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- Polygonatum latifolium
Polygonatum latifolium — broad-leaved Solomon's-seal
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Facts
Broad-leaved Solomon's-seal is a European species, occasionally found in New England and a garden escapee, in Massachusetts, New Hampshire and Vermont.
Habitat
Anthropogenic (man-made or disturbed habitats), forest edges
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.
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Characteristics
- Habitat
- terrestrial
- New England state
-
- Massachusetts
- New Hampshire
- Vermont
- Leaf arrangement
- alternate: there is one leaf per node along the stem
- Leaf blade shape
-
- the leaf blade is elliptic (widest near the middle and tapering at both ends)
- the leaf blade is lanceolate (lance-shaped; widest below the middle and tapering at both ends)
- the leaf blade is ovate (widest below the middle and broadly tapering at both ends)
- Leaf blade length
- 70–125 mm
- Flower petal color
-
- green to brown
- white
- Flower petal length
- 13–21 mm
- Petal fusion
- the perianth parts are fused to form a tube, cup, or bell shape
- Inflorescence type
-
- the flowers grow out of the axil (point where a branch or leaf is attached to the main stem)
- 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 berry (fleshy, with the wall enclosing one or more sections, with two or more seeds)
- Fruit length
- 6–9 mm
-
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 petal color
-
- green to brown
- white
- Flower petal length
- 13–21 mm
- 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 type
-
- the flowers grow out of the axil (point where a branch or leaf is attached to the main stem)
- the inflorescence is a raceme (a long unbranched stem with stalked flowers growing along it)
- Marks on petals
- there are no noticeable marks on the petals
- Nectar spur
- the flower has no nectar spurs
- Number of pistils
- 1
- Number of styles
- 1
- Ovary position
- the ovary is above the point of petal and/or sepal attachment
- Petal appearance
- the petals are thin and delicate, and pigmented (colored other than green or brown)
- 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
- 13–21 mm
- 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
- Stamen number
- 6
- Stamen position relative to petals
- NA
- 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
- blue
- Capsule ridges
- NA
- Fruit compartments
- there are three locules in the fruit
- Fruit length
- 6–9 mm
- 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)
- 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
- Underground organs
- the plant has a rhizome (a horizontal underground stem with roots growing from it)
-
Leaves
- Leaf arrangement
- alternate: there is one leaf per node along the stem
- 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 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
- 70–125 mm
- Leaf blade shape
-
- the leaf blade is elliptic (widest near the middle and tapering at both ends)
- the leaf blade is lanceolate (lance-shaped; widest below the middle and tapering at both ends)
- the leaf blade is ovate (widest below the middle and broadly tapering at both ends)
- Leaf blade surface colors
- the upper side of the leaf blade is relatively uniform in color
- Leaf blade veins
- the lateral veins are parallel or slightly arched in the direction of the tip
- Leaf type
- the leaves are simple (i.e., lobed or unlobed but not separated into leaflets
- Stipule twining
- NA
- Stipules
- there are no stipules on this plant
-
Place
- Habitat
- terrestrial
- New England state
-
- Massachusetts
- New Hampshire
- Vermont
- Specific habitat
-
- edges of forests
- man-made or disturbed habitats
-
Scent
- Plant odor
- the leaves have no particular smell
-
Stem, shoot, branch
- Flowering stem leaves
- there is at least one fully-formed leaf on the flowering stem
Wetland status
Not classified
In New England
Distribution
- Connecticut
- absent
- Maine
- absent
- Massachusetts
- present
- New Hampshire
- present
- Rhode Island
- absent
- Vermont
- present
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
2. Polygonatum latifolium (P. Mill.) Desf. E
broad-leaved Solomon’s-seal. Convallaria latifolia P. Mill.; Polygonatum hirtum (Bosc ex Poir.) Pursh • MA, NH, VT. Roadsides, forest fragments.
Native to North America?
No
Sometimes confused with
- Polygonatum biflorum:
- leaves without hairs and tepal lobes 4-6.5 mm long (vs. P. latifolium, with leaves hairy on veins of undersurface and tepal lobes 2-3 mm long).
- Polygonatum pubescens:
- tepals green-yellow and filaments papillose (vs. P. latifolium, with tepals white with green at apex and filaments smooth, glabrous or pubescent).
Synonyms
- Convallaria latifolia P. Mill.
- Polygonatum hirtum (Bosc ex Poir.) Pursh