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• Orchids and related plants
• Irises, lilies, and other "monocots"
• Convallaria majalis

Convallaria majalis — European lily-of-the-valley

Facts

European lily-of-the-valley was introduced from Europe and has naturalized in many areas of eastern North America. It is a popular garden perennial but needs to be kept in check. Also, care needs to be taken that it is not ingested because it contains more than three dozen glycosides.

Habitat

Anthropogenic (man-made or disturbed habitats), meadows and fields

Characteristics

• Clonal plantlets

  Axillary bulblets

  there are no bulblets being produced in axils

• Flowers

  Anther attachment

  the anther is attached by its base to the filament

  Bulblets replace flowers

  there are no bulblets where the flowers are located

  Carpels fused

  the carpels are fused (the number of carpels equals the number of locules)

  Flower bract length

  4–10 mm

  Flower bracts

  there are bracts associated with the flower

  Flower number

  5–15

  Flower orientation

  the flowers curve or droop downwards

  Flower petal color

  white

  Flower petal length

  6–9 mm

  Flower shape

  the flower is bell-shaped

  Flower symmetry

  there are two or more ways to evenly divide the flower (the flower is radially symmetrical)

  Form of style

  • the style is knob-like at the tip, and unbranched
  • the style is lobed at the tip, and unbranched

  Fringed petal edges

  the petals are not fringed

  Hairs on flower stalk

  the flower stalk has no hairs on it

  Inflorescence hair glands

  the axis of the inflorescence has no hairs on it

  Inflorescence length

  100–300 mm

  Inflorescence type

  the inflorescence is a raceme (a long unbranched stem with stalked flowers growing along it)

  Length of flower stalk

  7–12 mm

  Length of peduncle

  100–230 mm

  Marks on petals

  there are no noticeable marks on the petals

  Nectar spur

  the flower has no nectar spurs

  Number of carpels

  3

  Number of pistils

  1

  Number of sepals and/or petals

  there are six petals, sepals or tepals in the flower

  Number of styles

  1

  Ovary position

  the ovary is above the point of petal and/or sepal attachment

  Petal and sepal arrangement

  the flower includes only one cycle of petals or sepals

  Petal appearance

  the petals are thin and delicate, and pigmented (colored other than green or brown)

  Petal base

  the petal narrows gradually or does not narrow at the base

  Petal fusion

  the perianth parts are fused to form a tube, cup, or bell shape

  Sepal appearance

  the sepals resemble petals in color and texture

  Sepal length

  6–9 mm

  Sepal orientation

  the sepals are curved outwards and downwards

  Sepals fused only to sepals

  the sepals are fused to each other (often along with the petals in monocots), at least near their bases

  Spathe

  the plant does not have a spathe

  Spathe form

  NA

  Spathe length

  0 mm

  Stamen length

  2–3 mm

  Stamen number

  6

  Stamen position relative to petals

  NA

  Stamen types

  the stamens within a cycle are all similar

  Stamens fused outwards

  the stamens are fused to the petals or tepals at or near their bases

  Style petal-like

  the style is not broad and flattened like a petal

  Tepals

  the petals and sepals are similar in size and color

• Fruits or seeds

  Berry color

  • orange
  • red

  Capsule ridges

  NA

  Fruit beak length

  0 mm

  Fruit compartments

  there are three locules in the fruit

  Fruit cross-section

  the fruit is round in cross-section

  Fruit length

  6–12 mm

  Fruit stalk orientation

  the fruits curve or droop downwards

  Fruit type (general)

  the fruit is fleshy

  Fruit type (specific)

  the fruit is a berry (fleshy, with the wall enclosing one or more sections, with two or more seeds)

  Fruit width

  6–12 mm

  Other markings on berry

  the ripe fruits are mostly one color without spots or streaks

• Glands or sap

  Sap

  the sap is clear and watery

• Growth form

  Lifespan

  the plant lives more than two years

  Root septa

  the roots do not have transverse septa

  Underground organs

  the plant has a rhizome (a horizontal underground stem with roots growing from it)

• Leaves

  Hairs on underside of leaf blade

  the underside of the leaf is not hairy, or has very few hairs

  Hairs on upper side of leaf blade

  the upper side of the leaf is not hairy, or has very few hairs

  Leaf arrangement

  the leaves are growing only at the base of the plant (basal)

  Leaf blade basal lobes

  the leaf blades do not have basal lobes

  Leaf blade base

  the leaf has a distinct leaf stalk (petiole)

  Leaf blade base shape

  the base of the leaf blade is cuneate (wedge-shaped, tapers to the base with relatively straight, converging edges), or narrow

  Leaf blade bloom

  the underside of the leaf blade has no noticeable waxy or powdery bloom

  Leaf blade cross-section

  the leaf blade is more or less flat in cross-section

  Leaf blade faces

  both surfaces of the leaf blade are exposed

  Leaf blade form

  Fully-formed (i.e., expanded), +/- green leaf blades are found somewhere on the plant

  Leaf blade length

  90–260 mm

  Leaf blade orientation

  the upper surface of the leaf blade faces the stem of the plant

  Leaf blade shape

  • the leaf blade is elliptic (widest near the middle and tapering at both ends)
  • the leaf blade is oblong (rectangular but with rounded ends)

  Leaf blade surface colors

  the upper side of the leaf blade is relatively uniform in color

  Leaf blade tip

  the tip of the leaf blade is acuminate (tapers to a long, thin point)

  Leaf blade veins

  the lateral veins are parallel or slightly arched in the direction of the tip

  Leaf blade width

  25–50 mm

  Leaf stalk length

  80–240 mm

  Leaf type

  the leaves are simple (lobed or unlobed but not separated into leaflets

  Leaflet number

  0

  Stipule twining

  NA

  Stipules

  there are no stipules on this plant

• Place

  Habitat

  terrestrial

  New England state

  • Connecticut
  • Maine
  • Massachusetts
  • New Hampshire
  • Rhode Island
  • Vermont

  Specific habitat

  • man-made or disturbed habitats
  • meadows or fields

• Scent

  Plant odor

  the leaves have no particular smell

• Stem, shoot, branch

  Flowering stem growth form

  the flowering stem is held upright

  Flowering stem interior

  the flowering stem is solid

  Flowering stem leaves

  there are no true leaves on the flowering stem

  Stem hairs

  the stem is nearly or completely hairless

Wetland status

Not classified

New England distribution and conservation status

From the dichotomous key of Flora Novae Angliae