Contents
Description
Silphium Asteriscus Var. Trifoliatum is a native plant of the southeastern United States. It is also known as the starry rosinweed, and it belongs to the sunflower family. This plant is a perennial herb that can grow up to 5 feet tall. It produces yellow flowers that bloom from July to September. This plant has many medicinal properties and has been used by Native Americans for centuries.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Silphium |
Appearance
Silphium Asteriscus Var. Trifoliatum has a sturdy stem that is covered with fine hairs. Its leaves are trifoliate and can grow up to 10 inches long. The leaves are alternate and have serrated edges. The flowers of this plant are bright yellow and are about 2 inches in diameter. The flowers are produced in clusters at the top of the stem. The plant produces small, black seeds that are about 1/8 inch long.
Care Guide
Silphium Asteriscus Var. Trifoliatum is a hardy plant that requires minimal care. It prefers well-drained soil and full sun. It can tolerate drought conditions and is resistant to pests and diseases. This plant does not require fertilizer, but a light application of compost or organic matter in the spring can improve its growth. Water this plant only when the soil is dry to the touch. This plant is hardy in zones 5-9.
Common Pests & Diseases
Silphium Asteriscus Var. Trifoliatum is resistant to pests and diseases. However, it can be affected by powdery mildew, which can be treated with a fungicide. Aphids and spider mites can also infest this plant, but they can be controlled with insecticidal soap.
Habitat
Silphium Asteriscus Var. Trifoliatum is native to the southeastern United States and can be found in meadows, prairies, and open woods. It prefers well-drained soil and full sun.
Question and Answer
Q: Can Silphium Asteriscus Var. Trifoliatum grow in shade?
A: No, this plant prefers full sun.
Q: Does Silphium Asteriscus Var. Trifoliatum attract pollinators?
A: Yes, this plant attracts bees, butterflies, and other pollinators.
Q: Is Silphium Asteriscus Var. Trifoliatum drought-tolerant?
A: Yes, this plant can tolerate drought conditions.
Q: Can Silphium Asteriscus Var. Trifoliatum be grown in containers?
A: No, this plant requires a lot of space to grow.
Related Plants
- Silphium integrifolium
- Silphium laciniatum
- Silphium perfoliatum
- Silphium terebinthinaceum
References
- USDA Plants Database. (2021). Silphium asteriscus var. trifoliatum. Retrieved from https://plants.usda.gov/home/plantProfile?symbol=SIAS4
- Illinois Wildflowers. (n.d.). Silphium asteriscus var. trifoliatum. Retrieved from https://www.illinoiswildflowers.info/prairie/plantx/st_rosinweedx.html
- Missouri Botanical Garden. (2021). Silphium asteriscus var. trifoliatum. Retrieved from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=282618&isprofile=0&cv=1
