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- Hosta lancifolia
Hosta lancifolia — narrow-leaved plantain-lily
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Facts
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
New England distribution
Adapted from BONAP data
Native: indigenous.
Non-native: introduced (intentionally or unintentionally); has become naturalized.
County documented: documented to exist in the county by evidence (herbarium specimen, photograph). Also covers those considered historical (not seen in 20 years).
State documented: documented to exist in the state, but not documented to a county within the state. Also covers those considered historical (not seen in 20 years).
Note: when native and non-native populations both exist in a county, only native status is shown on the map.
Found this plant? Take a photo and post a sighting.
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
-
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
In New England
Distribution
- Connecticut
- present
- Maine
- absent
- Massachusetts
- absent
- New Hampshire
- absent
- Rhode Island
- absent
- Vermont
- absent
Conservation status
Exact status definitions can vary from state to state. For details, please check with your state.
- Massachusetts
- not applicable (S-rank: SNA)
From Flora Novae Angliae dichotomous key
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.
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