Difference between revisions of "Ageratina havanensis"
Phytologia 19: 222. 1970.
Common names: Havana snakeroot
Basionym: Eupatorium havanense Kunth inA. von Humboldt et al. Nov. Gen. Sp. 4(fol.): 100. 1818; 4(qto.): 128. 1820
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|name=Eupatorium havanense | |name=Eupatorium havanense | ||
|authority=Kunth inA. von Humboldt et al. | |authority=Kunth inA. von Humboldt et al. | ||
| + | |rank=species | ||
|publication_title=Nov. Gen. Sp. | |publication_title=Nov. Gen. Sp. | ||
|publication_place=4(fol.): 100. 1818; 4(qto.): 128. 1820 | |publication_place=4(fol.): 100. 1818; 4(qto.): 128. 1820 | ||
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name=Ageratina havanensis | name=Ageratina havanensis | ||
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|authority=(Kunth) R. M. King & H. Robinson | |authority=(Kunth) R. M. King & H. Robinson | ||
|rank=species | |rank=species | ||
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|publication year=1970 | |publication year=1970 | ||
|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/V21_1400.xml |
|tribe=Asteraceae tribe Eupatorieae | |tribe=Asteraceae tribe Eupatorieae | ||
|genus=Ageratina | |genus=Ageratina | ||
Revision as of 20:34, 16 December 2019
Shrubs [trees], (30–)69–150(–200) cm. Stems erect (brittle), puberulent to glabrous. Leaves persistent, opposite; petioles 3–10(–15) mm; blades deltate to broadly ovate or somewhat hastate, (2–)3–5(–8) × 2–5 cm, bases truncate to cuneate, margins dentate, apices acute, faces glabrous or nearly so, eglandular. Heads clustered. Peduncles 2–14 mm, minutely puberulent. Involucres 4–6 mm. Phyllaries: apices acute, abaxial faces glabrous or nearly so. Corollas white to slightly pinkish, glabrous. Cypselae hispid. 2n = 34.
Phenology: Flowering mainly (Sep–)Oct–Nov(–Dec), also Apr–Jul.
Habitat: Bluffs, limestone outcrops and slopes, ledges along streams, often in oak-juniper woodlands
Elevation: 100–900 m
Distribution
Tex., Mexico, West Indies (Cuba).
Discussion
Ageratina havanensis apparently is the only species of the genus in the flora area with evergreen-persistent leaves.
Selected References
None.
Lower Taxa
None.