Difference between revisions of "Laënnecia filaginoides"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 376. 1836.
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|name=Conyza filaginoides | |name=Conyza filaginoides | ||
|authority=(de Candolle) Hieronymus | |authority=(de Candolle) Hieronymus | ||
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|hierarchy=Asteraceae;Asteraceae tribe Astereae;Laënnecia;Laënnecia filaginoides | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Laënnecia;Laënnecia filaginoides | ||
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name=Laënnecia filaginoides | name=Laënnecia filaginoides | ||
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|authority=filaginoides de Candolle in A. P. de Candolle and A. L. P. P. de Candolle | |authority=filaginoides de Candolle in A. P. de Candolle and A. L. P. P. de Candolle | ||
|rank=species | |rank=species | ||
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|publication year=1836 | |publication year=1836 | ||
|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_38.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Laënnecia | |genus=Laënnecia | ||
Revision as of 20:28, 16 December 2019
Annuals, 10–30+ cm. Leaf blades: bases obscurely, if at all, clasping, faces densely to loosely tomentose (at least abaxially, sometimes glandular beneath tomentum); proximal narrowly obovate or oblanceolate to linear, 10–30 × 1–5 mm, often obscurely pinnately lobed or toothed; distal similar, smaller, entire or distally toothed. Heads in ± racemiform arrays (on main and lateral stems). Involucres 3.5–4.5 mm. Receptacles 1.5–2.5 mm diam. Pistillate florets 20–40+; corollas: lengths ± 1/2 styles, laminae 0. Disc florets 3–10. Cypselae purplish, 1.3–1.5 mm, densely sericeous (hairs 0.3–0.5 mm), sometimes glandular near apices; pappi of 30–40+ white bristles in 2 series, outer ± persistent, 0.8–1 mm, inner persistent or ± fragile, 2–3 mm. 2n = 18.
Phenology: Flowering late summer–fall.
Habitat: Disturbed sites, openings in pine and oak forests
Elevation: 1800–2300 m
Discussion
Selected References
None.