Slender-Leaved Owl’s-Clover
(Orthocarpus tenuifolius)
Slender-Leaved Owl’s-Clover (Orthocarpus tenuifolius)
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Matt Lavin
CC BY 4.0
Image By:
Matt Lavin
Recorded By:
Copyright:
CC BY 4.0
Copyright Notice:
Photo by: Matt Lavin | License Type: CC BY 4.0 | License URL: http://creativecommons.org/licenses/by/4.0/ | Rights Holder: Matt Lavin | Publisher: iNaturalist | Date Created: 2018-07-09T10:23:15-07:00 |

























Estimated Native Range
Climate Requirements
• Precipitation | 16" - 24" |
• High Temp. | 77°F - 86°F |
• Low Temp. | 10°F - 23°F |
Summary
Orthocarpus tenuifolius, commonly known as Slender-leaved Owl’s-Clover, is an annual herb that is native to the grasslands and open meadows of the western United States. It typically grows up to 1 foot tall and is characterized by its dense spikes of pink to purple flowers that bloom in the spring and early summer. The flowers are quite showy and are arranged in a distinctive pattern that resembles the face of an owl, hence the common name. The plant has narrow, linear leaves that contribute to its slender appearance.
Slender-leaved Owl’s-Clover is valued for its vibrant floral display and is often used in wildflower gardens, meadow plantings, and as a component in native plant landscaping. It is adapted to full sun conditions and requires well-drained soils. While it is drought-tolerant once established, it benefits from occasional watering during prolonged dry periods. This species is relatively low-maintenance and can reseed itself, making it a suitable choice for naturalistic settings. However, it may not compete well with aggressive plants or in overly fertile soils.CC BY-SA 4.0
Slender-leaved Owl’s-Clover is valued for its vibrant floral display and is often used in wildflower gardens, meadow plantings, and as a component in native plant landscaping. It is adapted to full sun conditions and requires well-drained soils. While it is drought-tolerant once established, it benefits from occasional watering during prolonged dry periods. This species is relatively low-maintenance and can reseed itself, making it a suitable choice for naturalistic settings. However, it may not compete well with aggressive plants or in overly fertile soils.CC BY-SA 4.0
Plant Description
- Plant Type:
- Height: 0.5-2 feet
- Width: 0.5-1 feet
- Growth Rate: Rapid
- Flower Color: Pink, Purple, Yellow
- Flowering Season: Spring, Summer
- Leaf Retention:
Growth Requirements
- Sun: Full Sun, Part Shade
- Water: Low
- Drainage: Fast, Medium
Common Uses
Bee Garden, Butterfly Garden, Low Maintenance
Natural Habitat
Grasslands and open meadows
Other Names
Common Names: Slenderleaf Owl’s Clover , Slender Owl’s Clover , Thin-Leaved Owl-Clover , Lacy Owl’s Clover
Scientific Names: Orthocarpus tenuifolius , Bartsia tenuifolia , Rhinanthus tenuifolius
GBIF Accepted Name: Orthocarpus tenuifolius