Aloe piransii - Aloe piransii

… They can be roughly divided into two groups: stemless and stemmed. The former includes small species such as A. haworthioides Bak., which has a stem diameter of about 10 cm, while the latter includes many large species that grow solitary and like trees. Representative species include A. bainesii Th.Dyer, which can grow up to 20 m in height, A. dichotoma L., which has a trunk diameter of over 1 m in old plants, and A. pillansii L., which is similar but has few branches. The leaves of all species are fleshy, usually developing into a rosette shape, and have sawtooth edges, but a few species also have thorn-like projections on the upper and lower surfaces of the leaves. …

*Some of the terminology that mentions "Aloe piransii" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…　無茎種と有茎種の2群に大別でき，前者には株の直径が10cmくらいのアロエ･ハウォルティオイデスA.haworthioides Bak.のような小型種も見られ，後者には単生し樹木状に育つ大型種が少なくない。その代表種には高さが20mにもなるアロエ･バイネシイA.bainesii Th.Dyer，古株では幹の直径が1mを超すアロエ･ディコトマA.dichotoma L.，同様で分枝の少ないアロエ･ピランシイA.pillansii L.などがある。葉はいずれも多肉質で，ふつうはロゼット状に展開し，葉縁に鋸歯をもつが，少数の種はさらに葉の表や裏面にもとげ状の突起を有する。…

※「アロエ・ピランシイ」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報