Idria columnaris (English spelling)

...These are completely different plant groups in terms of phylogeny, and succulence has occurred independently. Representative families that are almost entirely composed of succulents include Crassulaceae (35 genera, 1,300 species), Bulidaceae (130 genera, 2,000 species, including the genus Lithops and the genus Lampranthus ), Portulacaceae (16 genera, 500 species, including 50 species of Anacampseros , 30 species of Portulaca , and 20 species of Lewisia ), and Didiereaceae (4 genera, 11 species, including 2 species of Didierea and 6 species of Alluaudia ). Families or genera in which the majority or part are succulents include the Asclepiadaceae family ( Stapelia , Caralluma , Hoodia , Trichocaulon ), Ceropegia , Hoya , and 28 genera (700 species), the Liliaceae family ( Aloe , Haworthia , Gasteria , and others), the Euphorbia family (500 succulent species), the Monadenium family (50 species), the Jatropha family (10 species), the Agave family (300 species), the Nolina family (25 species), and the Yucca family (10 species). These include 485 species in 7 genera, including Pachypodium (20 species) in the Apocynaceae family, Adenium (12 species), Senecio succulents (80 species) in the Asteraceae family, Othonna (40 species), Cissus (15 species) in the Vitaceae family, Peperomia (over 100 species) in the Piperaceae family, Salicornia (30 species) in the Chenopodiaceae family, Sarcocaulon (12 species) in the Geraniaceae family, Adenia (20 species) in the Passifloaceae family, Xerosicyos (2 species) in the Cucurbitaceae family, and Idria columnaris Kellog. in the Phauciaceae family.
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Many succulents grow in arid or semi-desert areas and are shaped in such a way that they store water in their bodies during periods of heavy rainfall and then use that water during the drier periods.

*Some of the terminology that mentions "Idria columnaris" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…系統的にはまったく異なった植物群で，独立的に多肉化が起こっていて，ほぼ全種が多肉植物で構成される代表的な科には，ベンケイソウ科(35属1300種)，ツルナ科(リトープス属Lithops，マツバギク属Lampranthusなど130属2000種)，スベリヒユ科(アナカムプセロス属Anacampseros50種，スベリヒユ属Portulaca30種，レビシア属Lewisia20種など16属500種)，ディディエレア科(ディディエレア属Didierea2種，アルアウディア属Alluaudia6種など4属11種)がある。科か属の大多数あるいは一部が多肉植物であるものには，ガガイモ科のスタペリア類(スタペリア属Stapelia，カラルマ属Caralluma，ホオディア属Hoodia，トリコカウロン属Trichocaulon)，セロペギア属Ceropegia，サクララン属Hoyaなど28属700種，ユリ科のアロエ類(アロエ属Aloe，ハウォルティア属Haworthia，ガステリア属Gasteriaなど)，トウダイグサ科のユーフォルビア属Euphorbia(多肉種500種)，モナデニウム属Monadenium(50種)，ヤトロファ(ナンヨウアブラギリ)属Jatropha(10種)，リュウゼツラン科のリュウゼツラン属Agave(300種)，トックリラン属Nolina(25種)，ユッカ(キミガヨラン)属Yucca(60種)など7属485種，キョウチクトウ科のパキポジウム属Pachypodium(20種)，アデニウム属Adenium(12種)，キク科の多肉セネシオ類(80種)，オトンナ属Othonna(40種)，ブドウ科のシッサス属Cissus(15種)，コショウ科のペペロミア属Peperomia(100種以上)，アカザ科のアッケシソウ属Salicornia(30種)，フウロソウ科のサルコカウロン属Sarcocaulon(12種)，トケイソウ科のアデニア属Adenia(20種)，ウリ科のクセロシキオス属Xerosicyos(2種)，フォウキエリア科の観峰玉（かんぽうぎよく）Idria columnaris Kellog.などがある。
［形態］
　多肉食物は乾燥地や半砂漠地帯に生えるものが多く，降雨の多い時期に体内に水分を蓄え，乾燥期にその水分を利用するような形態をしている。…

※「Idria columnaris」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。

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