. Britton et al.
|rank=species
|parent rank=genus
|synonyms=Luetkea hendersonii;Spiraea hendersonii
|basionyms=Eriogynia hendersonii
|family=Rosaceae
|phenology=Flowering Jul–Sep.
|habitat=Rock outcrops, cliffs, talus slopes
|elevation=1000–2300 m
|distribution=Wash.
|reference=None
|publication title=in N. L. Britton et al., N. Amer. Fl.
|publication year=1908
|special status=Endemic
|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
|tribe=Rosaceae tribe Spiraeeae
|genus=Petrophytum
|species=Petrophytum hendersonii
}}<!--

-->[[Category:Treatment]][[Category:Petrophytum]]