PlantNET Home PlantNET Home | Search NSW Flora | Contact Us  
FloraOnline
Introduction
Plant Name Search
Index Search
Spatial Search
Identification Keys
Classification
Glossary
HerbLink (Type Images)
WeedAlert
Other PlantNET Sites
Other Data Sources
NEW SOUTH WALES FLORA ONLINE Printable Page

Genus Lotus Family Fabaceae
Subfamily Faboideae

Description: Annual or perennial herbs or subshrubs.

Leaves alternate, imparipinnate, ± sessile; leaflets usually 5, upper 3 towards summit of rachis with lower 2 often smaller, stipule-like and ± stem-clasping; stipules minute or absent.

Inflorescences axillary, flowers ± sessile in umbels subtended by a 3-foliolate leafy bract; peduncle ± longer than subtending leaves, elongating in fruit. Calyx with 5 ± equal teeth or the lowest teeth longest, teeth ± longer than tube. Standard ovate to circular; wings obovate; keel incurved, apex acute and beaked. Stamens diadelphous, filaments alternatively long and short; anthers uniform. Ovary sessile, ovules numerous.

Pod linear, terete or compressed, transversely septate, contorting on dehiscence; seeds 1–many, globose, often compressed, without obvious aril.


Photo © ANBG

Herbarium
Sheet

Distribution and occurrence: World: >100 species, Mediterranean, temperate Eurasia, southern Africa, eastern North America, New Zealand. Australia: 7 species (2 species endemic), all States.

A number of species have been introduced as fodder crops and have become naturalized in surrounding districts.

Text by E. H. Norris & G. J. Harden
Taxon concept:

 Key to the species 
1Umbels usually 8–14-flowered.Lotus uliginosus
Umbels mostly 1–7-flowered or occasionally to 8.2
2Flowers purple, red to pink or white.3
Flowers yellow.
                       Back to 1
5
3Umbels 3–8-flowered, peduncles much longer than subtending leaves; corolla usually pink to white.Lotus australis
Umbels 1–3-flowered, peduncles about same length or shorter than the subtending leaves; corolla usually red.
                       Back to 2
4
4Corolla <10 mm long; leaflets usually <10 mm long; pods not winged.Lotus cruentus
Corolla >15 mm long; leaflets >10 mm long; pods with wings c. 2 mm wide.
                       Back to 3
Lotus tetragonolobus
5Flowers >9 mm long; umbels 2–8-flowered.6
Flowers <9 mm long; umbels 1–4-flowered.
                       Back to 2
7
6Teeth of calyx equal to or shorter than tube; pods usually 1.5–3 cm long; perennials.Lotus corniculatus
Teeth of calyx about 1.5 times as long as tube; pods mostly 3–4.5 cm long; annuals.
                       Back to 5
Lotus preslii
7Pods 6–15 mm long; umbels 2–4-flowered; keel with a long beak bent upwards from near base.Lotus subbiflorus
Pods 20–30 mm long; umbels 1- or 2-flowered; keel with a short beak bent upwards from the middle.
                       Back to 5
Lotus angustissimus

  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET