Erythronium americanum Ker Gawl.

Dogtooth violet (en)

Species

Angiosperms > Liliales > Liliaceae > Erythronium

Characteristics

Bulbs ovoid, 15–28 mm; stolons 1–3, common, mostly on 1-leaved, nonflowering plants. Leaves 8–23 cm; blade green, irregularly mottled, elliptic-lanceolate to ovate or elliptic, ± flat, glaucous, margins entire. Scape 10–18 cm. Inflorescences 1-flowered. Flowers: tepals yellow, sometimes tinged light to dark purple-red abaxially, sometimes with reddish dots adaxially, strongly reflexed at anthesis, lanceolate, 20–33 mm, inner with small auricles; stamens 9–15 mm; filaments yellow, lanceolate; anthers yellow, chestnut brown, or lavender; pollen yellow or brown; style deciduous or base forming small apiculum, greenish yellow, 5–11 mm, swollen distally or ± terete; stigma lobes erect or recurved, 1.5 mm. Capsules held erect or at least off ground at maturity, obovoid, 12–15 mm, apex rounded, truncate, or apiculate. 2n = 48.
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Extensively colonial; sterile corms numerous, producing a single lf and 2–several stolon-like offshoots; fertile corms few, 2-lvd; lvs mottled in life; scape stout, 1–2 dm; tep 1.5–5 cm, recurved-reflexed at anthesis, yellow, often spotted toward the base within or darker-colored outside, the pet with a small rounded auricle on each side 3–6 mm above the base; ovary and fr convex or truncate or apiculate, the fr commonly held above the ground ± horizontally; stigmas short, scarcely separate, terminating the clavate style; 2n=48. Moist woods; N.S. and w. Ont. to Minn., s. to Fla. and Ala., commoner eastward. Apr., May.
A bulb plant. It grows 10-25 cm high and spreads 8-15 cm wide. The leaves fan outwards and are mottled purple. The flowers occur singly. They are yellow and bell shaped. They are nodding. The plant goes dormant in early summer.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.08 - 0.12
Mature height (meter) 0.2
Root system creeping-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a temperate plant. It grows in rich, moist forests and in valley bottoms. It suits hardiness zones 3-9.
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Meadows and rich damp open woodland.
Light 4-6
Soil humidity 4-6
Soil texture 3-5
Soil acidity 2-7
Soil nutriment -
Hardiness (USDA) 3-7

Usage

The young leaves are boiled for 5-10 minutes then served with vinegar. They are also eaten raw in salads. The bulb like corms are boiled for 15-20 minutes and served with butter. The flower stalks, flower buds and flowers are eaten raw or cooked.
Uses environmental use medicinal
Edible bulbs flowers leaves roots stems
Therapeutic use Dermatological Aid (leaf), Febrifuge (root), Hunting Medicine (root), Contraceptive (root), Dermatological Aid (root), Stimulant (unspecified), Boil (unspecified), Cancer (unspecified), Emetic (unspecified), Emollient (unspecified), Poultice (unspecified), Scrofula (unspecified), Tumor (unspecified), Ulcer (unspecified), Antiscrofulous (unspecified), Diuretic (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 30 - 365
Germination temperacture (C°) 10 - 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -40
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Erythronium americanum habit picture by shayne shayne brookes (cc-by-sa)
Erythronium americanum habit picture by dredodo (cc-by-sa)
Erythronium americanum habit picture by Bryce Avot (cc-by-sa)

Leaf

Erythronium americanum leaf picture by hotxpickle (cc-by-sa)
Erythronium americanum leaf picture by pavonis giron (cc-by-sa)
Erythronium americanum leaf picture by Sonia Archambault (cc-by-sa)

Flower

Erythronium americanum flower picture by kira deane (cc-by-sa)
Erythronium americanum flower picture by julia elloff (cc-by-sa)
Erythronium americanum flower picture by Étienne Pouliot (cc-by-sa)

Distribution

Erythronium americanum world distribution map, present in Åland Islands, Micronesia (Federated States of), Georgia, Malaysia, Nicaragua, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:276827-2
WFO ID wfo-0000766896
COL ID 6H5F4
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Erythronium flavum Erythronium nuttallianum Erythronium americanum f. americanum Erythronium americanum

Lower taxons

Erythronium americanum subsp. harperi Erythronium americanum subsp. americanum