View source for Douglasia ochotensis

{{Treatment/ID
|accepted_name=Douglasia ochotensis
|accepted_authority=(Roemer & Schultes) Hultén
|publications={{Treatment/Publication
|title=Ark. Bot., n. s.
|place=7: 103. 1968 ,
}}
|common_names=Alaska dwarf primrose
|basionyms={{Treatment/ID/Basionym
|name=Androsace ochotensis
|authority=Roemer & Schultes
|rank=species
|publication_title=in J. J. Roemer et al., Syst. Veg.
|publication_place=4: 786. 1819
}}
|synonyms={{Treatment/ID/Synonym
|name=Androsace arctica
|authority=Chamisso & Schlechtendal
|rank=species
}} {{Treatment/ID/Synonym
|name=Androsace tschuktschorum
|authority=R. Knuth
|rank=species
}} {{Treatment/ID/Synonym
|name=Primula arctica
|authority=(Chamisso & Schlechtendal) Kuntze
|rank=species
}}
|hierarchy=Primulaceae;Douglasia;Douglasia ochotensis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Primulaceae]]</div><div class="higher-taxon"><small>genus</small>[[Douglasia]]</div><div class="higher-taxon"><small>species</small>[[Douglasia ochotensis]]</div></div>
|volume=Volume 8
|mention_page=page 264, 266, 297
|treatment_page=page 267
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism growth form;whole_organism growth form;whole_organism growth form;mat growth form;caudex architecture"><b>Plants </b>loosely cespitose cushions or mats with branched caudex.</span> <span class="statement" id="st-d0_s1" data-properties="stem growth form or orientation;leaf condition;leaf arrangement;leaf coloration;terminal leaf-rosette coloration;terminal leaf-rosette condition;terminal leaf-rosette arrangement;terminal leaf-rosette coloration"><b>Stems </b>prostrate, densely covered with marcescent, imbricate, reddish-brown leaves proximally and terminal, green leaf-rosettes.</span> <span class="statement" id="st-d0_s2" data-properties="leaf orientation;leaf width"><b>Leaves </b>prominently recurved, thin;</span> <span class="statement" id="st-d0_s3" data-properties="blade shape;blade length;blade width;margin architecture or shape;apex shape;apex pubescence;hair architecture;surface pubescence;hair architecture">blade linear to lanceolate, 3–10 × 1–1.5 mm, margins entire, apex obtuse, hairy, hairs simple, surfaces glabrate to hairy, hairs simple.</span> <span class="statement" id="st-d0_s4" data-properties="scape some measurement;scape length;scape pubescence;scape pubescence;scape pubescence;hair architecture;hair shape"><b>Scapes </b>5–10 mm, elongating little in fruit, glabrous or minutely glandular and hairy, hairs simple and forked.</span> <span class="statement" id="st-d0_s5" data-properties="inflorescence architecture;inflorescence architecture;inflorescence architecture;inflorescence architecture"><b>Inflorescences </b>1-flowered, ebracteate or, sometimes, bracteate;</span> <span class="statement" id="st-d0_s6" data-properties="bract quantity;bract shape;bract length;bract width;bract pubescence">bract 1, linear-lanceolate, 0.5–1 × 0.5 mm, glabrous.</span> <span class="statement" id="st-d0_s7" data-properties="pedicel presence"><b>Pedicels </b>absent.</span> <span class="statement" id="st-d0_s8" data-properties="calyx length;calyx width;calyx pubescence"><b>Flowers:</b> calyx 3–7 × 3–5 mm, glabrous;</span> <span class="statement" id="st-d0_s9" data-properties="corolla coloration;limb diameter;lobe length;lobe width">corolla pink, limb 4–12 mm diam., lobes 1–3 × 1–2 mm, margins entire.</span> <span class="statement" id="st-d0_s10" data-properties="margin architecture or shape;2n chromosome quantity;2n chromosome quantity">2n = 38, 40.</span><!--

-->{{Treatment/Body
|phenology=Flowering early summer.
|habitat=Rocky places on tundra, scree slopes
|elevation=0-700 m
|distribution=N.W.T.;Yukon;Alaska;e Asia (Russian Far East)
|discussion=<p>Douglasia ochotensis is the only North American member of the genus to occur also in Asia; its range extends from the Sea of Okhotsk throughout the Bering Strait region, and across the Brooks Range to the Mackenzie River. It varies considerably with respect to flower size and degree of looseness in the growth habit; these characters are strongly affected by exposure, substrate stability, and moisture availability. Douglasia ochotensis can be easily distinguished from all other members of the genus by its prominent, imbricate, recurving, reddish brown, marcescent leaves.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Douglasia ochotensis
|authority=(Roemer & Schultes) Hultén
|rank=species
|parent rank=genus
|synonyms=Androsace arctica;Androsace tschuktschorum;Primula arctica
|basionyms=Androsace ochotensis
|family=Primulaceae
|phenology=Flowering early summer.
|habitat=Rocky places on tundra, scree slopes
|elevation=0-700 m
|distribution=N.W.T.;Yukon;Alaska;e Asia (Russian Far East)
|reference=None
|publication title=Ark. Bot., n. s.
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V8/V8_547.xml
|genus=Douglasia
|species=Douglasia ochotensis
|2n chromosome quantity=40;38
|apex pubescence=hairy
|apex shape=obtuse
|blade length=3mm;10mm
|blade shape=linear;lanceolate
|blade width=1mm;1.5mm
|bract length=0.5mm;1mm
|bract pubescence=glabrous
|bract quantity=1
|bract shape=linear-lanceolate
|bract width=0.5
|calyx length=3mm;7mm
|calyx pubescence=glabrous
|calyx width=3mm;5mm
|caudex architecture=branched
|corolla coloration=pink
|hair architecture=simple;simple;simple
|hair shape=forked
|inflorescence architecture=bracteate;,;ebracteate;1-flowered
|leaf arrangement=imbricate
|leaf coloration=reddish-brown
|leaf condition=marcescent
|leaf orientation=recurved
|leaf width=thin
|limb diameter=4mm;12mm
|lobe length=1mm;3mm
|lobe width=1mm;2mm
|margin architecture or shape=entire;entire
|mat growth form=cespitose
|pedicel presence=absent
|scape length=elongating
|scape pubescence=hairy;glandular;glabrous
|scape some measurement=5mm;10mm
|stem growth form or orientation=prostrate
|surface pubescence=glabrate;hairy
|terminal leaf-rosette arrangement=imbricate
|terminal leaf-rosette coloration=reddish-brown;green
|terminal leaf-rosette condition=marcescent
|whole_organism growth form=cushion;cespitose;plant
}}<!--

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