Guidelines suistainable urban forestry ROMA_Eng

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Table - Trees, shrubbery and herbaceous species and their pollen allergenicity
(Source: ARPA EMR– Dept. IdroMeteoClima - Modified by ISPRA)
Category Family Gender/Species Level of pollen
allergenicity
Aceracee
Acer campester L. (Maple)
Acer platanoides L. (Norway maple)
Acer pseudoplatanus L. (Sycamore)
Acer monspessulanum L. (Montpellier
maple)
Acer opalus Muller (Italian maple)
Acer negundo L. (Manitoba maple)
low
Amarantacee Amaranthus retroflexus L. (Red-root
amaranth)
low -
moderate
Betulacee
Alnus glutinosa L. (Black alder)
Alnus incana L. (Grey Alder)
Alnus cordata L. (Italian Alder)
Betula pendula R. (Silver birch)
very high
Chenopodiacee Chenopodium album L. (White goosefoot) low -
moderate
Composite
(Asteraceae)
Ambrosia artemisiifolia L. (Common
ragweed)
very high
Artemisia vulgaris L. (Mugwort , common
wormwood)
high - very
high
Taraxacum officinale Weber (Common
dandelion)
Matricaria chamomilla L. (Chamomile)
Helianthus annuus L. (Sunflowers)
low
Corilacee
Corylus avellana L. (Common hazel) very high
Ostrya carpinifolia Scop. (Hop hornbeam)
Carpinus betulus L. (European or common
hornbeam)
moderate
Cupressacee
Cupressus sempervirens L. (Mediterranean
cypress)
Juniperus communis L. (Common juniper)
Thuja orientalis L. (Chinese arborvitae)
Thuja occidentalis L. (Arborvitae)
high - very
high
Fagacee
Quercus robur L. (English oak)
Quercus pubescens Willd. (Downy oak)
Quercus petraea (Matt.) Liebl (Sessile oak)
low
Quercus ilex L. (Evergreen oak)
Fagus sylvatica L. (European beech)
Castanea sativa Miller (Sweet chestnut)
-moderate
Graminacee
Avena fatua L.( Common wild oat)
Phragmites communis Trin. (Common reed) low
Hordeum marinum L. (Sea barley)
Holcus lanatus L. (Yorkshire fog)
- moderate
Setaria glauca L .( Pearl millet)
Anthoxanthum odoratum L. (Sweet vernal
grass)
-moderate -
high
Bromus scoparius L. (Brome grasses,) moderate -
very high
Alopecurus pratensis L. (Meadow foxtail) high - very
high
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