Halogeton

Discuss this plant with the guide — choose this profile as a possible match and prepare your observations for Colorado Plants & Practical Care.

Halogeton glomeratus

Colorado noxious weed · List C — Manage widespread weeds. CO-rules-2025

Widespread and well established. Control is recommended by the state; local governments may require management. This is a management category, separate from danger ratings. Category source · What the lists mean.

Severe oxalate poisoning in livestock. Exposure help.

Still researching this plant

This is a sourced working profile. Evidence is incomplete for People, Dogs & cats. Independent botanical and veterinary review is pending. Uncertainty is not a finding that the plant is safe.

Three views of this plant

Source-identified reference photographs; these are not a complete identification key. A source location outside Colorado does not establish local occurrence.

Halogeton glomeratus: Small fleshy cylindrical blue-green leaves cluster along a reddish stem. — **leaf** — Small fleshy cylindrical blue-green leaves cluster along a reddish stem.
Matt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0
Photo source and identification
Original record · Original image
Source page scientific identification plus visual morphology review of the selected photograph. This is a source-identified reference image, not a specimen-based taxonomic determination.
Wikimedia server-resized derivative; no crop, color change, or generative editing. Gallery display preserves the full image; the catalog preview uses a CSS crop.

Halogeton glomeratus: Sparse branching green plants on open pale disturbed soil. — **habit** — Sparse branching green plants on open pale disturbed soil.
Matt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0
Photo source and identification
Original record · Original image
Source page scientific identification plus visual morphology review of the selected photograph. This is a source-identified reference image, not a specimen-based taxonomic determination.
Wikimedia server-resized derivative; no crop, color change, or generative editing. Gallery display preserves the full image; the catalog preview uses a CSS crop.

Halogeton glomeratus: Upright pinkish stems densely covered with pale papery reproductive structures. — **mature-plant** — Upright pinkish stems densely covered with pale papery reproductive structures.
Matt Lavin from Bozeman, Montana, USA · CC BY-SA 2.0
Photo source and identification
Original record · Original image
Source page scientific identification plus visual morphology review of the selected photograph. This is a source-identified reference image, not a specimen-based taxonomic determination.
Wikimedia server-resized derivative; no crop, color change, or generative editing. Gallery display preserves the full image; the catalog preview uses a CSS crop.

Recognize

An annual of saline disturbed ground with fleshy, narrow leaves ending in a hair-like tip; stems may redden. A-halogeton

Plants & habitat

Occupies disturbed dry rangeland and saline soils. Prevent seed spread and involve the local weed program. A-halogeton

People

The reviewed sources do not establish species-specific ingestion effects or a safe exposure amount for people. Missing evidence does not establish safety.

Dogs & cats

The reviewed sources do not establish species-specific ingestion effects or a safe exposure amount for dogs or cats. Missing evidence does not establish safety.

Other animals

Soluble oxalates can cause severe, sometimes fatal poisoning in sheep and cattle. Dry plants remain hazardous; do not assume curing or senescence makes forage safe. A-halogeton

Before taking action

Confirm identification and the requirements of your county weed program. For chemical treatment, follow the current product label, including restrictions around animals and water. S27

References

CO-rules-2025 — Colorado Noxious Weed Act rules, 8 CCR 1206-2, Colorado Secretary of State / Department of Agriculture. Accessed 2026-09-07T01:07:48+00:00. Locator: Parts 3.1, 4.1, 5.1; management provisions; effective May 15, 2025.
A-halogeton — Halogeton (Halogeton glomeratus), USDA Agricultural Research Service. Accessed 2026-09-07T01:13:59+00:00. Locator: Description; distribution; poisoning; management.
S27 — 2103 – Colorado Noxious Weeds, PlantTalk Colorado · CSU Extension. Accessed 2026-09-07T00:23:57+00:00. Locator: List A, B and C management categories.

Content revised 2026-09-07 03:50:00Z · Source checks dated separately in the references.