Raoulia tenuicaulis
| Raoulia tenuicaulis | |
|---|---|
| |
| Raoulia tenuicaulis in Nelson Lakes National Park | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Raoulia |
| Species: | R. tenuicaulis
|
| Binomial name | |
| Raoulia tenuicaulis | |
Raoulia tenuicaulis, known as the tutahuna in Te reo or mat daisy,[2] is a species of flowering plant, endemic to New Zealand.[3] It is the most widespread Raoulia, and grows mainly in riverbeds.[4]
Description
[edit]A small shrub that grows on mats in river-beds. It forms mats up to 1m in size.[5]
Distribution and habitat
[edit]Raoulia tenuicaulis is known from across New Zealand, on both the North and South Island. It thrives in stony riverbeds in both montane and lowland regions.[5]
It is not considered threatened in its range.[1]
Ecology
[edit]Raoulia tenuicaulis is known to host Cuscuta epythymum.[6]
Etymology
[edit]tenuicaulis means 'thin-stem' in Latin.[2] The description also includes the note that it is thin-stemmed, so presumably this is why the name was chosen.[5]
Taxonomy
[edit]Raoulia tenuicaulis contains the following varieties:
- Raoulia tenuicaulis var. tenuicaulis[3]
- Raoulia tenuicaulis var. dimorpha[3]
- Raoulia tenuicaulis var. pusilla[3]
However, these are suspect, as the form can change with the growth pattern.[4]
The type series is uncertain, but a lectotype was gathered by William Colenso in 1863.[5]
References
[edit]- ^ a b "NZTCS". nztcs.org.nz. Retrieved 2025-02-26.
- ^ a b "Raoulia tenuicaulis". New Zealand Plant Conservation Network. Retrieved 2025-02-26.
- ^ a b c d "mat daisy (Raoulia tenuicaulis)". iNaturalist NZ. Retrieved 25 February 2025.
- ^ a b Ward, JM (1981). Numerical phenetics and the classification of Raoulia (Gnaphaliinae-Compositae). University of Canterbury.
- ^ a b c d "Raoulia tenuicaulis Hook.f. - Flora of New Zealand Series". Flora of New Zealand Series. Retrieved 2025-02-26.
- ^ "Raoulia tenuicaulis Hook.f. - Biota of NZ". biotanz.landcareresearch.co.nz. Archived from the original on 2025-01-24. Retrieved 2025-02-26.
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