View source for Dryas hookeriana

{{Treatment/ID
|accepted_name=Dryas hookeriana
|accepted_authority=Juzepczuk
|publications={{Treatment/Publication
|title=Izv. Glavn. Bot. Sada S.S.S.R.
|place=28: 325. 1929
|year=1929
}}
|common_names=Hooker’s mountain-avens
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Dryas octopetala var. angustifolia
|authority=C. L. Hitchcock
}} {{Treatment/ID/Synonym
|name=D. octopetala subsp. hookeriana
|authority=(Juzepczuk) Hultén
}} {{Treatment/ID/Synonym
|name=D. octopetala var. hookeriana
|authority=(Juzepczuk) Breitung
}}
|hierarchy=Rosaceae;Rosaceae subfam. Dryadoideae;Rosaceae tribe Dryadeae;Dryas;Dryas hookeriana
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Dryadoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Dryadeae]]</div><div class="higher-taxon"><small>genus</small>[[Dryas]]</div><div class="higher-taxon"><small>species</small>[[Dryas hookeriana]]</div></div>
|volume=Volume 9
|mention_page=page 328
|treatment_page=page 329
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>1.5–9 cm. <b>Leaf</b> blades usually oblong-elliptic to lanceolate, sometimes ovate, 4–16(–25) × 1–6(–10) mm, base usually truncate or cordate, sometimes cuneate, margins strongly revolute to flat, coarsely dentate or serrate, sinuses 5–25(–30)% to midvein, apex acute to obtuse, surfaces smooth to slightly plicate, only midvein ± obscured adaxially within medial fold, abaxial tomentose to woolly (obscuring lateral veins), adaxial usually glabrous, sometimes sparsely hairy proximally on midvein, feathery hairs usually absent, rarely 1+ on midveins abaxially, midveins and petioles abaxially stipitate-glandular. <b>Peduncles</b> 10–30 mm. <b>Flowers</b> erect at flowering; sepals lanceolate to narrowly elliptic, 4–10 × 0.6–1.5 mm; petals 8, spreading, usually white or cream, sometimes yellow, 9–14 × 5–11 mm; filaments glabrous. <b>Achenes</b> 2.5–3 mm; styles 11–25 mm. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Alpine meadows, dry rocky slopes and ridges, alpine tundra
|elevation=1500–3900 m
|distribution=Alta.;B.C.;N.W.T.;Alaska;Colo.;Idaho;Mont.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>In some states and provinces, the distribution of <i>Dryas hookeriana</i> is restricted to northwestern and central Colorado, southeastern and northernmost Idaho, western and central Montana, northeastern Utah (Uinta and Wasatch mountains), eastern Oregon and Washington, southwestern and central Wyoming, and western Northwest Territories.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Dryas hookeriana
|author=
|authority=Juzepczuk
|rank=species
|parent rank=genus
|synonyms=Dryas octopetala var. angustifolia;D. octopetala subsp. hookeriana;D. octopetala var. hookeriana
|basionyms=
|family=Rosaceae
|phenology=Flowering Jun–Aug.
|habitat=Alpine meadows, dry rocky slopes and ridges, alpine tundra
|elevation=1500–3900 m
|distribution=Alta.;B.C.;N.W.T.;Alaska;Colo.;Idaho;Mont.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=Izv. Glavn. Bot. Sada S.S.S.R.
|publication year=1929
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V9/V9_538.xml
|subfamily=Rosaceae subfam. Dryadoideae
|tribe=Rosaceae tribe Dryadeae
|genus=Dryas
|species=Dryas hookeriana
}}<!--

-->[[Category:Treatment]][[Category:Dryas]]