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Description
Grindelia Squarrosa, commonly known as Curly-cup gumweed, is a perennial plant that belongs to the Asteraceae family. This plant is native to North America and is commonly found in states such as Arizona, New Mexico, Utah, and Colorado. The plant is characterized by its yellow flowers and resinous leaves, which have been used for medicinal purposes for centuries by Native American tribes.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Grindelia |
Appearance
Grindelia Squarrosa can grow up to 3 feet tall and 2 feet wide. The plant has a bushy appearance with numerous stems that are covered with glandular hairs. The leaves are alternate, lanceolate, and have a serrated margin. The flowers are yellow and have a daisy-like appearance with a prominent central disk. The plant blooms from June to September and produces small, oval-shaped fruits.
Care Guide
Grindelia Squarrosa is a hardy plant that requires minimal care. Here are some tips to help you care for your plant:
- Water: The plant is drought-tolerant and does not require frequent watering. Water only when the soil is dry.
- Fertilization: The plant does not require fertilization. However, you can add a slow-release fertilizer in the spring to encourage growth.
- Soil: The plant prefers well-draining soil that is rich in organic matter.
- Sunlight: The plant thrives in full sun but can tolerate partial shade.
- Hardiness Zones: Grindelia Squarrosa can grow in hardiness zones 4-9.
Common Pests & Diseases
Grindelia Squarrosa is relatively pest and disease-resistant. However, it can be affected by spider mites and leaf spot diseases. Here are some tips to help you prevent and treat these issues:
- Spider Mites: Keep the plant well-watered and regularly spray it with water to deter spider mites. You can also use insecticidal soap to treat infestations.
- Leaf Spot Diseases: Avoid overhead watering and remove infected leaves to prevent the spread of the disease. You can also use a copper-based fungicide to treat the disease.
Habitat
Grindelia Squarrosa is commonly found in dry, rocky areas, including roadsides, prairies, and mountain slopes. The plant can grow in a variety of soil types and is tolerant of both drought and cold temperatures.
Question and Answer
Q: Can I grow Grindelia Squarrosa in a container?
A: It is possible to grow Grindelia Squarrosa in a container, but it may not thrive as well as it would in the ground.
Q: Is Grindelia Squarrosa poisonous?
A: No, Grindelia Squarrosa is not poisonous.
Q: Can I use Grindelia Squarrosa for medicinal purposes?
A: Yes, Grindelia Squarrosa has been used for medicinal purposes for centuries by Native American tribes.
Q: Is Grindelia Squarrosa invasive?
A: No, Grindelia Squarrosa is not considered invasive.
Related Plants
- Grindelia Camporum
- Grindelia Hirsutula
- Grindelia Integrifolia
References
- USDA Plants Database. (n.d.). Grindelia squarrosa (Pursh) Dunal. Retrieved November 17, 2021, from https://plants.usda.gov/home/plantProfile?symbol=GRSQ
- Missouri Botanical Garden. (n.d.). Grindelia squarrosa. Retrieved November 17, 2021, from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=f510
- University of Arizona. (n.d.). Grindelia squarrosa (curlycup gumweed). Retrieved November 17, 2021, from https://cals.arizona.edu/yavapai/anr/hort/byg/archive/grindelia.html
