Difference between revisions of "Baccharis salicifolia"
Syn. Pl. 2: 425. 1807.
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|name=Molina salicifolia | |name=Molina salicifolia | ||
|authority=Ruiz & Pavón | |authority=Ruiz & Pavón | ||
| + | |rank=species | ||
|publication_title=Syst. Veg. Fl. Peruv. Chil., | |publication_title=Syst. Veg. Fl. Peruv. Chil., | ||
|publication_place=210. 1798 | |publication_place=210. 1798 | ||
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|name=Baccharis viminea | |name=Baccharis viminea | ||
|authority=de Candolle | |authority=de Candolle | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Baccharis viminea var. atwoodii | |name=Baccharis viminea var. atwoodii | ||
|authority=S. L. Welsh | |authority=S. L. Welsh | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Baccharis;Baccharis salicifolia | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Baccharis;Baccharis salicifolia | ||
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|discussion=<p><i>Baccharis salicifolia</i> is part of a complex that extends through the southwestern United States, Mexico, Central America, and South America to Argentina and Chile (J. Cuatrecasas 1968). It is recognized by the narrowly lanceolate, willowlike, finely serrate leaves with acute or acuminate apices, smallish heads in dense clusters, reddish phyllaries, and 5-nerved cypselae. By tagging and measuring individual plants throughout the year, D. H. Wilken (1972) demonstrated that <i>B. salicifolia</i> has distinct seasonal forms. The North American plants were once known as B. glutinosa or B. viminea, which were differentiated from each other by differences in woodiness, leaf size and serration, and flowering time.</p> | |discussion=<p><i>Baccharis salicifolia</i> is part of a complex that extends through the southwestern United States, Mexico, Central America, and South America to Argentina and Chile (J. Cuatrecasas 1968). It is recognized by the narrowly lanceolate, willowlike, finely serrate leaves with acute or acuminate apices, smallish heads in dense clusters, reddish phyllaries, and 5-nerved cypselae. By tagging and measuring individual plants throughout the year, D. H. Wilken (1972) demonstrated that <i>B. salicifolia</i> has distinct seasonal forms. The North American plants were once known as B. glutinosa or B. viminea, which were differentiated from each other by differences in woodiness, leaf size and serration, and flowering time.</p> | ||
|tables= | |tables= | ||
| − | |references= | + | |references= |
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Baccharis salicifolia | name=Baccharis salicifolia | ||
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|authority=(Ruiz & Pavón) Persoon | |authority=(Ruiz & Pavón) Persoon | ||
|rank=species | |rank=species | ||
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|elevation=30–2400 m | |elevation=30–2400 m | ||
|distribution=Ariz.;Calif.;Colo.;Nev.;N.Mex.;Tex.;Utah;Mexico;South America. | |distribution=Ariz.;Calif.;Colo.;Nev.;N.Mex.;Tex.;Utah;Mexico;South America. | ||
| − | |reference= | + | |reference=None |
|publication title=Syn. Pl. | |publication title=Syn. Pl. | ||
|publication year=1807 | |publication year=1807 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_26.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Baccharis | |genus=Baccharis | ||
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Revision as of 20:27, 16 December 2019
Shrubs, 30–400 cm (stems clustered). Stems spreading to ascending, green to tan, simple proximally, sparingly branched distally, striate-angled, glabrous or minutely hairy, resinous and ± resin-varnished. Leaves present at flowering (abundant, well developed); sessile or petiolate; blades lanceolate-elliptic, slightly falcate (willowlike), 30–150 × 3–20 mm, bases attenuate, margins usually finely serrate from bases to apices, sometimes entire, apices acute to acuminate, faces glabrous, gland-dotted, ± resinous. Heads in terminal, compound corymbiform arrays (often involving distal branches). Involucres hemispheric; staminate 3–6 mm, pistillate involucres 3–6 mm. Phyllaries ovate to lanceolate, 2–4 mm, margins scarious, erose or irregularly dentate, midribs distinct, medians green or reddish, apices (greenish or brownish purple) obtuse to acuminate (pale and dry, glabrous). Staminate florets (10–)17–48; corollas 4–6 mm. Pistillate florets 50–150; corollas 2–3.5 mm. Cypselae 0.8–1.5 mm, 5-nerved, glabrous; pappi 3–6 mm. 2n = 18, 36.
Phenology: Flowering (Jan–)Mar–Oct.
Habitat: Stream banks, dry washes, sandy flood plains, riparian woodlands, disturbed sites, ditches
Elevation: 30–2400 m
Distribution
Ariz., Calif., Colo., Nev., N.Mex., Tex., Utah, Mexico, South America.
Discussion
Baccharis salicifolia is part of a complex that extends through the southwestern United States, Mexico, Central America, and South America to Argentina and Chile (J. Cuatrecasas 1968). It is recognized by the narrowly lanceolate, willowlike, finely serrate leaves with acute or acuminate apices, smallish heads in dense clusters, reddish phyllaries, and 5-nerved cypselae. By tagging and measuring individual plants throughout the year, D. H. Wilken (1972) demonstrated that B. salicifolia has distinct seasonal forms. The North American plants were once known as B. glutinosa or B. viminea, which were differentiated from each other by differences in woodiness, leaf size and serration, and flowering time.
Selected References
None.