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

Family Dioscoreaceae

Synonyms: Stenomeridaceae APNI*

Description: Herbs or rarely shrubs, mostly with stems arising from an underground tuber.

Leaves alternate [or opposite], usually simple [or rarely palmately compound]; lamina with 3–7 longitudinal veins and reticulate secondary venation; stipules absent.

Inflorescence of axillary spikes or racemes, sometimes forming terminal panicles. Flowers actinomorphic, 3-merous, [bisexual] or more often unisexual and then plants dioecious. Tepals 6, in 2 whorls. Stamens usually 6; filaments free; anthers 2-locular, introrse or extrorse, dehiscing by longitudinal slits. Ovary inferior, 3-locular; ovules usually 2 per loculus; stigmas 3.

Fruit usually a 3-lobed capsule [rarely a berry or samara]; seeds 1 or 2 per loculus, usually winged.


Distribution and occurrence: World: 6 gen., 750 spp., trop. to warm-temp. regions. Aust.: 1 gen., 5 spp., Qld, N.S.W., N.T., W.A.

External links:
Angiosperm Phylogeny Website (Family: Dioscoreaceae, Order: Dioscoreales)
Wikipedia

Text by G. J. Harden
Taxon concept:

One genus in NSW: Dioscorea

  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET