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Description
Oryzopsis Asperifolia, commonly known as Scratchgrass, is a cool-season grass that belongs to the Poaceae family. This perennial grass is native to North America and is found in the western United States and Canada. It grows in a clumping pattern and can reach a height of 3 feet.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Monocotyledonae |
| Order | Poales |
| Family | Poaceae |
| Genus | Oryzopsis |
Appearance
Oryzopsis Asperifolia has narrow leaves that are rough to the touch due to fine hairs on the leaf blades. The leaves are bluish-green and can grow up to 10 inches long. The seed heads are dense and spike-like, and can reach up to 6 inches long. The seeds are small and have awns that are 1-2 inches long.
Care Guide
Water: Oryzopsis Asperifolia is drought-tolerant and can withstand long periods without water. However, it thrives when watered moderately.
Fertilization: This grass does not require frequent fertilization. An annual application of a balanced fertilizer in the spring is sufficient.
Soil: Oryzopsis Asperifolia grows well in well-draining soils with a pH range of 6.0-7.5. It can tolerate poor soils but prefers fertile soils.
Sunlight: This grass prefers full sun but can tolerate partial shade.
Hardiness Zones: Oryzopsis Asperifolia grows well in USDA hardiness zones 3-9.
Common Pests & Diseases
Oryzopsis Asperifolia is relatively resistant to pests and diseases. However, it can be affected by leaf spot, rust, and smut. Pests that may attack this grass include armyworms, cutworms, and grasshoppers.
Habitat
Oryzopsis Asperifolia is commonly found in open areas such as grasslands, meadows, and prairies. It can grow in elevations ranging from 3,000-10,000 feet above sea level. This grass is well-adapted to dry and cold climates.
Question and Answer
Q: Is Oryzopsis Asperifolia an invasive species?
A: No, this grass is not considered an invasive species.
Q: How often should Oryzopsis Asperifolia be watered?
A: This grass should be watered moderately, but can withstand long periods without water.
Q: What is the ideal pH range for the soil in which Oryzopsis Asperifolia grows?
A: This grass grows well in soils with a pH range of 6.0-7.5.
Q: Can Oryzopsis Asperifolia tolerate shade?
A: Yes, this grass can tolerate partial shade.
Related Plants
- Oryzopsis hymenoides
- Oryzopsis micrantha
- Oryzopsis pungens
References
- “Oryzopsis Asperifolia.” Lady Bird Johnson Wildflower Center.
- “Oryzopsis Asperifolia.” USDA Plants Database.
- “Scratchgrass.” Montana Field Guide.
