Asparagaceae Explained

Asparagaceae, known as the asparagus family, is a family of flowering plants, placed in the order Asparagales of the monocots. The family name is based on the edible garden asparagus, Asparagus officinalis. This family includes both common garden plants as well as common houseplants. The garden plants include asparagus, yucca, bluebell, and hosta, and the houseplants include snake plant, corn cane, spider plant, and plumosus fern.

The Asparagaceae is a morphologically heterogenous family with the included species varying widely in their appearance and growth form. It has a cosmopolitan distribution, with genera and species contained in the family native to all continents except Antarctica.[1] [2]

Taxonomy

Early taxonomy

The plant family Asparagaceae was first named, described, and published in Genera Plantarum in 1789 by the French botanist Antoine Laurent de Jussieu, who is particularly noted for his work in developing the concept of plant families.[3] From the time of first introduction until the 21st century, the Asparagaceae was a monotypic family containing only the single genus, Asparagus, after which the family was named.

Asparagaceae under the APG II system

In 2003, the formation of the APG II plant classification system radically expanded the Asparagaceae to include the genera and species previously contained in seven plant families. In the APG II system, two options were provided as to the circumscription of the family, with Asparagaceae sensu lato (meaning in the wider sense) being the broader circumscription of the family documented in the APG II; or, Asparagaceae sensu stricto (meaning in the strict sense) consisting of only Asparagus and Hemiphylacus. If opting to use Asparagaceae sensu lato, the paper outlining the APG II system recommended placing the previously recognised family in parenthesis after Asparagaceae.[4] The paper also recommended including grouping the families Anemarrhenaceae, Anthericaeae, Behniaceae and Herreriaceae with the Agavaceae, nothing that in 2000, the Convallariaceae, Dracaenaceae, Eriospermaceae and Nolinaceae had been grouped together in the Ruscaceae.[5]

Asparagaceae under the APG II system!Family!Previously recognised families optionally included in APG II!Notes
Asparagaceae(sensu lato)AgavaceaeIncludes:AnemarrhenaceaeAnthericaeaeBehniaceaeHerreriaceae
Aphyllanthaceae
Asparagaceae (sensu stricto)
Hyacinthaceae
Laxmanniaceae
RuscaceaeIncludes:ConvallariaceaeDracaenaceaeEriospermaceaeNolinaceae
Themidaceae

Asparagaceae under the APG III system

In 2009, botanists proposed a major revision of the Asparagales order of plants, that included a vast expansion of three constituent plant families; the Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae, to include large number of genera in former plant families by placing them into subfamilies nested within these three plant families. Under the APG III system, the Asparagaceae contain seven subfamilies, and unlike the APG II system, Asparagaceae was only circumscribed in the broad sense (sensu lato), but the Asparagaceae subfamily Asparagoideae is roughly equivalent to Asparageaceae (sensu stricto) under the APG II system.[6] Whilst the subfamilies are broadly equivalent to the previous subdivision by families under the APG II system, genera previously included in one previously recognised family may have moved to another subfamily under the APG III system, or even placed into another family outside of the Asparagaceae.

Asparagaceae under the APG III system!Family!Subfamily!Previous subdivision under the APG II system
AsparagaceaeAgavoideaeAgavaceae
AphyllanthoideaeAphyllanthaceae
AsparagoideaeAsparagaceae (sensu stricto)
ScilloideaeHyacinthaceae
LomandroideaeLaxmanniaceae
NolinoideaeRuscaceae
BrodiaeoideaeThemidaceae

Genera

As of November 2024, the Asparagaceae includes about 119 genera;[7] [8] and these genera contain approximately 3,170 accepted species altogether, although the number of accepted genera and their constituent species varies depending on authority and changes with time. The reference against the subfamily name is to the source which places the genus in that subfamily.

