Hosta lancifolia Tratt.

narrow-leaved plantain-lily

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New England Distribution

Adapted from BONAP data

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North America Distribution

Adapted from BONAP data

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Facts About

Narrow-leaved plantain-lily is cultivated worldwide as a garden plant. It was developed in ancient Japan, and no wild type survives. It has escaped from gardens in Connecticut.

Habitat

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

Characteristics

Habitat
terrestrial
New England state
Connecticut
Leaf arrangement
basal: the leaves are growing only at the base of the plant
Leaf blade shape
the leaf blade is lanceolate (lance-shaped; widest below the middle and tapering at both ends)
Leaf blade length
100–170 mm
Flower petal color
blue to purple
Flower petal length
40–45 mm
Petal fusion
the perianth parts are fused to form a tube, cup, or bell shape
Inflorescence type
the inflorescence is a raceme (a long unbranched stem with stalked flowers growing along it)
Ovary position
the ovary is above the point of petal and/or sepal attachment
Fruit type (specific)
the fruit is a capsule (splits along two or more seams, apical teeth or pores when dry, to release two or more seeds)
Fruit length
20 mm
Show All Characteristics
  • Clonal plantlets
    Axillary bulblets
    there are no bulblets being produced in axils
  • Flowers
    Anther attachment
    the anther is attached at its midpoint to the filament
    Anther color
    there is a noticeable pink, reddish or purplish tint to the anthers
    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 bracts
    there are bracts associated with the flower
    Flower number
    10–20
    Flower orientation
    • the flowers curve or droop downwards
    • the flowers point upward or spread or curve outward
    Flower petal color
    blue to purple
    Flower petal length
    40–45 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 length
    170–200 mm
    Inflorescence type
    the inflorescence is a raceme (a long unbranched stem with stalked flowers growing along it)
    Length of peduncle
    400–500 mm
    Marks on petals
    • the petals have spots or streaks on them
    • 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
    Petal nectaries
    there are nectaries at the petal bases
    Sepal appearance
    the sepals resemble petals in color and texture
    Sepal length
    4–4.5 mm
    Sepal orientation
    • the sepals are curved outwards and downwards
    • the sepals are slightly curved outwards from the plant
    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 number
    6
    Stamen position relative to petals
    NA
    Stamens fused
    the stamens are not fused to one another
    Stamens fused outwards
    • the stamens are fused to the petals or tepals at or near their bases
    • the stamens are not fused to the petals or tepals
    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
    NA
    Fruit beak length
    0 mm
    Fruit cross-section
    • the fruit is another shape in cross-section
    • the fruit is roughly triangular in cross-section
    Fruit length
    20 mm
    Fruit stalk orientation
    the fruits curve or droop downwards
    Fruit type (general)
    the fruit is dry and splits open when ripe
    Fruit type (specific)
    the fruit is a capsule (splits along two or more seams, apical teeth or pores when dry, to release two or more seeds)
    Other markings on berry
    NA
  • Glands or sap
    Sap
    the sap is clear and watery
  • Growth form
    Lifespan
    the plant lives more than two years
    Underground organs
    the plant has a rhizome (a horizontal underground stem with roots growing from it)
  • Leaves
    Leaf arrangement
    basal: the leaves are growing only at the base of the plant
    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 cordate (heart-shaped, with rounded lobes) or sagittate (arrow-shaped, with pointed, backward-facing lobes)
    • the base of the leaf blade is rounded
    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
    100–170 mm
    Leaf blade orientation
    the upper surface of the leaf blade faces the stem of the plant
    Leaf blade shape
    the leaf blade is lanceolate (lance-shaped; widest below the middle and tapering at both 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
    30–75 mm
    Leaf stalk length
    170–250 mm
    Leaf type
    the leaves are simple (i.e., 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
    Specific habitat
    • edges of forests
    • 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 leaves
    there are no true leaves on the flowering stem

Wetland Status

Not classified

New England Distribution and Conservation Status

Distribution

Connecticut
present
Maine
absent
Massachusetts
absent
New Hampshire
absent
Rhode Island
absent
Vermont
absent

Conservation Status

None

Native to North America?

No

Sometimes Confused With

Hosta ventricosa:
leaf blades ovate to cordate-ovate, mostly 20–30 X 15–20 cm, with 7–9 pairs of lateral veins, and flowers abruptly expanding apically, with purple-blue tepals (vs. H. lancifolia, with leaf blades lanceolate to broad-lanceolate, mostly 10–17 X 5–7.5 cm, with 5 or 6 pairs of lateral veins and flowers gradually expanding apically, with pale purple tepals).

Synonyms

  • Hemerocallis japonica (Thunb.) Thunb.
  • Hemerocallis lancifolia Thunb.
  • Hosta japonica (Houtt.) Voss

Family

Hostaceae

Genus

Hosta

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Information from Dichotomous Key of Flora Novae Angliae

1.  Hosta lancifolia Tratt. E

narrow-leaved plantain-lily. Hemerocallis japonica (Thunb.) Thunb.; H. lancifolia Thunb.; 
 Hosta japonica (Houtt.) Voss • CT. Fields, roadsides, forest edges, abandoned house lots.