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Description
Psoralea Linearifolia, commonly known as the slender-leaf pea, is a perennial herb that belongs to the pea family (Fabaceae). It is native to South Africa and is commonly found in grasslands and savannas. The plant has a woody rootstock and can grow up to 1 meter tall. It produces small white or pink flowers that bloom from spring to summer.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Fabales |
| Family | Fabaceae |
| Genus | Psoralea |
Appearance
The slender-leaf pea has slender leaves that are about 5-15 cm long and 1-2 mm wide. The leaves are linear and have a dark green color. The plant produces small white or pink flowers that are about 1 cm in length. The flowers are arranged in a spike-like inflorescence that is about 10-15 cm long. The plant has a woody rootstock and can grow up to 1 meter tall.
Care Guide
The slender-leaf pea is a hardy plant that is easy to care for. Here are some tips for caring for this plant:
- Water: The plant prefers well-draining soil and can tolerate drought. Water the plant regularly but do not overwater it.
- Fertilization: Fertilize the plant with a balanced fertilizer during the growing season.
- Soil: The plant prefers well-draining soil that is rich in organic matter.
- Sunlight: The plant prefers full sun but can tolerate partial shade.
- Hardiness Zones: The plant is hardy in USDA zones 8-11.
Common Pests & Diseases
The slender-leaf pea is generally not susceptible to many pests and diseases. However, it may be affected by the following:
- Aphids: These pests can cause stunted growth and distorted leaves. Use insecticidal soap to control them.
- Root rot: Overwatering can cause root rot. Make sure the soil is well-draining and do not overwater the plant.
Habitat
The slender-leaf pea is native to South Africa and is commonly found in grasslands and savannas. It prefers well-draining soil and can tolerate drought.
Question and Answer
Q: Can the slender-leaf pea be grown in containers?
A: Yes, the slender-leaf pea can be grown in containers as long as the container has good drainage and the plant is not overwatered.
Q: Is the slender-leaf pea a good plant for attracting pollinators?
A: Yes, the slender-leaf pea produces flowers that attract pollinators such as bees and butterflies.
Q: Does the slender-leaf pea require pruning?
A: The slender-leaf pea does not require pruning but can be pruned to maintain its shape.
Q: Can the slender-leaf pea tolerate frost?
A: No, the slender-leaf pea is not frost-tolerant and should be protected from frost.
Related Plants
- Psoralea pinnata
- Psoralea cataracta
- Psoralea pinnatifida
References
- “Psoralea Linearifolia.” PlantZAfrica, www.plantzafrica.com/plantnop/psorlinear.htm.
- “Psoralea Linearifolia (Fabaceae) Slender-Leaf Pea.” South African National Biodiversity Institute, www.sanbi.org/plant-of-the-week/psoralea-linearifolia-fabaceae-slender-leaf-pea/.
