Contents
Description
Dolichorrhiza is a genus of flowering plants in the family Orchidaceae. This genus is native to China and Southeast Asia, and it includes about 20 species of terrestrial orchids. The name Dolichorrhiza comes from the Greek words “dolicho” meaning long and “rhiza” meaning root. This refers to the long and fleshy roots that are typical of this genus.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Liliopsida |
| Order | Asparagales |
| Family | Orchidaceae |
| Genus | Dolichorrhiza |
Appearance
Dolichorrhiza plants have long and fleshy roots that are brown in color. The stems are erect and can grow up to 50cm in height. The leaves are green and lance-shaped, and they grow in a rosette at the base of the stem. The flowers are borne on a long and slender inflorescence, and they are typically pink or purple in color. The flowers have a tubular shape and are about 1.5cm in diameter.
Care Guide
Water: Dolichorrhiza plants prefer to be kept evenly moist, but not waterlogged. Water them once a week, or more frequently if they are growing in a warm and dry environment.
Fertilization: Feed Dolichorrhiza plants with a balanced fertilizer once a month during the growing season. Do not fertilize during the dormant period.
Soil: Dolichorrhiza plants prefer a well-draining soil that is rich in organic matter. A mixture of peat moss, perlite, and bark works well.
Sunlight: Dolichorrhiza plants prefer bright, indirect light. Avoid direct sunlight, as it can burn the leaves.
Hardiness Zones: Dolichorrhiza plants are hardy in USDA hardiness zones 9 to 11.
Common Pests & Diseases
Dolichorrhiza plants are susceptible to spider mites, mealybugs, and scale insects. These pests can be controlled with insecticidal soap or neem oil. Dolichorrhiza plants are also prone to fungal diseases such as root rot and leaf spot. These diseases can be prevented by keeping the soil well-drained and avoiding overwatering.
Habitat
Dolichorrhiza plants are native to China and Southeast Asia. They grow in a variety of habitats, including forests, grasslands, and rocky slopes. They prefer well-drained soils and can tolerate both sunny and shaded conditions.
Question and Answer
Q: Can Dolichorrhiza plants be grown indoors?
A: Yes, Dolichorrhiza plants can be grown indoors as long as they are provided with bright, indirect light and a well-draining soil mix.
Q: How often should I water my Dolichorrhiza plant?
A: Dolichorrhiza plants prefer to be kept evenly moist, but not waterlogged. Water them once a week, or more frequently if they are growing in a warm and dry environment.
Q: What is the best temperature for Dolichorrhiza plants?
A: Dolichorrhiza plants prefer temperatures between 18°C and 27°C. They can tolerate higher temperatures, but they will require more frequent watering.
Q: How can I propagate my Dolichorrhiza plant?
A: Dolichorrhiza plants can be propagated by dividing the rhizomes in the spring. Each division should have at least one stem and a few healthy roots.
Related Plants
- Cymbidium
- Paphiopedilum
- Phalaenopsis
- Vanda
References
- “Dolichorrhiza”. World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 16 October 2021.
- “Dolichorrhiza”. The Plant List. Retrieved 16 October 2021.
- “Dolichorrhiza”. Orchids Wiki. Retrieved 16 October 2021.