Subfamily! style="text-align:left"
Genus
LomandroideaeAcanthocarpus Lehm.
AgavoideaeAgave L.
ScilloideaeAlbuca L. (sometimes included in Ornithogalum)
ScilloideaeAlrawia (Wendelbo) Perss. & Wendelbo
BrodiaeoideaeAndrostephium Torr.
AgavoideaeAnemarrhena Bunge
AgavoideaeAnthericum L.
AphyllanthoideaeAphyllanthes L.
LomandroideaeArthropodium R.Br.
AsparagoideaeAsparagus Tourn. ex L.
NolinoideaeAspidistra Ker Gawl. (including Antherolophus Gagnep., Colania Gagnep.)
ScilloideaeBarnardia Lindl.
NolinoideaeBeaucarnea Lem. (including Calibanus Rose.)
AgavoideaeBehnia Didr.
ScilloideaeBellevalia Lapeyr. (including Strangweja Bertol.)
AgavoideaeBeschorneria Kunth
BrodiaeoideaeBessera Schult.f. (including Behria)
BrodiaeoideaeBloomeria Kellogg
ScilloideaeBowiea Harv. ex Hook.f. (Climbing Onion, Sea Onion)
ScilloideaeBrimeura Salisb.
BrodiaeoideaeBrodiaea Sm.
AgavoideaeCamassia Lindl.
NolinoideaeCampylandra Baker
LomandroideaeChamaexeros Benth.
ScilloideaeChionodoxa Boiss. (included in Scilla L. by some sources)
AgavoideaeChlorogalum (Lindl.) Kunth
AgavoideaeChlorophytum Ker Gawl.
NolinoideaeComospermum Rauschert
NolinoideaeConvallaria L.
LomandroideaeCordyline Comm. ex R.Br. (including Cohnia Kunth)
NolinoideaeDanae Medik.
BrodiaeoideaeDandya H.E.Moore
NolinoideaeDasylirion Zucc.
ScilloideaeDaubenya Lindl. (including Amphisiphon W.F.Barker, Androsiphon Schltr.)
AgavoideaeDiamena Ravenna
BrodiaeoideaeDichelostemma Kunth (including Brevoortia, Stropholirion)
LomandroideaeDichopogon Kunth (may be included in Arthropodium)
AgavoideaeDiora Ravenna
ScilloideaeDipcadi Medik. (sometimes included in Ornithogalum)
BrodiaeoideaeDipterostemon Rydb.
NolinoideaeDisporopsis Hance
NolinoideaeDracaena Vand. ex L. (including Sansevieria Thunb)[9] [10] [11]
ScilloideaeDrimia Jacq. (including Litanthus Harv., Rhadamanthus Salisb., Rhodocodon Baker, Sypharissa Salisb., Tenicroa Raf., Thuranthos C.H.Wright, Urginea Steinh., Urgineopsis Compton)
ScilloideaeDrimiopsis Lindl. & Paxton (sometimes included in Ledebouria)
AgavoideaeEcheandia Ortega
AgavoideaeEremocrinum M.E.Jones
NolinoideaeEriospermum Jacq.
ScilloideaeEucomis L'Hér.
LomandroideaeEustrephus R.Br.
AgavoideaeFurcraea Vent.
ScilloideaeGaltonia Decne. (included in Ornithogalum L. by some sources)
AgavoideaeHagenbachia Nees & Mart.
AgavoideaeHastingsia S.Watson
AsparagoideaeHemiphylacus S.Watson
AgavoideaeHerreria Ruiz & Pav.
AgavoideaeHerreriopsis H.Perrier
AgavoideaeHesperaloe Engelm. in S.Watson
AgavoideaeHesperocallis A.Gray
AgavoideaeHesperoyucca (Engelm.) Trel. (included in Yucca by some sources)
NolinoideaeHeteropolygonatum M.N.Tamura & Ogisu
AgavoideaeHosta Tratt.
ScilloideaeHyacinthella Schur
ScilloideaeHyacinthoides Heist. ex Fabr. (including Endymion Dumort.)
ScilloideaeHyacinthus Tourn. ex L.
ScilloideaeLachenalia Jacq. ex Murray (including Brachyscypha Baker, Periboea Kunth, Polyxena Kunth)
LomandroideaeLaxmannia R.Br. (including Bartlingia F. Mueller)
ScilloideaeLedebouria Roth (including Resnova van der Merwe)
ScilloideaeLeopoldia Parl.
AgavoideaeLeucocrinum Nutt. ex A.Gray
NolinoideaeLiriope Lour.
LomandroideaeLomandra Labill. (including Xerotes R. Brown)
NolinoideaeMaianthemum F.H.Wigg. (including Oligobotrya Baker, Smilacina Desf.)
AgavoideaeManfreda Salisb. (included in Agave by some sources)
ScilloideaeMassonia Thunb. ex Houtt. (including Neobakeria Schltr., Whiteheadia Harv.)
ScilloideaeMerwilla Speta
BrodiaeoideaeMilla Cav. (including Diphalangium)
BrodiaeoideaeMuilla S.Watson ex Benth.
LomandroideaeMurchisonia Brittan
ScilloideaeMuscari Mill. (including Botryanthus Kunth, Muscarimia Kostel., Pseudomuscari Garbari & Greuter)
NolinoideaeNolina Michx.
NolinoideaeOphiopogon Ker Gawl.
ScilloideaeOrnithogalum L. (including Battandiera Maire, Elsiea F.M.Leight., Neopatersonia Schonl.)
ScilloideaeOziroe Raf. (including Fortunatia J.F.Macbr.)
AgavoideaeParadisea Mazzuc.
NolinoideaePeliosanthes Andrews
BrodiaeoideaePetronymphe H.E.Moore
AgavoideaePolianthes L. (included in Agave by some sources)
NolinoideaePolygonatum Mill.
AgavoideaeProchnyanthes S.Watson
ScilloideaeProspero Salisb.
ScilloideaePseudogaltonia (Kuntze) Engl. (sometimes included in Ornithogalum)
ScilloideaePseudoprospero Speta
ScilloideaePuschkinia Adams
NolinoideaeReineckea Kunth
NolinoideaeRohdea Roth (including Gonioscypha Baker)
LomandroideaeRomnalda P.F.Stevens
NolinoideaeRuscus L.
ScilloideaeSchizobasis Baker (sometimes included in Drimia)
ScilloideaeSchizocarphus van der Merwe
AgavoideaeSchoenolirion Durand
ScilloideaeScilla L.
NolinoideaeSemele Kunth
LomandroideaeSowerbaea Sm.
NolinoideaeSpeirantha Baker
ScilloideaeSpetaea Wetschnig & Pfosser
NolinoideaeTheropogon Maxim.
LomandroideaeThysanotus R.Br.
LomandroideaeTrichopetalum Lindl. (including Bottinaea Colla)
BrodiaeoideaeTriteleia Douglas ex Lindl. (including Hesperoscordium, Themis)
BrodiaeoideaeTriteleiopsis Hoover
NolinoideaeTupistra Ker Gawl. (including Campylandra Baker, Tricalistra Ridl.)
ScilloideaeVeltheimia Gled.
LomandroideaeXerolirion A.S.George
AgavoideaeYucca L. (including Samuela)
BrodiaeoideaeXochiquetzallia J.Gut

