Difference between revisions of "Baccharis sergiloides"
in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 83. 1859.
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|elevation=100–1800 m | |elevation=100–1800 m | ||
|distribution=Ariz.;Calif.;Nev.;Utah;Mexico (Baja California;Sonora). | |distribution=Ariz.;Calif.;Nev.;Utah;Mexico (Baja California;Sonora). | ||
− | |discussion=<p>Baccharis sergiloides is recognized by its fastigiate, broomlike habit, and large obovate leaves that often wither before flowering. It differs from B. sarothroides in its larger leaves, more or less sessile and lateral heads, and smaller florets and fruits.</p> | + | |discussion=<p><i>Baccharis sergiloides</i> is recognized by its fastigiate, broomlike habit, and large obovate leaves that often wither before flowering. It differs from <i>B. sarothroides</i> in its larger leaves, more or less sessile and lateral heads, and smaller florets and fruits.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1859 | |publication year=1859 | ||
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V20_29.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Baccharis | |genus=Baccharis |
Revision as of 15:22, 18 September 2019
Shrubs, 50–200 cm (freely branched, broomlike). Stems erect, fastigiate, striate-angular, green, glabrous, resinous. Leaves cauline (proximal withering and sparse by flowering); sessile; blades (1-nerved) broadly oblanceolate to obovate or spatulate, 10–35 × 5–15 mm (thick, firm), bases attenuate, margins entire or irregularly serrate (teeth 1–4, distal leaves entire), apices obtuse to acute, faces glabrous, gland-dotted, resinous. Heads (sessile or short-pedunculate on lateral branches) in crowded paniculiform arrays. Involucres funnelform to campanulate; staminate 3–5 mm, pistillate 3–5 mm. Phyllaries ovate to linear-lanceolate, 1–5 mm, margins scarious, erose, medians green, apices rounded to acute, glabrous, gland-dotted, resinous. Staminate florets 24–33; corollas 2–3.5 mm. Pistillate florets 15–30; corollas 1.6–2.7 mm. Cypselae 1–2 mm, prominently 10-nerved, glabrous; pappi 1.7–3.1 mm. 2n = 18.
Phenology: Flowering Jul–Oct.
Habitat: Gravelly or sandy streambeds, dry washes, grasslands
Elevation: 100–1800 m
Distribution
Ariz., Calif., Nev., Utah, Mexico (Baja California, Sonora).
Discussion
Baccharis sergiloides is recognized by its fastigiate, broomlike habit, and large obovate leaves that often wither before flowering. It differs from B. sarothroides in its larger leaves, more or less sessile and lateral heads, and smaller florets and fruits.
Selected References
None.