Pogostemon helferi
| Pogostemon helferi | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Pogostemon |
| Species: | P. helferi
|
| Binomial name | |
| Pogostemon helferi Hook.f.
| |
Pogostemon helferi, also known as dao-noi, is a species of Thai aquatic plant. It is a common ornamental plant in aquariums.
Taxonomy
[edit]The type locality is Sangkhla Buri district, Kanchanaburi, Thailand.[1]
Distribution
[edit]Pogostemon helferi is distributed across Myanmar and western Thailand.[2] A 2005 survey conducted in Thailand found the species in north, north-east, east, and west Thailand. However, a 2007 survey found the species only in the Kanchanaburi province, found near Myanmar.[2] A 2024 review found the species distribution extending to the Indian Himalayan Region.[3]
Because of the high demand for the plants in aquarium trade, the species has been declining in population in its natural habitat, with local extinction emerging as a possibility.[2]
Description
[edit]Pogostemon helferi is a common ornamental plant. It is commonly known by its local name, dao-noi, meaning "little star". It is a popular plant in aquariums, and is of high demand in the aquarium trade. As of 2016, the economic value of the production of the species was valued at ฿252,000 whilst the annual market demand was more than ฿500,000.[2]
The species has dimorphic leaves, two distinct types, the first being emerged, which are less durable, and submerged.[4] It has irregularly shaped epidermis cells.[1] Most stocks of the species are harvested from the wild.[2]
References
[edit]Citations
[edit]- ^ a b Pramali, Bongcheewin & Traiperm 2018, p. 251.
- ^ a b c d e Wangwibulkit & Vajrodaya 2016, p. 20.
- ^ Fahira, Harnelly & Zumaidar 2024, p. 10.
- ^ Pramali, Bongcheewin & Traiperm 2018, p. 257.
Works cited
[edit]- Fahira, Cut Nathasya; Harnelly, Essy; Zumaidar (25 August 2024). "Complete Chloroplast Genome, Distribution, and Pharmacological Activities Pogostemon: A Mini Review". Jurnal Penelitian Pendidikan IPA. 10 (SpecialIssue): 7–18. doi:10.29303/jppipa.v10iSpecialIssue.7048. ISSN 2407-795X. Retrieved 9 May 2025.
- Pramali, Kanjana; Bongcheewin, Bhanubong; Traiperm, Paweena (2018). "Leaf micromorphological adaptation of Pogostemon spp. (section Eusteralis) in Thailand". Agriculture and Natural Resources. 52 (3): 250–258. doi:10.1016/j.anres.2018.09.002.
- Wangwibulkit, Maneerat; Vajrodaya, Srunya (1 January 2016). "Ex-situ propagation of Pogostemon helferi (Hook. f.) Press using tissue culture and a hydroponics system". Agriculture and Natural Resources. 50 (1): 20–25. doi:10.1016/j.anres.2015.11.001. ISSN 2452-316X.