Obsolete genera or species formerly included in the Asparagaceae

Calibanus was a former genus that was placed in the Asparagaceae (Nolinoideae subfamily) when the APG III system was introduced.[12] Both members of the genus have since been transferred to the genus Beaucarnea (also a member of the Asparagaceae (Nolinoideae subfamily)) after molecular phylogenetic research demonstrated a strong phylogenetic relationship with species of Beaucarnea.[13] [14]

Sansevieria was a long recognised genus belonging to the Nolinoideae subfamily but on the basis of molecular phylogenetic studies, the species formerly including as belonging to the genus have been transferred to the genus Dracaena (also included in the Noliniodeae subfamily).

Bibliography

External links

Notes and References

  1. Book: Bramley, Gemma . The Kew temperate plant families identification handbook . Trias-Blasi . Anna . Wilford . Richard . 2023 . Kew publishing, Royal botanic gardens . 978-1-84246-772-5 . Kew, United Kingdom.
  2. Web site: Asparagaceae Juss. Plants of the World Online Kew Science . 2024-11-29 . Plants of the World Online . en.
  3. https://www.ipni.org/n/30275682-2 Asparagaceae Juss.,
  4. April 2003 . An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II . Botanical Journal of the Linnean Society . 141 . 4 . 399–436 . 10.1046/j.1095-8339.2003.t01-1-00158.x . 0024-4074.
  5. Rudall . PAULA J. . Conran . JOHN G. . Chase . MARK W. . 2000-09-01 . Systematics of Ruscaceae/Convallariaceae: a combined morphological and molecular investigation . Botanical Journal of the Linnean Society . 134 . 1 . 73–92 . 10.1006/bojl.2000.0365 . 0024-4074.
  6. Chase . Mark W. . Reveal . James L. . Fay . Michael F. . October 2009 . A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae . Botanical Journal of the Linnean Society . 161 . 2 . 132–136 . 10.1111/j.1095-8339.2009.00999.x . 0024-4074.
  7. Web site: Asparagaceae Juss. Plants of the World Online Kew Science . 2024-11-29 . Plants of the World Online . en.
  8. Web site: Family Asparagaceae; WFO Plant List World Flora Online . 2024-11-29 . wfoplantlist.org.
  9. Web site: Sansevieria Thunb. Plants of the World Online Kew Science . 2024-11-29 . Plants of the World Online . en.
  10. Takawira-Nyenya . Ratidzayi . Thiede . Joachim . Mucina . Ladislav . 2021-11-09 . New nomenclatural and taxonomic adjustments in Dracaena (Asparagaceae) . Phytotaxa . en . 524 . 4 . 293–300 . 10.11646/phytotaxa.524.4.5 . 1179-3163.
  11. Ghoshal, P.P., Chakrabarty, T., Kumar, A. & Dey, S. (2021). Conspectus of the genus Dracaena (Asparagaceae) in the Indo-Burmese region. Journal of Economic and Taxonomic Botany 45: 20-32.
  12. Calibanus. Kew Plants of the World Online https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:297730-2
  13. Molecular phylogenetics and morphology of Beaucarnea (Ruscaceae) as distinct from Nolina, and the submersion of Calibanus into Beaucarnea (2014). Rojas-Piña, V., Olson, M.E., Alvarado-Cárdenas, L.O. & Eguiarte, L.E.. Taxon 63: 1193-1211. [Cited as Beaucarnea.]
  14. Web site: Beaucarnea Lem. Plants of the World Online Kew Science . 2024-11-29 . Plants of the World Online . en.