Contents
Description
Asplenium Obtusatum Subsp. Northlandicum, also known as the Limestone spleenwort, is a species of fern that belongs to the Aspleniaceae family. This fern is native to New Zealand and is commonly found growing in limestone rock crevices or on cliff faces. It is a small fern that can grow up to 25 cm in height and 15 cm in width, with fronds that are typically triangular-shaped and pinnate.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Pteridophyta |
| Class | Polypodiopsida |
| Order | Polypodiales |
| Family | Aspleniaceae |
| Genus | Asplenium |
Appearance
The Asplenium Obtusatum Subsp. Northlandicum has unique triangular-shaped fronds that are a blue-green color with a glossy texture. These fronds can grow up to 25 cm in height and 15 cm in width, with a pinnate structure. The fern’s spores are located on the underside of the fronds and are arranged in linear sori that are protected by an indusium.
Care Guide
Water: The Asplenium Obtusatum Subsp. Northlandicum requires consistent moisture, but not waterlogged soil. Watering frequency should be adjusted depending on the humidity level and temperature of the environment.
Fertilization: This fern does not require frequent fertilization, but can benefit from a balanced fertilizer once or twice a year.
Soil: The Asplenium Obtusatum Subsp. Northlandicum prefers well-draining soil that is rich in organic matter.
Sunlight: This fern prefers bright, indirect light and can tolerate some direct sunlight during the morning or late afternoon.
Hardiness Zones: The Asplenium Obtusatum Subsp. Northlandicum is hardy in USDA zones 9-11.
Common Pests & Diseases
The Asplenium Obtusatum Subsp. Northlandicum is generally resistant to pests and diseases. However, it can be susceptible to scale insects or mealybugs. To prevent these pests, regularly inspect the fern and remove any infested leaves or stems. If an infestation occurs, it can be treated with an insecticidal soap or neem oil.
Habitat
The Asplenium Obtusatum Subsp. Northlandicum is native to New Zealand and can be found growing in limestone rock crevices or on cliff faces. It prefers a cool, moist environment with bright, indirect light.
Question and Answer
Q: Can the Asplenium Obtusatum Subsp. Northlandicum be grown indoors?
A: Yes, this fern can be grown indoors as long as it is placed in a bright, indirect light and kept consistently moist.
Q: Can the Asplenium Obtusatum Subsp. Northlandicum be propagated?
A: Yes, this fern can be propagated through division or by spores.
Q: What is the ideal temperature range for the Asplenium Obtusatum Subsp. Northlandicum?
A: This fern prefers a cool environment with temperatures ranging from 50-75°F (10-24°C).
Q: How often should the Asplenium Obtusatum Subsp. Northlandicum be repotted?
A: This fern should be repotted every 1-2 years, or when the roots become overcrowded.
Related Plants
- Asplenium scolopendrium
- Asplenium nidus
- Asplenium trichomanes
- Asplenium bulbiferum
References
- “Asplenium obtusatum subsp. northlandicum”. New Zealand Plant Conservation Network. Retrieved 2021-03-09.
- “Asplenium obtusatum subsp. northlandicum”. Royal New Zealand Institute of Horticulture. Retrieved 2021-03-09.
- “Limestone Spleenwort”. American Fern Society. Retrieved 2021-03-09.
