Parc Cefn Onn has a significant number of rare and notable trees, including three Britain & Ireland Champions and 18 Wales Champions recorded in the Tree Register. These are shown in the following table, which can be sorted on botanical name or common name by clicking on the Name or Common Name heading.
Name | Common Name | Origin | Status | Location | OS Grid | Tag | Place | Event | Waypoint | |
---|---|---|---|---|---|---|---|---|---|---|
Abies cilicica | Cilician fir | S Turkey, NW Syria & Lebanon | Rare Glamorgan Champion 2013 | Lower park, west, near pool | ST 17745 84033 | Parc Cefn Onn | 013 | |||
Abies grandis | Grand fir | West North America | Glamorgan Champion 2013 | Upper park, east side of valley | ST 17725 84453 | Parc Cefn Onn | 233 | |||
Abies koreana | Korean fir | South Korea | Glamorgan Champion 2015 | Lower park, east of main path | ST 17849 83920 | Parc Cefn Onn | 031 | |||
Acer laxiflorum | Loose-flowered maple | West China | GB Champion 2013 | Lower park south, west of main path | ST 17807 83899 | Parc Cefn Onn | 217 | |||
Acer palmatum | Japanese maple | Japan, China & Korea | Wales Champion 2013 | Upper park, west & uphill from the pool | ST 17766 84410 | Parc Cefn Onn | 231 | |||
Acer palmatum 'Linearilobum' | Japanese maple 'Red pygmy' | Japan | Wales Champion 2013 | Upper park, west & uphill from the pool | ST 17760 84418 | Parc Cefn Onn | 235 | |||
Acer tschonoskii subsp. koreanum | Korean butterfly maple | China & Korea | Rare GB Champion 2016 | West side of bathing pool | ST 17802 84390 | Parc Cefn Onn | 476 | |||
Cedrus brevifolia | Cyprian cedar | Cyprus | Rare Wales Champion 2013 | Lower park, near first westerly path | ST 17818 83829 | Parc Cefn Onn | 016 | |||
Chamaecyparis lawsoniana 'Fraseri' | Lawson's cypress 'Fraseri' | Rather rare Wales Champion 2013 | Upper park, below ruined summer house | ST 17765 84446 | Parc Cefn Onn | 223 | ||||
Chamaecyparis lawsoniana 'Stewartii' | Lawson's cypress 'Stewarti' | Glamorgan Champion 2013 | Upper park, below ruined summer house | ST 17767 84445 | Parc Cefn Onn | 222 | ||||
Chamaecyparis pisifera 'Squarrosa' | Squarrosa sawara cypress | Japan | Lower park, beside the first westerly path | ST 17765 83963 | Parc Cefn Onn | 818 | ||||
Cornus 'Norman Hadden' | Dogwood 'Norman Hadden' | Garden origin | Upper park, west & uphill from the pool | ST 17770 84410 | Parc Cefn Onn | 230 | ||||
Cryptomeria japonica #1 | Japanese red cedar | Japan | Lower park, off the east path | ST 17869 83965 | Parc Cefn Onn | 215 | ||||
Cryptomeria japonica #2 | Japanese red cedar | Japan | Upper park, near ruined summer house | ST 17803 84423 | Parc Cefn Onn | 478 | ||||
Cunninghamia lanceolata | Chinese fir | China & Vietnam | Rather rare Wales Champion 2013 | Lower park, north, to east of main path | ST 17841 84017 | Parc Cefn Onn | 023 | |||
Diselma archeri† | Dwarf pine | Tasmania | Upper park, west & uphill from the pool | ST 17768 84411 | Parc Cefn Onn | 477 | ||||
Fitzroya cupressoides #1 | Patagonian cypress | South Andes | Rather rare Wales Champion 2013 | Lower park, north west | ST 17743 84077 | Parc Cefn Onn | 221 | |||
Fitzroya cupressoides #2 | Patagonian cypress | South Andes | Rather rare | Lower park, west | ST 17768 84001 | Parc Cefn Onn | 465 | |||
