View source for Ceanothus crassifolius

{{Treatment/ID
|accepted_name=Ceanothus crassifolius
|accepted_authority=Torrey in War Department [U.S.]
|publications={{Treatment/Publication
|title=Pacif. Railr. Rep.
|place=4(5): 75. 1857
|year=1857
}}
|common_names=Hoary-leaf ceanothus
|basionyms=
|synonyms=
|hierarchy=Rhamnaceae;Ceanothus;Ceanothus subg. Cerastes;Ceanothus crassifolius
|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 crassifolius]]</div></div>
|volume=Volume 12
|mention_page=page 96, 97, 107, 108
|treatment_page=page 98
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form"><b>Shrubs,</b> 1.5–4 m.</span> <span class="statement" id="st-d0_s1" data-properties="stem orientation;stem architecture"><b>Stems </b>erect, not rooting at nodes;</span> <span class="statement" id="st-d0_s2" data-properties="branchlet coloration;branchlet fragility;branchlet texture;branchlet pubescence;hair course">branchlets grayish brown to brown, ± flexible to rigid, tomentulose, hairs straight.</span> <span class="statement" id="st-d0_s3" data-properties="leaf architecture or arrangement"><b>Leaves </b>not fascicled;</span> <span class="statement" id="st-d0_s4" data-properties="petiole some measurement">petiole 2–6 mm;</span> <span class="statement" id="st-d0_s5" data-properties="blade prominence or shape;blade arrangement or shape;blade arrangement or shape;blade atypical length;blade length;blade atypical width;blade width;base shape;margin width;margin shape;margin length;tooth quantity;apex shape;abaxial surface coloration;abaxial surface pubescence;adaxial surface coloration;adaxial surface pubescence;hair course;hair pubescence">blade flat to ± cupped, elliptic to widely elliptic, 12–25 (–30) × 8–15 (–23) mm, base obtuse to rounded, margins thick or revolute, entire to denticulate most of length, teeth 8–19, apex obtuse to rounded, abaxial surface pale green to white, tomentulose to glabrate, adaxial surface green, sparsely tomentulose, hairs straight, glabrescent.</span> <span class="statement" id="st-d0_s6" data-properties="inflorescence position;inflorescence position;inflorescence some measurement"><b>Inflorescences </b>axillary or terminal, 1–2 cm.</span> <span class="statement" id="st-d0_s7" data-properties="sepal coloration;petal coloration"><b>Flowers:</b> sepals and petals white;</span> <span class="statement" id="st-d0_s8" data-properties="nectary coloration">nectary blue to black.</span> <span class="statement" id="st-d0_s9" data-properties="capsule width;capsule shape"><b>Capsules </b>5–9 mm wide, sometimes weakly lobed at apex;</span> <span class="statement" id="st-d0_s10" data-properties="valve coating;valve architecture or pubescence or relief;horn position;horn prominence;horn orientation">valves viscid, smooth, horns lateral, prominent, erect, intermediate ridges absent.</span> <span class="statement" id="st-d0_s11" data-properties="ridge size;ridge presence;2n chromosome quantity">2n = 24.</span><!--

-->{{Treatment/Body
|distribution=Calif.;nw Mexico
|discussion=<p>Varieties 2 (2 in the flora).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Leaf blade abaxial surfaces densely tomentulose, veins obscured, margins denticulate and revolute.
|[[Ceanothus crassifolius var. crassifolius|Ceanothus crassifolius var. crassifolius]]
|-id=key-0-1
|1
|Leaf blade abaxial surfaces sparsely tomentulose to glabrate, veins evident, margins entire to weakly denticulate, thick to weakly revolute.
|[[Ceanothus crassifolius var. planus|Ceanothus crassifolius var. planus]]
|}
</div></div><!--

-->{{#Taxon:
name=Ceanothus crassifolius
|authority=Torrey in War Department [U.S.]
|rank=species
|parent rank=subgenus
|synonyms=
|basionyms=
|family=Rhamnaceae
|distribution=Calif.;nw Mexico
|reference=None
|publication title=Pacif. Railr. Rep.
|publication year=1857
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V12/V12_142.xml
|genus=Ceanothus
|subgenus=Ceanothus subg. Cerastes
|species=Ceanothus crassifolius
|2n chromosome quantity=24
|abaxial surface coloration=pale green;white
|abaxial surface pubescence=tomentulose;glabrate
|adaxial surface coloration=green
|adaxial surface pubescence=tomentulose
|apex shape=obtuse;rounded
|base shape=obtuse;rounded
|blade arrangement or shape=elliptic;elliptic to widely
|blade atypical length=25mm;30mm
|blade atypical width=15mm;23mm
|blade length=12mm;25mm
|blade prominence or shape=flat
|blade width=8mm;15mm
|branchlet coloration=grayish brown;brown
|branchlet fragility=pliable
|branchlet pubescence=tomentulose
|branchlet texture=rigid
|capsule shape=lobed
|capsule width=5mm;9mm
|hair course=straight;straight
|hair pubescence=glabrescent
|horn orientation=erect
|horn position=lateral
|horn prominence=prominent
|inflorescence position=terminal;axillary
|inflorescence some measurement=1cm;2cm
|leaf architecture or arrangement=not fascicled
|margin length=entire;denticulate
|margin shape=revolute
|margin width=thick
|nectary coloration=blue;black
|petal coloration=white
|petiole some measurement=2mm;6mm
|ridge presence=absent
|ridge size=intermediate
|sepal coloration=white
|stem architecture=not rooting
|stem orientation=erect
|tooth quantity=8;19
|valve architecture or pubescence or relief=smooth
|valve coating=viscid
|whole_organism growth form=shrub
|whole_organism some measurement=1.5m;4m
}}<!--

-->[[Category:Treatment]][[Category:Ceanothus subg. Cerastes]]