Plant genera
1 067 genera. In the registries, a single genus may be divided into subspecies and groups: maize, for example, is listed under six different species entries. The genus groups them together.
Borage
Borago
2 species
5
Betony
Betonica
2 species
5
Elephant-ear
Bergenia
4 species
5
Burdock
Arctium
2 species
5
Aloysia
2 species
5
Allamanda
2 species
5
Silk tree
Albizia
5 species
5
Agrimony
Agrimonia
3 species
5
Baneberry
Actaea
6 species
5
Hybrieds
1 species
5
Vuylstekeara
1 species
4
Goatsbeard
Tragopogon
2 species
4
Dandelion
Taraxacum
3 species
4
Solidaster
2 species
4
Ironwort
Sideritis
5 species
4
Sida
5 species
4
Semponium
1 species
4
Sweet box
Sarcococca
3 species
4
Butcher's broom
Ruscus
4 species
4
Madder
Rubia
2 species
4
Paper daisy
Rhodanthe
6 species
4
Rhizophagus
1 species
4
Retama
2 species
4
Ptilotus
4 species
4
Brake fern
Pteris
4 species
4
Knotweed
Persicaria
6 species
4
Slipper orchid
Paphiopedilum
2 species
4
Pachyveria
1 species
4
Moonstone
Pachyphytum
10 species
4
Tweedia
Oxypetalum
3 species
4
Otomeria
2 species
4
Tupelo
Nyssa
4 species
4
Cupflower
Nierembergia
6 species
4
Muehlenbeckia
3 species
4
Miltonidium
1 species
4
Lophomyrtus
4 species
4
Libertia
5 species
4
Himalayan honeysuckle
Leycesteria
2 species
4
Bitterroot
Lewisia
4 species
4
Motherwort
Leonurus
4 species
4
Spring starflower
Ipheion
2 species
4
Hypsizygus
3 species
4
Haworthia
10 species
4
Grevillea
43 species
4
Chrysanthemum
Glebionis
3 species
4
Geogenanthus
2 species
4
Beech
Fagus
5 species
4
California poppy
Eschscholzia
2 species
4
Foxtail lily
Eremurus
2 species
4
Wild rye
Elymus
15 species
4
Globe thistle
Echinops
4 species
4
Firecracker flower
Crossandra
2 species
4
Corokia
2 species
4
Lily of the valley
Convallaria
3 species
4
Coffee
Coffea
4 species
4
Leadwort
Ceratostigma
5 species
4
Hickory
Carya
5 species
4
Camass
Camassia
3 species
4
Bottlebrush
Callistemon
9 species
4
Brachyglottis
6 species
4