Microseris douglasii (DC.) Schultz-Bip.

Douglas' silverpuffs

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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

Native to California and Oregon, Douglas' silverpuffs was collected from the waste area of a wool carding factory in Massachusetts, undoubtedly an ephemeral occurrence.

Habitat

Anthropogenic (man-made or disturbed habitats)

Characteristics

Habitat
terrestrial
New England state
Massachusetts
Leaf type
leaves are simple (i.e., lobed or unlobed but not separated into leaflets)
Leaf arrangement
basal: the leaves are growing only at the base of the plant
Leaf blade edges
  • the edge of the leaf blade has lobes, or it has both teeth and lobes
  • the edge of the leaf blade has no teeth or lobes
  • the edge of the leaf blade has teeth
Flower type in flower heads
the flower head has ray flowers only, meaning all of the individual flowers of the flower head have a strap-shaped ray, which may or may not have teeth at the very tip of the ray
Ray flower color
  • white
  • yellow
Tuft or plume on fruit
there is no plume, or the plume is made up of scales, awns, a crown, or a rim
Spines on plant
the plant has no spines
Leaf blade length
30–250 mm
Disk flower number
0
Show All Characteristics
  • Flowers
    Bract cycle number
    there are two main cycles of bracts
    Bract inner side hairs
    • the bracts are hairy on their inner surfaces
    • the bracts are not hairy on their inner surfaces
    Bract outer side hair type
    • the bracts are hairy, with simple hairs on their outer surface
    • the bracts are not hairy on their outer surface
    Bract outer side hairs
    • the bracts are hairy on their outer surfaces
    • the bracts are not hairy on their outer surfaces
    Bract shape
    • the main bracts are lanceolate (widest above the base, then taper narrowly towards the tip)
    • the main bracts are of a different shape than the given options
    Bract spines
    the bracts have no spines
    Bracts
    there are at least two distinct forms of bracts in different cycles
    Disk flower color
    NA
    Disk flower lobe number
    NA
    Disk flower number
    0
    Disk flower proportions
    NA
    Disk flower reproductive parts
    NA
    Disk flower shape
    NA
    Flower head number
    • each flowering stem has four or more flower heads on it
    • each flowering stem has only one to three flower heads on it
    Flower head outer flowers
    at the outer edge of the flower head, each flower has a single enlarged lobe or strap
    Flower head platform
    the base has no bristles or papery scales
    Flower head position
    each of the flower heads is separate on its own peduncle (stalk), not clustered in groups
    Flower head profile
    • the disk is flat or nearly flat across the top
    • the disk is rounded across the top
    Flower head shape
    NA
    Flower type in flower heads
    the flower head has ray flowers only, meaning all of the individual flowers of the flower head have a strap-shaped ray, which may or may not have teeth at the very tip of the ray
    Height of flower head base
    7–16 mm
    Inflorescence branching (Solidago)
    NA
    Inflorescence shape
    NA
    Ovary beak
    there is a beak on the ovary
    Ovary cross-section
    the ovary has five or more corners in cross-section
    Ovary lines or ribs
    there are ten or more ribs visible on the ovary
    Ovary profile
    • in profile, the ovary is another shape
    • in profile, the ovary is oblong (roughly rectangular but rounded at the ends)
    Peduncle hair type
    NA
    Peduncle hairs
    the peduncles have no hairs
    Ray flower color
    • white
    • yellow
    Ray flower reproductive parts
    the ray flowers have both carpels and stamens
    Ray flowers
    • 1-5
    • more than 50
    Reproductive system
    NA
    Smaller bracts at base of bracts
    there is no smaller, outer cycle of bracts
    Swelling at base of flower head
    the peduncles are not swollen, or only slightly
  • Fruits or seeds
    Number of pappus parts
