Asparagales
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according to the Angiosperm Phylogeny Group Agapanthaceae |
Asparagales is an order of monocots which includes a number of families of non-woody plants. In older classification systems, the families now included in the Asparagales were included in order Liliales, and some genera of which were even included in family Liliaceae. Some classification systems separate some of the families listed below into additional orders, including orders Orchidales and Iridales, while other systems, especially the Angiosperm Phylogeny Group's classification system, include the Orchidales and Iridales within the Asparagales. The order is named after the genus Asparagus.
The Angiosperm Phylogeny Group's classification system is widely used by botanists, and was updated as the APG II in 2002 to include recent findings, especially in DNA analysis. Their 1998 scheme identified 29 families in order Asparagales. The APG II consolidates some families, and recognizes an alternative system of fewer, larger families, in which certain smaller families can be grouped within other larger families based on close genetic affinities and still follow the 'APG system'. Under the new classification system one could, for example, correctly include daylilies (Hemerocallis) in family Hemerocallidaceae, or in family Xanthorrhoeaceae. The APG II classification of the Asparagales is as follows:
- Alliaceae
- Asparagaceae
- Asteliaceae
- Blandfordiaceae
- Boryaceae
- Doryanthaceae
- Hypoxidaceae
- Iridaceae
- Ixioliriaceae
- Lanariaceae
- Orchidaceae
- Tecophilaeaceae
- Xanthorrhoeaceae
Classification systems that separate the Asparagales, Orchidales and Iridales are generally organized as follows:
- Asparagales, narrow sense
- Family Asparagaceae (asparagus family)
- Family Alliaceae (onion family)
- Family Agavaceae (agave family)
- Family Amaryllidaceae (amaryllis family)
- Family Asphodelaceae (asphodel family)
- Family Hyacinthaceae (hyacinth family)
- Cetera
- Orchidales
- Family Geosiridaceae
- Family Burmanniaceae
- Family Corsiaceae
- Family Orchidaceae (orchid family)
- Iridales
- Family Iridaceae (Iris family)da:Asparges-ordenen (Asparagales)
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