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Typha angustifolia — narrow-leaved cat-tail

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Facts

Narrow-leaved cattail and its close relative broad-leaved cattail (Typha latifolia) can be difficult to distinguish, and often hybridize, further complicating identification. It is introduced to New England, where it has become widespread and often out-competes native marsh species to form dense monocultures. Narrow-leaved cattail is most frequently found along the coastal plain in salt and brackish marshes, as well as in ditches along heavily-salted roads.

Habitat

Anthropogenic (man-made or disturbed habitats), brackish or salt marshes and flats, marshes, wetland margins (edges of wetlands)

New England distribution

Adapted from BONAP data

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North America distribution

Adapted from BONAP data

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Characteristics

Habitat
  • aquatic
  • wetlands
New England state
  • Connecticut
  • Maine
  • Massachusetts
  • New Hampshire
  • Rhode Island
  • Vermont
Stem shape in cross-section
the stem is round or oval in cross-section
Leaf blade width
3–12 mm
Leaf blade cross-section
the leaf blade is flat or rolled in at the edges
Inflorescence position
the inflorescence is at the tip of the plant
Inflorescence branching
the inflorescence is on one or more stems with no branches
Fruit type (general)
the fruit is like a seed, and surrounded by hairs
Fruit length
5–7 mm
Leaf position on plant
some leaf attachment points are above the midpoint of the stem
Perianth composition
  • there are long, thin hairs attached at the base of the achene
  • there are three bristles and three scales on narrow stalks, attached at the base of the achene
Fruit cross-section
the fruit is triangular to terete (circular) in cross-section
Show all characteristics

  • Flowers

    Anther color (dry)
    the anthers range in color from white to tan or yellow to yellow-brown
    Anther length
    1.5–2 mm
    Floral bristle color
    the bristles are pale brown to brown
    Floral scale hairs
    NA
    Floral scale length
    0–6 mm
    Floral scale nerves
    NA
    Floral scale shape
    the floral scales are linear (very narrow, with more or less parallel sides)
    Inflorescence bract position (Sparganium)
    NA
    Inflorescence bracts
    there are at least two bracts, and they are either flat or folded or rolled in at the edges
    Inflorescence branching
    the inflorescence is on one or more stems with no branches
    Inflorescence crowding
    the inflorescence is crowded together in one tight cluster
    Inflorescence position
    the inflorescence is at the tip of the plant
    Inflorescence shape
    the aggregations within the inflorescence are roughly circular (not flattened) in cross-section
    Inflorescence type
    there are two cylindrical spikes, with one higher than the other
    Perianth composition
    • there are long, thin hairs attached at the base of the achene
    • there are three bristles and three scales on narrow stalks, attached at the base of the achene
    Stamen number
    3
    Stigma number
    1
    Style division
    the style is undivided, or divided only near the tip

  • Fruits or seeds

    Achene beak length
    0 mm
    Achene surface texture
    NA
    Achene tubercle relative width
    NA
    Achene tubercle width
    0 mm
    Capsule relative length
    NA
    Fruit cross-section
    the fruit is triangular to terete (circular) in cross-section
    Fruit length
    5–7 mm
    Fruit type (general)
    the fruit is like a seed, and surrounded by hairs
    Fruit type (specific)
    the fruit is a wind-dispersed follicle (has one ovary that splits along one side to release the seeds)
    Locules in capsule
    NA
    Seed length
    0 mm
    Seed tail relative length
    0 mm
    Seed tails
    NA
    Tubercle height
    0 mm

  • Growth form

    Lifespan
    the plant lives more than two years
    Rhizome thickness
    5–40 mm
    Underground organs
    the plant has a rhizome (a horizontal underground stem with roots growing from it)

  • Leaves

    Auricle texture
    the auricles are weak, papery and translucent
    Auricles
    the leaf sheath has auricles on it
    Leaf blade cross-section
    the leaf blade is flat or rolled in at the edges
    Leaf blade width
    3–12 mm
    Leaf form
    all the leaves hold their form out of water
    Leaf position on plant
    some leaf attachment points are above the midpoint of the stem
    Leaf septa
    the leaf blades do not have transverse septa
    Leaf sheath hairs
    the leaf sheathes are without hairs
    Pedicel length (Typha)
    0.5–0.7 mm
    Stem leaf blades
    there are fully-developed leaves with leaf blades on the main stem
    Width of seed-producing inflorescence
    10–20 mm

  • Place

    Habitat
    • aquatic
    • wetlands
    New England state
    • Connecticut
    • Maine
    • Massachusetts
    • New Hampshire
    • Rhode Island
    • Vermont
    Specific habitat
    • brackish or salt marshes and flats
    • edges of wetlands
    • man-made or disturbed habitats
    • marshes

  • Stem, shoot, branch

    Plant height
    150–300 cm
    Stem shape in cross-section
    the stem is round or oval in cross-section
    Stem texture near tip
    the stem feels smooth near the tip
    Stem thickness at midpoint
    2–3 mm

Wetland status

Occurs only in wetlands. (Wetland indicator code: OBL)

In New England

Distribution

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

Conservation status

Exact status definitions can vary from state to state. For details, please check with your state.

Maine
unranked (S-rank: SNR)
Massachusetts
widespread (S-rank: S5)

From Flora Novae Angliae dichotomous key

1.  Typha angustifolia L. E

narrow-leaved cat-tail. Typha angustifolia L. var. elongata (Dudley) Wieg. • CT, MA, ME, NH, RI, VT; most abundant on the coastal plain and along heavily traveled throughways. Saline and brackish marshes, ditches near heavily salted highways.

1×2. Typha angustifolia × Typha latifolia → Typha ×‌glauca Godr. is an often robust, cat-tail hybrid that is more common in wetlands with a history of human disturbance. It is known from CT, MA, ME, NH, RI, VT and is characterized by carpellate spikes 19–25 mm thick in fruit, usually separated from the staminate spike by a short distance, compound pedicels of the denuded axis 0.6–2 mm tall, carpellate bracteoles present (but inconspicuous and evident only at magnification), and brown staminate scales. Additionally, the stigmas are 0.06–0.11 mm wide at the widest point and usually more resemble T. angustifolia (i.e., they are relatively narrow).

Native to North America?

No

Sometimes confused with

Typha latifolia:
fruiting spikes mostly 24-36 mm thick and widest leaves mostly 24-36 mm wide when fresh (vs. T. angustifolium, with the fruiting spikes 13-22 mm thick and widest leaves 4-12 mm wide when fresh).

Synonyms

  • Typha angustifolia var. elongata (Dudley) Wieg.

Family

Typhaceae

Genus

Typha