Difference between revisions of "Eutrochium fistulosum"
Sida 21: 901. 2004.
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|common_names=Trumpetweed;hollow joepyeweed | |common_names=Trumpetweed;hollow joepyeweed | ||
+ | |special_status={{Treatment/ID/Special_status | ||
+ | |code=E | ||
+ | |label=Endemic | ||
+ | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Eupatorium fistulosum | |name=Eupatorium fistulosum | ||
|authority=Barratt | |authority=Barratt | ||
+ | |rank=species | ||
|publication_title=Eupatoria Verticillata, no. | |publication_title=Eupatoria Verticillata, no. | ||
|publication_place=1. 1841 | |publication_place=1. 1841 | ||
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|name=Eupatoriadelphus fistulosus | |name=Eupatoriadelphus fistulosus | ||
|authority=(Barratt) R. M. King & H. Robinson | |authority=(Barratt) R. M. King & H. Robinson | ||
+ | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Eupatorium purpureum var. angustifolium | |name=Eupatorium purpureum var. angustifolium | ||
|authority=Torrey & A. Gray | |authority=Torrey & A. Gray | ||
+ | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Eupatorieae;Eutrochium;Eutrochium fistulosum | |hierarchy=Asteraceae;Asteraceae tribe Eupatorieae;Eutrochium;Eutrochium fistulosum | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Eutrochium fistulosum | name=Eutrochium fistulosum | ||
− | |||
|authority=(Barratt) E. E. Lamont | |authority=(Barratt) E. E. Lamont | ||
|rank=species | |rank=species | ||
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|publication title=Sida | |publication title=Sida | ||
|publication year=2004 | |publication year=2004 | ||
− | |special status= | + | |special status=Endemic |
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_1200.xml |
|tribe=Asteraceae tribe Eupatorieae | |tribe=Asteraceae tribe Eupatorieae | ||
|genus=Eutrochium | |genus=Eutrochium |
Latest revision as of 21:08, 5 November 2020
Plants 60–350+ cm. Stems usually purple throughout, sometimes greenish or purple-spotted, hollow proximally, usually glabrous proximally (rarely pubescent toward bases when young), ± glandular-puberulent distally and among heads (glaucous throughout, at least when fresh). Leaves mostly in 4s–6s(–7s); petioles (5–)10–30(–50) mm, glabrous; blades pinnately veined, narrowly to broadly lanceolate, mostly (8–)12–25(–28) × (1.5–)2–6(–9) cm, bases gradually tapered, margins finely serrate (teeth rounded, blunt), abaxial faces sparingly and minutely ± scabrellous to glabrate, adaxial faces glabrous or sparingly puberulent. Heads in convex to rounded (dome-shaped), compound corymbiform arrays (ultimately broadly cylindric). Involucres often purplish, 6.5–9 × 2.5–5 mm. Phyllaries glabrous or outer with hairs on midveins. Florets (4–)5–7; corollas usually pale pinkish or purplish, 4.5–6 mm. Cypselae 3–4.5 mm. 2n = 20.
Phenology: Flowering late summer–early fall.
Habitat: Wet lowlands, alluvial woods, along streams, moist meadows, bogs, marshes with permanently saturated or seasonally flooded organic soils, open sun or partial shade
Elevation: 10–1400+ m
Distribution
![V21-1200-distribution-map.gif](/w/images/3/3d/V21-1200-distribution-map.gif)
Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Va., W.Va.
Discussion
In the field, Eutrochium fistulosum is the most distinct species of the genus; herbarium specimens do not always document the distinguishing characteristics: heights commonly surpassing 2 m, proximal stem diameters usually 2 cm or greater, stems strongly glaucous (mostly hollow, sometimes distally hollow), leaves commonly 6 or 7 per node, arrays of heads commonly 30 × 22 cm.
Selected References
None.