View source for Ceanothus roderickii

{{Treatment/ID
|accepted_name=Ceanothus roderickii
|accepted_authority=W. Knight
|publications={{Treatment/Publication
|title=Four Seasons
|place=2(4): 23. 1968
|year=1968
}}
|common_names=Pine Hill ceanothus
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms=
|hierarchy=Rhamnaceae;Ceanothus;Ceanothus subg. Cerastes;Ceanothus roderickii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rhamnaceae]]</div><div class="higher-taxon"><small>genus</small>[[Ceanothus]]</div><div class="higher-taxon"><small>subgenus</small>[[Ceanothus subg. Cerastes]]</div><div class="higher-taxon"><small>species</small>[[Ceanothus roderickii]]</div></div>
|volume=Volume 12
|mention_page=page 96
|treatment_page=page 102
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism shape;whole_organism growth form"><b>Shrubs,</b> 0.1–0.5 m, moundlike.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem orientation;stem course or shape;stem architecture"><b>Stems </b>prostrate or spreading, arcuate, often rooting at distal nodes;</span> <span class="statement" id="st-d0_s2" data-properties="branchlet coloration;branchlet texture;branchlet pubescence;branchlet pubescence">branchlets brown to grayish brown, rigid, puberulent, glabrescent.</span> <span class="statement" id="st-d0_s3" data-properties="leaf architecture or arrangement;axillary short-shoot orientation"><b>Leaves </b>both fascicled and not on same plant, axillary short-shoots erect;</span> <span class="statement" id="st-d0_s4" data-properties="petiole some measurement">petiole 1–2 mm;</span> <span class="statement" id="st-d0_s5" data-properties="blade architecture or shape;blade shape;blade length;blade width;base shape;margin shape;margin shape;margin shape;tooth quantity;apex shape;abaxial surface coloration;abaxial surface pubescence;abaxial surface pubescence;adaxial surface coloration;adaxial surface pubescence">blade folded lengthwise abaxially, elliptic to oblanceolate, 4–12 × 2–6 mm, base obtuse to cuneate, margins not revolute, entire or denticulate near apex, teeth 3–5, apex obtuse, abaxial surface pale green, glabrate or sparsely strigillose between the veins, adaxial surface green, glabrate.</span> <span class="statement" id="st-d0_s6" data-properties="inflorescence position;inflorescence position;inflorescence some measurement"><b>Inflorescences </b>terminal or axillary, 0.6–1.4 cm.</span> <span class="statement" id="st-d0_s7" data-properties="sepal coloration;petal coloration"><b>Flowers:</b> sepals and petals white to pale blue;</span> <span class="statement" id="st-d0_s8" data-properties="nectary coloration">nectary blue.</span> <span class="statement" id="st-d0_s9" data-properties="capsule width;capsule shape"><b>Capsules </b>4–5 mm wide, usually not, sometimes weakly lobed;</span> <span class="statement" id="st-d0_s10" data-properties="valve relief;valve relief;valve shape;horn presence;horn quantity;horn presence">valves smooth or slightly rugulose, sometimes ridged, horns absent or weakly developed bulges, intermediate ridges absent.</span><!--

-->{{Treatment/Body
|phenology=Flowering Apr–Jun.
|habitat=Rocky soils derived from gabbro, chaparral, pine woodlands.
|elevation=200–600 m.
|distribution=Calif.
|discussion=<p>Ceanothus roderickii is restricted to a few localities in the foothills of the Sierra Nevada (El Dorado County). A close relationship to C. cuneatus var. cuneatus is supported by molecular data (T. M. Hardig et al. 2000b). The ability to root at remote, distal nodes was shown to enhance density and recovery, long after episodic establishment from seeds following fires (R. S. Boyd 2007).</p><!--
--><p>Ceanothus roderickii is in the Center for Plant Conservation's National Collection of Endangered Plants.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ceanothus roderickii
|authority=W. Knight
|rank=species
|parent rank=subgenus
|synonyms=
|basionyms=
|family=Rhamnaceae
|phenology=Flowering Apr–Jun.
|habitat=Rocky soils derived from gabbro, chaparral, pine woodlands.
|elevation=200–600 m.
|distribution=Calif.
|reference=None
|publication title=Four Seasons
|publication year=1968
|special status=Endemic;Conservation concern
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V12/V12_1055.xml
|genus=Ceanothus
|subgenus=Ceanothus subg. Cerastes
|species=Ceanothus roderickii
|abaxial surface coloration=pale green
|abaxial surface pubescence=strigillose;glabrate
|adaxial surface coloration=green
|adaxial surface pubescence=glabrate
|apex shape=obtuse
|axillary short-shoot orientation=erect
|base shape=obtuse;cuneate
|blade architecture or shape=folded
|blade length=4mm;12mm
|blade shape=elliptic;oblanceolate
|blade width=2mm;6mm
|branchlet coloration=brown;grayish brown
|branchlet pubescence=glabrescent;puberulent
|branchlet texture=rigid
|capsule shape=lobed
|capsule width=4mm;5mm
|horn presence=absent;absent
|horn quantity=weakly developed bulges , intermediate ridges
|inflorescence position=axillary;terminal
|inflorescence some measurement=0.6cm;1.4cm
|leaf architecture or arrangement=fascicled
|margin shape=denticulate;entire;not revolute
|nectary coloration=blue
|petal coloration=white;pale blue
|petiole some measurement=1mm;2mm
|sepal coloration=white;pale blue
|stem architecture=rooting
|stem course or shape=arcuate
|stem orientation=spreading;prostrate
|tooth quantity=3;5
|valve relief=rugulose;smooth
|valve shape=ridged
|whole_organism growth form=shrub
|whole_organism shape=moundlike
|whole_organism some measurement=0.1m;0.5m
}}<!--

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