Bees - trees with catkins or flowers

Aesculus turbinata

Japanese horse chestnut

Aesculus x carnea 'Briotii'

Red horse chestnut, Red buckeye

Aesculus x carnea 'Plantierensis'

Red horse chestnut, Red buckeye

Aesculus x mutabilis 'Induta'

Changeable horse chestnut

Aesculus x mutabilis 'Penduliflora'

Changeable horse chestnut

Aesculus x neglecta 'Erythroblastos'

Neglected buckeye

Ailanthus altissima

Tree of heaven

Alnus cordata

Italian alder

Alnus glutinosa

Common alder, European alder, Black alder

Alnus glutinosa 'Imperialis'

Royal alder, Common alder, European alder, Black alder

Alnus glutinosa 'Laciniata'

Common alder, European alder, Black alder

Alnus hirsuta

Manchurian alder

Alnus incana

Grey alder

Alnus incana 'Aurea'

Golden grey alder, Grey alder

Alnus incana 'Laciniata'

Cut leaf grey alder, Grey alder

Alnus incana 'Pendula'

Weeping alder, Grey alder

Alnus rubra

Red alder, Oregon alder

Alnus x spaethii

Spaeth's alder

Amomyrtus luma

Luma, Palo madrona, Cauchao

Arbutus menziesii

California Strawberry Tree

Arbutus x andrachnoides

Cyprus strawberry tree, Hybrid strawberry tree

Arbutus x reyorum 'Marina'

Strawberry tree

Betula 'Fascination'

Erman's birch, Gold birch, Russian rock birch

Betula 'Hergest'

Birch, Hybrid birch

Betula 'Mount Apoi'

Birch, Hybrid birch

Betula albosinensis

Chinese red birch, Chinese paper birch

Betula albosinensis

Chinese red birch, Chinese paper birch, Birch

Betula albosinensis 'China Ruby' (B. Humphrey)

Chinese red birch, Chinese paper birch

Betula albosinensis 'Red Panda'

Chinese red birch, Chinese paper birch

Betula albosinensis var. septentrionalis

Northern China red-barked Birch, Chinese red birch, Chinese paper birch

Betula alleghaniensis

Yellow birch, Grey birch, Bitter birch

Betula costata

Costata birch

Betula dahurica

Asian black birch, Dahurian birch

Betula ermanii

Erman's birch, Gold birch, Russian rock birch

Betula ermanii

Erman's birch, Gold birch, Russian rock birch

Betula ermanii 'Grayswood Hill'

Erman's birch, Gold birch, Russian rock birch

Betula grossa

Japanese Cherry Birch

Betula lenta

Sweet birch, Cherry birch, Round-leaf birch, Black birch

Betula maximowicziana

Monarch Birch

Betula medwedewii

Transcaucasian birch

Betula nigra

Black birch, River birch, Red birch

Betula nigra

Black birch, River birch, Red birch

Betula nigra 'Cully'

Black birch, River birch, Red birch

Betula nigra 'Little King'

Black birch, River birch, Red birch

Betula nigra Wakehurst Form

Black birch, River birch, Red birch

Betula papyrifera

Paper Canoe Birch

Betula papyrifera 'Kenaica'

Paper Canoe Birch

Betula pendula

European white birch, Silver birch, Warty birch, Common birch