Brighamia
Genus of bellflowers
From Wikipedia, the free encyclopedia
Brighamia is a genus of plants in the family Campanulaceae endemic to Hawaii.[2]
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| Brighamia | |
|---|---|
| |
| Brighamia insignis flowers | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Embryophytes |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Campanulaceae |
| Subfamily: | Lobelioideae |
| Genus: | Brighamia |
| Type species | |
| Brighamia insignis A.Gray[1] | |
| Species | |
|
See here | |
 | |
It is endemic to Hawaii[2] | |
Description
Vegetative characteristics
Brighamia are 1–2.5(–5) m tall, cremnophytic, halophytic, perennial, succulent, caudiciform plants with thick, mostly unbranched stems[3] bearing numerous obovate, sessile or petiolate, nearly entire, rosette-like leaves at the apex of the stem.[1] The stem and foliage produce latex.[1]
Generative characteristics
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The axillary racemes bear white or yellow, fragrant, tubular, flowers.[1]
Taxonomy
It was described by Asa Gray in 1867[4] with Brighamia insignis A.Gray as the type species.[1]
Species
The genus has two species:[2]
- Brighamia insignis A.Gray
- Brighamia rockii H.St.John
Distribution and habitat
The genus is endemic to Hawaii.[2]
Conservation
Brighamia species are threatened by extinction, as Brighamia rockii is Critically Endangered (CR)[5] and Brighamia insignis is already Extinct in the Wild (EW).[6] Both Brighamia rockii[7] and Brighamia insignis are kept in ex-situ collections in botanic gardens.[8] Brighamia insignis is also cultivated as a house plant.[9] The Brighamia insignis in cultivation have only limited genetic diversity.[10]