    • 1
    • 2
    • 3
    • 4
    • 5
    Ovary length in developed fruit
    3–10 mm
    Seed hair tuft color
    the pappus hairs are white or off-white
    Seed hair tuft details
    the pappus hairs are hooked or barbed
    Seed hair tuft length
    2–7 mm
    Seed hair tuft tips
    the pappus hairs are slender
    Seed tuft scale number
    0–1.5
    Seed tuft type
    the pappus is made of flat scales that are not split or frayed at the tips
    Tuft or plume on fruit
    there is no plume, or the plume is made up of scales, awns, a crown, or a rim
  • Glands or sap
    Sap
    the sap is milky and opaque, and may be white or colored
  • Growth form
    Growth form
    the plant has one or more free-standing stems
    Plant lifespan
    the plant is annual, it lacks evidence of previous years' growth
    Spines on plant
    the plant has no spines
    Underground organs
    there is a thickened taproot on the plant
  • Leaves
    Hairs on underside of leaf blade
    the underside of the leaf is fuzzy or hairy
    Hairs on upper side of leaf blade
    the upper side of the leaf is fuzzy or hairy
    Leaf arrangement
    basal: the leaves are growing only at the base of the plant
    Leaf blade base
    the leaf has a distinct 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 edges
    • the edge of the leaf blade has lobes, or it has both teeth and lobes
    • the edge of the leaf blade has no teeth or lobes
    • the edge of the leaf blade has teeth
    Leaf blade hairs
    the leaf blade has simple hairs with no glands, and not tangled or wooly
    Leaf blade length
    30–250 mm
    Leaf blade shape
    • the leaf blade is linear (very narrow with more or less parallel sides)
    • the leaf blade is oblanceolate (lance-shaped, but with the widest point above the middle of the leaf blade)
    Leaf blade tip
    • the tip of the leaf blade is acuminate (tapers to a long, thin point)
    • the tip of the leaf blade is acute (sharply pointed)
    Leaf disposition
    the lower leaves are larger, toothier, and/or on longer stalks than the upper leaves
    Leaf spines
    there are no spines on the leaf edges
    Leaf type
    leaves are simple (i.e., lobed or unlobed but not separated into leaflets)
    Specific leaf type
    the leaves are simple (i.e., lobed or unlobed but not separated into leaflets
  • Place
    Habitat
    terrestrial
    New England state
    Massachusetts
    Specific habitat
    man-made or disturbed habitats
  • Stem, shoot, branch
    Leaves on stem
    the flowering stem has no leaves above the base
    Stem internode hair direction
    the hairs point mostly upwards to outwards
    Stem internode hair type
    the hairs on the stem are plain, without glands or branches, and not tangled
    Stem internode hairs
    the stem has hairs between the nodes

Wetland Status

Occurs only in non-wetlands. (Wetland indicator code: UPL)

New England Distribution and Conservation Status

Distribution

Connecticut
absent
Maine
absent
Massachusetts
present
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)

ssp. douglasii

Massachusetts
unranked (S-rank: SNR)

Native to North America?

Yes and no (some introduced)

Sometimes Confused With

Krigia virginica:
pappus composed of two different elements, with 5 flat scales (these sometimes inconspicuous) along with 5–35 capillary bristles, and involucre composed of bracts of +/- equal length, 3–7 mm tall (vs. M. douglasii, with the pappus composed of only 5 or fewer bristle-tipped scales, and involucre composed of two dissimilar series of bracts, the outer ones much shorter than the inner ones, 7–16 mm tall).

Synonyms

  • Calais douglasii DC.

Family

Asteraceae

Genus

Microseris

Notes on Subspecies and Varieties in New England

Our subspecies is Microseris douglasii (DC.) Schultz-Bip. ssp. douglasii.

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Information from Dichotomous Key of Flora Novae Angliae

1.  Microseris douglasii (DC.) Schultz-Bip. ssp. douglasii E

Douglas’ silverpuffs. Calais douglasii DC. • MA. Wool waste.