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Amanita chlorinosma

Common Name(s):

Phonetic Spelling
am-ah-NEE-tah klor-in-OS-mah
This plant has high severity poison characteristics.
See below
Description

The large size, powdery cap and enlarged base of the stalk, as well as the strong chlorine or rotting meat odor, make this easily recognized. There are other species of Amanita that have a chlorine odor but have more persistent scales and an annulus (ring) on the stalk. All such Amanitas should be avoided.

The cap is very large, up to 10 inches in diameter, whitish, covered with dense, soft, powdery scales which may wash off easily in rain. The Gills are close, whitish, with cottony edges. The stalk is greatly enlarged below, often with the lower 1/3 buried in soil, and whitish. The Annulus (ring) is fragile, whitish, and often left on edge of caps with no tissue in the stalk. The Spore print is white; strong chlorine odor, especially when broken open or enclosed in a container for some time.

Typically found growing singly in forested or natural areas or in the landscape.  It is usually under oak or pine trees, and less often under pine.

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#understory#poisonous#mushroom#poisonous mushroom#forest mushroom#chlorine odor#malodorus
 
Cultivars / Varieties:
Tags:
#understory#poisonous#mushroom#poisonous mushroom#forest mushroom#chlorine odor#malodorus
  • Attributes:
    Genus:
    Amanita
    Species:
    chlorinosma
    Family:
    Amanitaceae
    Life Cycle:
    Perennial
    Country Or Region Of Origin:
    USA, NC
    Distribution:
    Throughout NC but chiefly in the Piedmont and Coastal Plain
    Play Value:
    Shade
    Textural
    Edibility:
    NOT EDIBLE!
  • Whole Plant Traits:
    Plant Type:
    Poisonous
    Habit/Form:
    Columnar
    Erect
    Growth Rate:
    Rapid
    Texture:
    Medium
  • Cultural Conditions:
    Light:
    Deep shade (Less than 2 hours to no direct sunlight)
    NC Region:
    Coastal
    Piedmont
  • Leaves:
    Hairs Present:
    No
  • Stem:
    Stem Color:
    White
    Stem Is Aromatic:
    No
    Stem Bud Scales:
    Enclosed in more than 2 scales
    Stem Cross Section:
    Round
    Stem Form:
    Straight
    Stem Description:
    The stem is up to 4.5" tall. The lower 1/3 of the stem narrows until reaching the upper 2/3, remains equal in width.
  • Landscape:
    Landscape Location:
    Naturalized Area
    Woodland
    Problems:
    Poisonous to Humans
  • Poisonous to Humans:
    Poison Severity:
    High
    Poison Symptoms:
    HIGHLY TOXIC MAY BE FATAL IF EATEN! Poisonous through ingestion (Poisonous part: mushroom). Symptoms: Strongly suspected to be toxic; apparently little has been documented on this specific species but it is expected to produce symptoms similar to other Amanita species: nausea, vomiting, dizziness, abdominal pains, etc. Symptoms occur 30 minutes to several hours after ingesting.
    Poison Toxic Principle:
    The large size, powdery cap, enlarged base of the stalk and strong chlorine odor make this easily recognized. There are othe
    Causes Contact Dermatitis:
    No
    Poison Part:
    Bark
    Flowers
    Fruits
    Leaves
    Roots
    Seeds
    Stems