'Baby Joe' wird wie in deinem link oben im
Missouri Botanical Garden Plant Finder Eutrochium dubium genannt. Mit dem amerikanischen Namen
Joe Pye weed. Es ist eine kleinwüchsiges Kultivart des großen
Joe Pye weed.
"Noteworthy Characteristics
Eutrochium dubium, commonly known as coastal plain Joe Pye weed, is a coarse, herbaceous perennial that typically grows to 3-5’ tall and to 2-4’ wide on purple-spotted stems clad with ovate, coarsely-toothed, strongly three-veined leaves (to 6” long) arranged in whorls of 3-4. This is a wetland species which is native primarily to sandy swamps, riverbanks and moist thickets in Eastern North America from Nova Scotia and Maine south along the coastal plain to South Carolina and Alabama. Small disk flowers (rays absent) ranging in color from pale pink to dark purple bloom in corymbiform, dome-shaped clusters (4-7” across) from July to September.
This plant has been moved from the genus Eupatorium to the genus Eutrochium. Eupatorium dubium is a synonym.
Genus name is derived from the Greek words eu meaning well and troche meaning wheel-like in reference to the whorled leaves.
Specific epithet from Latin means
doubtful.
Joe Pye was reportedly an Indian herbalist and healer from the New England area.
‘Baby Joe’ is a
more compact cultivar than the species, typically growing in a clump to 2-3’ tall and to 1-2’ wide. Patent information states that it is the result of a cross-pollination of two unnamed selections of
Eupatorium purpureum (now attributed to Eutrochium dubium) which was discovered as a single flowering plant grown in a controlled greenhouse environment in Rijpwetering, The Netherlands in September of 2003. U.S. Plant Patent PP20,320 was issued September 15, 2009. The unique characteristics of ‘Baby Joe’ as set out in the plant patent documents are: (1) upright and relatively compact plant habit, (2) moderately vigorous growth habit, (3) freely flowering habit, (4) large grayed purple-colored inflorescences and (5) strong and upright peduncles."
Eutrochium in der plant list:
Eutrochium dubium (Willd. ex Poir.) E.E.Lamont
Eutrochium fistulosum (Barratt) E.E.Lamont
Eutrochium maculatum (L.) E.E.Lamont
Eutrochium maculatum var. bruneri (A.Gray) E.E.Lamont
Eutrochium maculatum var. foliosum (Fernald) E.E.Lamont
Eutrochium purpureum (L.) E.E.Lamont
Eutrochium purpureum var. holzingeri (Rydb.) E.E.Lamont
Eutrochium steelei (E.E.Lamont) E.E.Lamont
Da sieht man, dass der Autorenname entscheidend wichtig ist. Ohne den Autorenname keine nomenklatorische Zuordnung von Taxons.
Eric E. Lamont vom New York Botanical Garden hat uns den Namen eingebrockt:
Asteraceae
Eutrochium dubium ( Willd. ex Poir. ) E.E.Lamont
Sida 21(2): 901. 2004 [28 Dec 2004]
Sida; Contributions to Botany. Dallas; Fort Worth, TX Publikationsliste von Eric E. Lamont.
Alles interessant, aber für uns nicht relevant. Ich sagte es immer wieder und werde müde es zu wiederholen. Die Gepflogenheiten in akademischen Kreisen, der Publikationsdruck, der Forschergeist, das Mitteilungsbedürfnis, die Kommunikationspraxis, der ganze akademische Betrieb verlangt und bringt es mit sich, dass immer wieder neue Namen auftauchen und alte verschwinden.
Das ist toxonomischer Stoffwechsel. Die Wesensnatur der Pflanze uns gegenüber hat damit nichts zu tun.