Juniperus recurva var. coxii | Cox's juniper | Upper Burma | Wales Champion 2015 | Upper park, top west, beside small pool | ST 17641 84454 | Parc Cefn Onn | 232 | |||
Magnolia obovata | Japanese big-leaf magnolia | Japan | Rather rare Glamorgan Champion 2015 | Lower park, upper west | ST 17716 84070 | Parc Cefn Onn | 220 | |||
Magnolia salicifolia | Willow-leaved magnolia | Japan | Glamorgan Champion 2015 | Lower park, upper west | ST 17763 83974 | Parc Cefn Onn | 228 | |||
Picea omorika | Serbian spruce | Serbia | Glamorgan Champion 2013 | Upper park, far north | ST 17640 84482 | Parc Cefn Onn | 224 | |||
Picea spinulosa | Sikkim spruce | East Himalaya | Rather rare | Lower park, off east path | ST 17840 83922 | Parc Cefn Onn | 200 | |||
Pinus ayacahuite | Mexican white pine | Mexico & Central America | Rather rare Glamorgan Champion 2013 | Lower park, upper west, by path | ST 17725 84054 | Parc Cefn Onn | 027 | |||
Pinus contorta var. contorta | Shore pine | West North America | Lower park, south, west of main path | ST 17802 83888 | Parc Cefn Onn | 237 | ||||
Pinus jeffreyi | Jeffrey pine | SW USA & Mexico | Glamorgan Champion 2013 | Lower park, west, near pool | ST 17725 84013 | Parc Cefn Onn | 011 | |||
Pinus monticola | Western white pine | West North America | Rare Glamorgan Champion 2013 | Lower park, upper west, near path | ST 17722 84051 | Parc Cefn Onn | 234 | |||
Pinus x holfordiana | Holford's pine | Garden origin | Lower park, upper west | ST 17712 84048 | Parc Cefn Onn | 012 | ||||
Populus szechuanica var. tibetica | Tibetan poplar | West China | Glamorgan Champion 2013 | Lower park, beside west path | ST 17784 84042 | Parc Cefn Onn | 213 | |||
Prunus avium 'Plena' | Double gean | Europe & West Asia | Glamorgan Champion 2015 | Lower park, off east path | ST 17846 83911 | Parc Cefn Onn | 201 | |||
Pseudotsuga macrocarpa | Big-cone Douglas fir | South California | Wales Champion 2013 | Lower park, west, near pool | ST 17750 84020 | Parc Cefn Onn | 528 | |||
Quercus canariensis | Algerian oak | North Africa & Iberia | Rare Glamorgan Champion 2013 | Lower park, south, west of path | ST 17817 83817 | Parc Cefn Onn | 030 | |||
Quercus x schochiana | Schoch oak | SE USA | Rare Wales Champion 2021 | Lower park, off west path | ST 17795 84032 | Parc Cefn Onn | 625 | |||
Rehderodendron macrocarpum | South west China | Rare Wales Champion 2015 | Top of lower park, east of bridge | ST 17860 84063 | Parc Cefn Onn | 214 | ||||
Stuartia pseudocamellia | Deciduous camellia | Japan | Rather rare Glamorgan Champion 2013 | Lower park, beside east path | ST 17868 83977 | Parc Cefn Onn | 022 | |||
Taxus baccata 'Dovastoniana' | Westfelton yew | Garden origin | Rare | Lower park, beside east path | ST 17856 84000 | Parc Cefn Onn | 474 | |||
Thuja plicata 'Zebrina' | Western red cedar 'Zebrina' | Garden origin | Wales Champion 2013 | Upper park, just south of summer house | ST 17784 84429 | Parc Cefn Onn | 239 | |||
Trochodendron aralioides | Wheel tree | Japan, Taiwan & S. Korea | Rare Glamorgan Champion 2016 | Lower park, west | ST 17776 84001 | Parc Cefn Onn | 475 | |||
Tsuga diversifolia | Northern Japanese hemlock | North Japan | Rare Wales Champion 2013 | Lower park, west of main path | ST 17800 83960 | Parc Cefn Onn | 020 | |||
Tsuga dumosa | Himalayan hemlock | South west China | Rare Wales Champion 2013 | Lower park, west of main path | ST 17803 83955 | Parc Cefn Onn | 021 |