View source for Ceanothus pauciflorus

{{Treatment/ID
|accepted_name=Ceanothus pauciflorus
|accepted_authority=de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|publications={{Treatment/Publication
|title=Prodr.
|place=2: 33. 1825
|year=1825
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Ceanothus greggii
|authority=A. Gray
}} {{Treatment/ID/Synonym
|name=C. greggii var. franklinii
|authority=S. L. Welsh
}} {{Treatment/ID/Synonym
|name=C. vestitus
|authority=Greene
}}
|hierarchy=Rhamnaceae;Ceanothus;Ceanothus subg. Cerastes;Ceanothus pauciflorus
|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 pauciflorus]]</div></div>
|volume=Volume 12
|mention_page=page 94, 96, 99
|treatment_page=page 107
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs,</b> 0.2–2 m, sometimes moundlike. <b>Stems</b> erect or weakly ascending to spreading, not rooting at nodes; branchlets light gray to ashy gray, rigid, puberulent to tomentulose, hairs curly or wavy, glabrescent. <b>Leaves</b> not fascicled; petiole (0–)1–3 mm; blade flat to ± cupped, elliptic, oblong-elliptic, obovate, or suborbiculate, 5–15(–20) × 3–14(–15) mm, base cuneate to rounded, margins thick, not revolute, entire or remotely denticulate, teeth 1–5(–7), apex acute to ± truncate, abaxial surface pale green to grayish green, glabrate or puberulent, hairs curly or wavy, glabrescent, adaxial surface grayish green, puberulent, hairs curly or wavy, glabrescent. <b>Inflorescences</b> axillary, rarely racemelike, 0.7–3 cm. <b>Flowers</b>: sepals and petals white to cream, sometimes pale blue or lavender; nectary yellowish green, brown, or blue. <b>Capsules</b> 3.5–6 mm wide, not, or sometimes weakly, lobed; valves smooth, horns lateral, prominent to minute or absent, spreading, intermediate ridges absent.</span><!--

-->{{Treatment/Body
|phenology=Flowering Feb–May.
|habitat=Rocky slopes, ridges, alluvial fans, sagebrush and montane shrublands, pinyon and/or juniper and montane conifer woodlands.
|elevation=900–2900.
|distribution=Ariz.;Calif.;Nev.;N.Mex.;Tex.;Utah;n;c Mexico.
|discussion=<p><i>Ceanothus pauciflorus</i> as circumscribed here includes plants having flat to cupped leaf blades with a sparse to dense but not intertwined indumentum composed of short curly or wavy hairs, at least when young; this indumentum also occurs on the petiole and ultimate branchlets. Such plants in the United States have been treated either as <i>C. greggii</i> or <i>C. vestitus</i> (M. Van Rensselaer and H. McMinn 1942). However, R. McVaugh (1998) and D. O. Burge and K. Zhukovsky (2013) provided evidence that they should be treated as <i>C. pauciflorus</i>. Specimens from the desert slopes of the Sierra <i>Nevada</i> and San Bernardino Mountains, California, and a few scattered localities in western Arizona, have leaves similar in shape and dentation to those of <i>C. perplexans</i>, suggesting local hybridization.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ceanothus pauciflorus
|author=
|authority=de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|rank=species
|parent rank=subgenus
|synonyms=Ceanothus greggii;C. greggii var. franklinii;C. vestitus
|basionyms=
|family=Rhamnaceae
|phenology=Flowering Feb–May.
|habitat=Rocky slopes, ridges, alluvial fans, sagebrush and montane shrublands, pinyon and/or juniper and montane conifer woodlands.
|elevation=900–2900.
|distribution=Ariz.;Calif.;Nev.;N.Mex.;Tex.;Utah;n;c Mexico.
|reference=None
|publication title=Prodr.
|publication year=1825
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V12/V12_630.xml
|genus=Ceanothus
|subgenus=Ceanothus subg. Cerastes
|species=Ceanothus pauciflorus
}}<!--

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