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(Hieracium venosum)
Rattlesnakeweed (Hieracium venosum)
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Dcrjsr
CC BY 3.0
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Dcrjsr
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Copyright:
CC BY 3.0
Copyright Notice:
Photo by: Dcrjsr | License Type: CC BY 3.0 | License URL: https://creativecommons.org/licenses/by/3.0 | Uploader: Dcrjsr | Publisher: Wikimedia Commons | Title: Hieracium_venosum_flowers_buds.jpg |
Estimated Native Range
Climate Requirements for Winnipeg, Canada
| This Plant | Your Site | Plant Suitability for Your Location | ||
|---|---|---|---|---|
| • Precipitation | 41" - 49" | 22" | Your precipitation may be insufficient for this plant. Irrigate N" / year. | Irrigate N" / year |
| • High Temp. | 81°F - 89°F | 82°F | Your summer temperatures are normal for this plant. | Excellent |
| • Low Temp. | 16°F - 29°F | -9°F | Your winter temperatures may be too cold for this plant | Too cold |
This plant should grow well at your location with about N inches per year (Y minutes per month) of irrigation.
Summary
Hieracium venosum, commonly known as Rattlesnakeweed, is a deciduous perennial herb native to open woodlands and forest edges in the Eastern United States and Canada. It typically grows up to 45 cm (18 inches) tall, with a basal rosette of hairy leaves and a slender stem. The plant is notable for its striking venation, which resembles a snake’s skin. Rattlesnakeweed produces clusters of 20 flower heads from May to September, each head containing 30–45 bright yellow ray flowers, creating a showy display. However, it lacks the central disc flowers commonly found in other daisy family members.
Rattlesnakeweed is appreciated for its unique foliage and long blooming period, making it a suitable choice for native plant gardens, woodland borders, and as a ground cover in shaded areas. It is adaptable to a range of soil types but prefers dry, sandy soils. While it thrives in shady conditions, it can also tolerate full sun if provided with adequate moisture. Gardeners should be aware that it can spread through seed and may become aggressive in some conditions. It is relatively low-maintenance and can be a good choice for xeriscaping due to its drought tolerance.CC BY-SA 4.0
Rattlesnakeweed is appreciated for its unique foliage and long blooming period, making it a suitable choice for native plant gardens, woodland borders, and as a ground cover in shaded areas. It is adaptable to a range of soil types but prefers dry, sandy soils. While it thrives in shady conditions, it can also tolerate full sun if provided with adequate moisture. Gardeners should be aware that it can spread through seed and may become aggressive in some conditions. It is relatively low-maintenance and can be a good choice for xeriscaping due to its drought tolerance.CC BY-SA 4.0
Plant Description
- Plant Type: Herb
- Height: 1-2.5 feet
- Width: 0.28-0.7 feet
- Growth Rate: Moderate
- Flower Color: Yellow
- Flowering Season: Spring, Summer
- Leaf Retention: Deciduous
Growth Requirements
- Sun: Full Sun, Part Shade
- Water: Medium
- Drainage: Slow, Medium, Fast
Common Uses
Bird Garden, Butterfly Garden, Low Maintenance
Natural Habitat
Open woodlands and forest edges
Other Names
Common Names: Rattlesnake Hawkweed, Robin’s Plantain, Veiny-Leaved Hawkweed, Épervière Veinée
Scientific Names: Hieracium venosum, Hieracium gronovii, Hieracium venosum var. venosum, Hieracium venosum var. nudicaule, Hieracium venosum subsp. nudicaule, Hieracium venosum var. subcaulescens, Pilosella venosa, Hieracium subnudum, Hieracium gronovii var. nudicaule
GBIF Accepted Name: Hieracium venosum L.