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Description
Cynanchum Obtusifolium, commonly known as blunt-leaved swallow-wort, is a species of flowering plant in the family Apocynaceae. Native to North America, it is a herbaceous perennial that can grow up to six feet tall. The plant produces clusters of small, white flowers with a distinct odor that attracts bees and butterflies. The seeds are contained in pods that resemble milkweed.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Gentianales |
| Family | Apocynaceae |
| Genus | Cynanchum |
Appearance
Cynanchum Obtusifolium has a unique appearance that sets it apart from other plants. The leaves are oval-shaped and grow up to four inches long. They are a dull green color and have a slightly fuzzy texture. The stems are tall and thin, with small clusters of flowers at the top. The flowers are star-shaped and have five petals that are white in color. The seeds are contained in a pod that is long and narrow, resembling that of milkweed.
Care Guide
Proper care is essential for the health and growth of Cynanchum Obtusifolium. Here are some tips for caring for this plant:
- Water: Water the plant regularly, but do not over-water as this can cause root rot.
- Fertilization: Fertilize the plant with a balanced fertilizer once per month during the growing season.
- Soil: Cynanchum Obtusifolium thrives in well-draining soil that is rich in organic matter.
- Sunlight: This plant prefers full sun to partial shade.
- Hardiness Zones: Cynanchum Obtusifolium is hardy in USDA zones 3-8.
Common Pests & Diseases
Cynanchum Obtusifolium is generally resistant to pests and diseases. However, it can be susceptible to spider mites, aphids, and whiteflies. If these pests are present, they can be treated with insecticidal soap or neem oil. Root rot can also be a problem if the plant is over-watered or if the soil does not drain properly.
Habitat
Cynanchum Obtusifolium is native to North America and can be found in a variety of habitats, including meadows, prairies, and open woodlands. It prefers well-draining soil and full sun to partial shade.
Question and Answer
Q: Is Cynanchum Obtusifolium poisonous?
A: Yes, this plant is toxic if ingested and should not be consumed by humans or animals.
Q: Can Cynanchum Obtusifolium be grown indoors?
A: No, this plant is best suited for outdoor growth in a suitable habitat.
Q: Does Cynanchum Obtusifolium attract pollinators?
A: Yes, the flowers of this plant have a distinct odor that attracts bees and butterflies.
Q: How often should Cynanchum Obtusifolium be fertilized?
A: Fertilize the plant once per month during the growing season for optimal growth.
Related Plants
- Cynanchum laeve
- Cynanchum rossicum
- Cynanchum racemosum
References
- “Cynanchum Obtusifolium.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=277701.
- “Cynanchum Obtusifolium.” Illinois Wildflowers, www.illinoiswildflowers.info/prairie/plantx/bl_swallowwortx.htm.
- “Blunt-Leaved Milkweed.” Minnesota Wildflowers, www.minnesotawildflowers.info/flower/blunt-leaved-milkweed.
