Notothlaspi australe
| Notothlaspi australe | |
|---|---|
| Notothlaspi australe in Kahurangi National Park | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Notothlaspi |
| Species: | N. australe
|
| Binomial name | |
| Notothlaspi australe Hook.f.
| |
Notothlaspi australe is a species of alpine Brassicaceae from New Zealand.[1][2] These species are often called penwipers, which can apply as a generic term for this species as well.[3] It is endemic to the South Island of New Zealand.[4]
Description
Notothlaspi australe is a small plant, with radiating leaves from a central stem. The leaves have a small pointed tip, and are green to brown. They are "3.0–6.5 mm wide, ovate to broadly ovate and with 1–6 teeth". The form is prostrate.[5]
The flowers are small and white, with a single flower forming from the axil of the uppermost stem. Young plants may form a single rosette, but with time these will branch out to form multiple, matted rosettes.[5]
Notothlaspi australe is perennial, unlike Notothlaspi rosulatum.[5]
Distribution and habitat
Notothlaspi australe is known exclusively on to the northern mountain ranges of the South Island of New Zealand,[5] where it is present in alpine and subalpine habitats.[6] Notothlaspi australe does not tend to live on the subranges that are composed of ultramafic rock like Maungakura / Red Hill, where the newly described Notothlaspi viretum dominates instead.[5]
Ecology
Notothlaspi australe is one of the few species that lives in plant communities on barren alpine rock and scree fields, along with plants like Anistome imbricata, Dracophyllum pronum, Veronica pulvinaris, and grasses like Poa colensoi.[7][8]
Taxonomy and etymology
Notothlaspi australe contains the following varieties:
The type specimen is from Gordon's Knob, in Nelson, New Zealand.[4] The species name australe comes from the Latin adjective australis, and means 'southern'.[10]
Conservation
Notothlaspi australe is considered Not Threatened, but it has two qualifiers attached, DPS and DPT, both of which indicate that more data is needed for this species.[11]
References
- ^ a b "Notothlaspi australe". New Zealand Plant Conservation Network. Retrieved 2025-02-08.
- ^ "Notothlaspi australe (Hook.f.) Hook.f. - Biota of NZ". biotanz.landcareresearch.co.nz. Archived from the original on 2024-07-30. Retrieved 2025-02-08.
- ^ "penwiper, Notothlaspi australe Hook.f. | Collections Online - Museum of New Zealand Te Papa Tongarewa". Collections Online - Museum of New Zealand Te Papa Tongarewa. Retrieved 2025-02-08.
- ^ a b "Notothlaspi australe (Hook.f.) Hook.f. - Flora of New Zealand Series". Flora of New Zealand Series. Retrieved 2025-02-09.
- ^ a b c d e Heenan, Peter B. (2019-03-27). "A taxonomic revision of Notothlaspi (Brassicaceae), a specialist alpine genus from New Zealand". Phytotaxa. 399 (3): 248–260. doi:10.11646/phytotaxa.399.3.7. ISSN 1179-3163.
- ^ "Notothlaspi australe (Hook.f.) Hook.f. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2025-02-08.
- ^ "Granitic sand plains". Manaaki Whenua. Retrieved 2025-02-08.
- ^ "Granitic gravel fields". Manaaki Whenua. Retrieved 2025-02-08.
- ^ a b "Notothlaspi australe". iNaturalist. Retrieved 8 February 2025.
- ^ "Australis - Logeion". logeion.uchicago.edu. Retrieved 2025-02-15.
- ^ "NZTCS". nztcs.org.nz. Retrieved 2025-02-15.