View source for Ceanothus griseus

{{Treatment/ID
|accepted_name=Ceanothus griseus
|accepted_authority=(Trelease) McMinn in M. van Rensselaer and H. McMinn
|publications={{Treatment/Publication
|title=Ceanothus,
|place=210. 1942
|year=1942
}}
|common_names=Carmel ceanothus
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Ceanothus thyrsiflorus var. griseus
|authority=Trelease in A. Gray et al.
|publication_title=Syn. Fl. N. Amer.
|publication_place=1(1,2): 415. 1897
}}
|synonyms={{Treatment/ID/Synonym
|name=C. griseus var. horizontalis
|authority=McMinn
}}
|hierarchy=Rhamnaceae;Ceanothus;Ceanothus subg. Ceanothus;Ceanothus griseus
|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. Ceanothus]]</div><div class="higher-taxon"><small>species</small>[[Ceanothus griseus]]</div></div>
|volume=Volume 12
|mention_page=page 81, 90, 92
|treatment_page=page 91
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> sometimes arborescent, evergreen, 0.5–4 m. <b>Stems</b> erect, ascending to arcuate, rarely prostrate, not rooting at nodes; branchlets green, not thorn-tipped, angled in cross section, flexible, sparsely puberulent or glabrous. <b>Leaves</b>: petiole 5–10 mm; blade flat to cupped, ovate to suborbiculate, 10–45 × 10–30 mm, base obtuse to rounded, margins denticulate, ± revolute, teeth 21–45, apex obtuse to rounded, abaxial surface pale green, puberulent to densely villosulous, veins prominently raised, puberulent to villosulous, adaxial surface dark green, glabrate; 3-veined from base. <b>Inflorescences</b> axillary, paniclelike, 2–7 cm. <b>Flowers</b>: sepals, petals, and nectary blue. <b>Capsules</b> 3–4 mm wide, weakly lobed at apex; valves smooth, viscid, not crested.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Jun.
|habitat=Sandy or rocky flats and slopes, maritime chaparral, open sites in pine and cypress forests.
|elevation=10–200 m.
|distribution=Calif.
|discussion=<p><i>Ceanothus griseus</i> is distributed along the coast from Mendocino County south to Santa Barbara County. Plants with incompletely revolute leaf margins and abaxial surfaces intermediate or similar to those of <i>C. thyrsiflorus</i> are encountered frequently. Whether this pattern is a result of primary or secondary intergradation is not known. Prostrate plants with wide elliptic leaves have been called <i>C. griseus</i> var. horizontalis McMinn; they retain their stature under cultivation. Putative hybrids with <i>C. dentatus</i> have been named C. ×lobbianus Hooker (M. Van Rensselaer and H. McMinn 1942). <i>Ceanothus</i> ×veitchianus Hooker is a rare intersubgeneric hybrid between <i>C. griseus</i> and <i>C. rigidus</i>, first collected by William Lobb near Monterey in 1853, that is cultivated in Great Britain as an ornamental.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ceanothus griseus
|author=
|authority=(Trelease) McMinn in M. van Rensselaer and H. McMinn
|rank=species
|parent rank=subgenus
|synonyms=C. griseus var. horizontalis
|basionyms=Ceanothus thyrsiflorus var. griseus
|family=Rhamnaceae
|phenology=Flowering Mar–Jun.
|habitat=Sandy or rocky flats and slopes, maritime chaparral, open sites in pine and cypress forests.
|elevation=10–200 m.
|distribution=Calif.
|reference=None
|publication title=Ceanothus,
|publication year=1942
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_569.xml
|genus=Ceanothus
|subgenus=Ceanothus subg. Ceanothus
|species=Ceanothus griseus
}}<!--

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