Chiba University Matsudo/Kashiwa Campus Plant Database

ID: 644

Genus ja: リュウゼツラン

Genus en:

# spp.: 225 (from genus_families table) | 66 (from names table)

Accepted: Accepted

Family: Asparagaceae

Family ja: キジカクシ

Infra familial classification: Subfamily Agavoideae

Distribution en: SW. & S. Central U.S.A. to Venezuela, S. Florida to Caribbean

Description en: Genus of more than 200 species of rosette-forming, perennial or mono-carpic succulents from desert and mountain regions of North, Central, and South America, and the West Indies, The leaves are often rigid and fleshy, usually having sharp terminal spines and toothed margins. The funnel-shaped, short-tubed flowers, each with 6 tepals, are borne in umbel-like clusters, racemes or panicles on leafless stems from the centres of the rosettes. The ovoid or spherical, capsular fruits contain numerous flat black seeds. In most species, the rosettes die after flowering and fruiting, leaving offsets to mature and flower in subsequent years. In frost-prone areas, grow in a cool or temperate greenhouse; in frost-free areas, grow as specimen plants.

Hardiness en: Half hardy to frost tender.

Cultivation en:

Propagation en: Sow seed at 2l°C (70°F) in early spring. Remove offsets In spring or autumn; if already rooted, treat as mature plants. Insert unrooted offsets, or plantlets of A. americana and other species in a mix of equal parts peat and sharp sand until rooted.

Pests en: Prone to scale insects, particularly on young growth.

Description ja:

Comment:

Comment ja: Jiménez-Barron (2020) の分析では(Paleoagave_bracteosa,(Paraagave_ellemeetiana,(Echinoagave,(Manfreda_clade,Agave_s.s.))))Agave_s.l. の系統樹が得られ、Paleoagave, Paraagave, Echinoagaveの記載の元となった。Manfreda cladeはPolianthes, Prochnyanthesを含み、POWOではこれら3属を認めている。

Type species:

Phylogenetic definition:

Update information: Created: 2007-12-06 12:51; Updated: 2026-03-03 21:57 by hkokubun@mac.com