(Upload on December 21 2015) [ 日本語 | English ]

Agave americana L.

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

⇒ Engler's syllabus (エングラー体系)

Agavaceae (リュウゼツラン)

Cronquist: Liliaceae
Sometimes separated into more families
Agave, Beschorneria, Furcraea, Hesperaloe, Littaea, Manfreda, Polianthes, Prochnyanthes, Yucca
Doryanthaceae → established by APG
Dracaenaceae → merged into Asparagaceae by APG III
Dracaena, Sanseviera
Phormiaceae → merged into Hemerocallidaceae (キスゲ) → into Xanthorrhoeaceae (ススキノキ) by APG III
Agrostocrinum, Corynotheca, Dianella, Excremis, Phormium, Stypandra, Thelionema
Asteliaceae → established by APG
Cordyline, Astelia, Collospermum, Milligania, Neoastelia
Nolinaceae (スズラン) → merged into Asparagaceae by APG III
Beaucarnea, Nolina, Dasylirion

Distribution: arid regions in tropical and subtropical zones (no native species in Japan)

Agave L. (リュウゼツラン) in Japan

A. americana L. (アオノリュウゼツラン)
A. attenuata Salm-Dyck (ハツミドリ)
A. fourcroydes Lem. (ヘネケン)
A. potatorum Zucc. (ライジン)
A. sisalana Perrine ex Engelm. (サイザル)
A. stricta Salm-Dyck (フキアゲ)
A. tequilana Weber (テキーラーリュウゼツラン)
A. victorae-reginae T. Moore (ササノユキ)

Agave americana in Japan

Aonoryuuzetsuran (アオノリュウゼツラン, 青ノ龍舌蘭), centuryplant or American aloe
Life form: succulent, evergreen, perennial forb ≈ 3 m tall (real longevity is 10-30 years)
Distribution: Mexico, Arizona, and Texas
Habitat: various habitats, e.g., cliffs, urban areas, woodlands, grasslands, riparian zones, beaches and sandy areas, and rocky slopes
Leaf: characterized by gray-green
Use: ornamental (drought-tolerant)
cv. marginata (リュウゼツラン), with yellow stripes along the margins of each leaf

[1-3] in Hama-rikyu Gardens, Tokyo, on November 13 2015.