Wild ginger
General poisoning notes:
Wild ginger (Asarum
canadense) is a native wildflower growing in rich woods in eastern Canada.
This plant can cause dermatitis in some humans (Mitchell and Rook 1979).
Description:
Rhizomes
horizontal, shallow, internodes 1.0-3.5 cm. Leaves: petiole 6-20 cm, crisped-hirsute.
Leaf blade not variegate, cordate-reniform to reniform, 4-8(-20) × 8-14(-21.5)
cm, apex rounded or obtuse; surfaces abaxially appressed-hirsute, usually
sparsely so, adaxially appressed-hirsute, at least along main veins, marginal
hairs perpendicular to margin or curved toward apex. Flowers erect or
ascending; peduncle 1.5-3 cm; false calyx tube cylindric, externally tan or
purplish, hirsute (often densely), internally white or pale green, occasionally
mottled with purple, with white or purple hairs; distal portion of sepal
spreading or reflexed at anthesis, 6-24 mm, apex apiculate to acuminate or
filiform-attenuate, abaxially green or purple, hirsute, adaxially purple,
puberulent with crisped purple or pale hairs; pollen sacs 1-1.5 mm, sterile tip
of connective on inner stamens purple, 0.5-1 mm, shorter than or about as long
as pollen sacs. 2 n = 26.
Nomenclature:
Scientific Name: Asarum canadense L.
Vernacular
name(s): wild ginger
Scientific family
name: Aristolochiaceae
Vernacular family
name: birthwort
Geographic Information
New Brunswick, Ontario, Quebec, Manitoba.
Toxic parts:
Leaves.
Animals/Human Poisoning:
Note: When an
animal is listed without additional information, the literature (as of 1993)
contained no detailed explanation.
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