Symphyotrichum pilosum (Willd.) G.L.Nesom var. pringlei (A.Gray) G.L.Nesom, Phytologia

Verloove, Filip & Ardenghi, Nicola M. G., 2015, New distributional records of non-native vascular plants in northern Italy, Natural History Sciences 2 (1), pp. 5-14 : 12

publication ID

https://doi.org/ 10.4081/nhs.2015.219

DOI

https://doi.org/10.5281/zenodo.12795575

persistent identifier

https://treatment.plazi.org/id/03C99007-5E7D-0A48-FF9A-FF0D827037FD

treatment provided by

Felipe (2024-06-25 00:42:35, last updated by Guilherme 2024-07-23 11:57:00)

scientific name

Symphyotrichum pilosum (Willd.) G.L.Nesom var. pringlei (A.Gray) G.L.Nesom, Phytologia
status

 

Symphyotrichum pilosum (Willd.) G.L.Nesom var. pringlei (A.Gray) G.L.Nesom, Phytologia View in CoL , 77 (1994, 3): 289. 1995.

( Asteraceae )

Naturalized neophyte new to the flora of Piemonte ( Conti et al., 2005; Celesti-Grapow et al., 2009a).

ITALY. Piemonte. Prov. Vercelli: Ghislarengo , ca. 1.5 km SW of the village, abandoned gravel pit, common, 06.09.2014, F. Verloove 10985 ( BR, MSNM) .

Symphyotrichum pilosum View in CoL is native in eastern North America ( Brouillet et al., 2006) but widely cultivated as an ornamental in Europe. It is a poorly known species that has been confused with S. ericoides View in CoL ( L.) G. L.Nesom, S. lateriflorum View in CoL ( L.) Á.Löve & D.Löve and even S. lanceolatum (Willd.) G.L.Nesom. Italian View in CoL claims of the first two species are mostly erroneous and referable to S. pilosum ( Banfi & Galasso, 2010) View in CoL . The latter is fairly characteristic in having pedicels with numerous linear to subulate bracts and phyllaries with acute, spinulose apices. Stems and leaves may be either pilose to hirsute ( var. pilosum ) or glabrous ( var. pringlei View in CoL ).

In Italy Symphyotrichum pilosum View in CoL was only known with certainty from Lombardia ( Banfi & Galasso, 2010) although it may have been overlooked elsewhere. In Ghislarengo it has invaded rough ground in an abandoned quarry. It looks perfectly established there.

Banfi E. & Galasso G. (eds.), 2010 - La flora esotica lom- barda. Museo di Storia Naturale di Milano, Milano: 1 - 274 + Cd-Rom.

Brouillet L., Semple J. C., Allen G. A., Chambers K. L. & Sundberg S. D., 2006 - Symphyotrichum. In: Flora of North America North of Mexico. Flora of North America Editorial Committee (ed.). Oxford University Press, New York, Oxford, 20: 465 - 539.

Celesti-Grapow L., Alessandrini A., Arrigoni P. V., Banfi E., Bernardo L., Bovio M., Brundu G., Cagiotti M. R., Camarda I., Carli E., Conti F., Fascetti S., Galasso G., Gubellini L., La Valva V., Lucchese F., Marchiori S., Mazzola P., Peccenini S., Poldini L., Pretto F., Prosser F., Siniscalco C., Villani M. C., Viegi L., Wilhalm T. & Blasi C., 2009 a - Inventory of the non-native flora of Italy. Plant Biosystems, 143 (2): 386 - 430.

Conti F., Abbate G., Alessandrini A. & Blasi C. (eds.), 2005 - An annotated checklist of the Italian vascular flora. Palombi Editori, Roma.

F

Field Museum of Natural History, Botany Department

BR

Embrapa Agrobiology Diazothrophic Microbial Culture Collection

MSNM

Museo Civico di Storia Naturale di Milano

L

Nationaal Herbarium Nederland, Leiden University branch

G

Conservatoire et Jardin botaniques de la Ville de Genève

Á

Harvard University - Arnold Arboretum