2025年2月26日 · Kochia, also known as Mexican fireweed, burning bush, and summer cypress, is primarily found in the central and western United States. This is where the weed is most abundant, causing high concentrations of pollen during allergy season. Kochia is also sometimes observed in eastern states that provide good conditions.

Kochia will grow vegetative throughout the spring and summer before flowering; it can produce copious amounts of pollen. In the fall, fully senesced mature kochia plants will detach at the soil surface and tumble across the landscape, dropping seeds with each impact, in a wind-driven process that spreads seeds long distances.

Explore our comprehensive guide on Burningbush (Kochia) pollen, including allergen details, locations across the US, and botanical insights for healthcare providers and patients managing pollen allergies.

Pollen Type: Weed. Cross-Reactivity: Lamb’s Quarters. HS Allergy Extract: Kochia. Family: Chenpodiaceae. Genus/Species: Kochia scoparia ssp. scoparia. Common Names: Kochia, Burning Bush. Distribution: Widespread in central and western U.S., especially Plains states; spreading both eastward and westward.

2024年6月10日 · Kochia, also known as lamb’s quarter or Belvedere summer cypress, can trigger a wave of allergy symptoms if you’re sensitive to its pollen. Here’s to unmasking Kochia & Lamb’s Quarter Allergies. Kochia is a unique plant native to Eurasia.

Pollination: Kochia commonly self-pollinates, but has a moderate rate of outcrossing by wind and bee dispersed pollen(Beckie et al. 2016, Friesen et al. 2009, Mulugeta et al. 1994) Reproduction: Kochia typically produces 10,000 to 30,000 seeds per plant (Friesen et al. 2009, Stevens 1932, Thompson et al. 1994), with the potential for up to ...

Anecdotal evidence suggests that asthma, allergic rhinitis and allergic conjunctivitis are common following exposure to pollen from Kochia; however, few specific studies have been reported to date. (1-3)

The genus Kochia, native to Europe and Asia, has been introduced to the U.S. as an ornamental because of their brilliant red fall color and unusual corky bark. As the plant naturalized in Colorado, it reverted to rank weed and has spread east and west. Flowering occurs from July to September with the production of large amounts of pollen.

Kochia is in the chenopod family of weeds, along with Russian Thistle, Lamb's Quarter and other weeds common to the Grand Valley. It grows throughout the Grand Valley beginning in June and starts to release pollen in August, peaking in late August and September.