View source for Baccharis havardii

{{Treatment/ID
|accepted_name=Baccharis havardii
|accepted_authority=A. Gray in A. Gray et al.
|publications={{Treatment/Publication
|title=in A. Gray et al., Syn. Fl. N. Amer.
|place=1(2): 224. 1884
|year=1884
}}
|common_names=Havard’s false willow
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Baccharis;Baccharis havardii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Baccharis]]</div><div class="higher-taxon"><small>species</small>[[Baccharis havardii]]</div></div>
|volume=Volume 20
|mention_page=page 25
|treatment_page=page 28
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Subshrubs,</b> 15–70 cm (much branched from bases). <b>Stems</b> erect (green to tan), slender, striate-angled, glabrous, resinous. <b>Leaves</b> present at flowering; short-petiolate; blades (1-nerved) narrowly spatulate to linear, 20–40 × 2–3 mm, reduced to bracts distally, bases attenuate, margins entire or toothed (teeth to 2 mm), faces glabrous, gland-dotted, resinous. <b>Heads</b> in broad paniculiform arrays. <b>Involucres</b> cylindro-campanulate; staminate 3 mm, pistillate 4–4.5 mm. <b>Phyllaries</b> lanceolate, 1–4 mm, margins scarious, medians green or brownish, apices obtuse to acuminate (thickened, slightly erose and ciliate). <b>Staminate</b> florets 12–15; corollas 3–4 mm. <b>Pistillate</b> florets 15–20; corollas 3 mm. <b>Cypselae</b> 2–2.5 mm, 5-nerved, glabrous; pappi 4 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Sep.
|habitat=Dry rocky hillsides, open ground, calcareous gravels
|elevation=1500–2300 m
|distribution=N.Mex.;Tex.;Mexico (Chihuahua).
|discussion=<p>Found mainly in the Chisos and Davis Mountains of West Texas, Baccharis havardii is distinguished by its short bushy habit, narrow leaves with elongate teeth, and 5-nerved cypselae. G. L. Nesom (pers. comm.) suggested that it is weakly defined and further investigation may demonstrate it should be included in the Mexican species B. sulcata de Candolle (which name would have priority over B. havardii).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Baccharis havardii
|author=
|authority=A. Gray in A. Gray et al.
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering Jul–Sep.
|habitat=Dry rocky hillsides, open ground, calcareous gravels
|elevation=1500–2300 m
|distribution=N.Mex.;Tex.;Mexico (Chihuahua).
|reference=None
|publication title=in A. Gray et al., Syn. Fl. N. Amer.
|publication year=1884
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V19-20-21/V20_16.xml
|tribe=Asteraceae tribe Astereae
|genus=Baccharis
|species=Baccharis havardii
}}<!--

-->[[Category:Treatment]][[Category:Baccharis]]