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- Galinsoga quadriradiata
Galinsoga quadriradiata — common quickweed, shaggy soldier
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Facts
Common quickweed, also called Peruvian daisy after its country of origin, is a weedy introduction to much of the world. It matures and produces seeds very rapidly, allowing it to spread quickly in disturbed areas such as gardens, waste areas, roadsides and the cracks in sidewalks.
Habitat
Anthropogenic (man-made or disturbed habitats)
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
-
- Connecticut
- Maine
- Massachusetts
- New Hampshire
- Rhode Island
- Vermont
- Leaf type
- leaves are simple (i.e., lobed or unlobed but not separated into leaflets)
- Leaf arrangement
- opposite: there are two leaves per node along the stem
- Leaf blade edges
- the edge of the leaf blade has teeth
- Flower type in flower heads
- the flower head has tubular disk flowers in the center and ray flowers, these often strap-shaped, around the periphery
- Ray flower color
-
- pink to red
- white
- 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
- 20–60 mm
- Disk flower number
-
- 11-20
- 21-50
-
Flowers
- Bases of bract appendages
- NA
- Bract shape
- the main bracts are ovate (egg-shaped)
- Bract tip orientation
- the bracts are pressed against the plant, or spreading out at the tips
- Disk flower color
- yellow
- Disk flower lobe number
- 5
- Disk flower number
-
- 11-20
- 21-50
- Disk flower reproductive parts
- the disk flower has both pollen- and seed-producing parts
- 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 papery scales on it
- Flower head profile
- the disk is conical across the top
- Flower head shape
- the flower head is hemispherical (like the bottom half of a sphere)
- Flower type in flower heads
- the flower head has tubular disk flowers in the center and ray flowers, these often strap-shaped, around the periphery
- Inflorescence branching (Solidago)
- NA
- Inflorescence shape
- the inflorescence is not flat-topped but appears rounded, with some flower heads distinctly higher than others
- Ovary hairs
- the ovary has hairs on it
- Ovary profile
- in profile, the ovary is lanceolate (widest below the middle, tapering to both ends)
- Peduncle hair type
- the hairs on the peduncles have glands at their tips
- Peduncle hairs
- the peduncles are hairy
- Peduncle length
- 5–20 mm
- Ray flower color
-
- pink to red
- white
- Ray flower reproductive parts
- the ray flowers have carpels or stamens, but not both
- Ray flowers
-
- 1-5
- 6-10
- Ray length
- 0.9–2.5 mm
- Reproductive system
- some of the flowers on the plant have only carpels or stamens, while others have both carpels and stamens
- Style branch number
- the style has two branches
- Width of flower head base
- 3–6 mm
-
Fruits or seeds
- Number of pappus parts
-
- 1
- 10
- 11 or more
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- Ovary length in developed fruit
- 1.3–2 mm
- Seed hair tuft bases
- NA
- Seed hair tuft color
- NA
- Seed hair tuft details
- NA
- Seed hair tuft length
- 0.2–1.7 mm
- Seed hair tuft tips
- NA
- Seed hairs uniform
- NA
- Seed tuft scale number
- 0–20
- Seed tuft type
- the pappus is made of flat scales that are not split or frayed at the tips
- Top of disk flower ovary
- NA
- 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
- Leaf blade glands
- the leaf blades have no glandular (translucent) dots or scales
- Sap
- the sap is clear and watery
-
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 are only slender roots on the plant
- there is a thickened taproot on the plant
-
Leaves
- Final leaf segment length (compound lvs only)
- 0 mm
- Final leaf segment width (compound lvs only)
- 0 mm
- Hairs on underside of leaf blade
- the underside of the leaf is fuzzy or hairy
- Leaf arrangement
- opposite: there are two leaves per node along the stem
- Leaf blade base
-
- the leaf has a distinct petiole
- the leaf has no 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
- the base of the leaf blade is rounded
- Leaf blade bloom
-
- the underside of the leaf has no noticeable bloom
- there is a noticeable powdery or waxy bloom on the underside of the leaf
- Leaf blade edges
- the edge of the leaf blade has teeth
- Leaf blade length
- 20–60 mm
- Leaf blade shape
-
- the leaf blade is elliptic (widest near 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
- there is no noticeable color variation on the upper surface of the leaf
- 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 blade veins
- the leaf blade has three main veins running from the base towards the tip
- Leaf blade width
- 15–45 mm
- Leaf disposition
- the leaves are nearly similar in size, prominence of teeth, and length of stalks throughout the stem
- Leaf spines
- there are no spines on the leaf edges
- Leaf stalk
-
- the leaves have leaf stalks
- the leaves have no leaf stalks, but attach directly to the stem
- Leaf stalk length
- 0–60 mm
- Leaf tip extension
- NA
- Leaf type
- leaves are simple (i.e., lobed or unlobed but not separated into leaflets)
- Leaflet number
- 0
- Specific leaf type
- the leaves are simple (i.e., lobed or unlobed but not separated into leaflets
-
Place
- Habitat
- terrestrial
- New England state
-
- Connecticut
- Maine
- Massachusetts
- New Hampshire
- Rhode Island
- Vermont
- Specific habitat
- man-made or disturbed habitats
-
Scent
- Plant odor
- the plant does not have much of an odor
-
Stem, shoot, branch
- Flowering stem cross-section
- the flowering stem is circular, or with lots of small angles
- Leaves on stem
- there is at least one full leaf above the base of the flowering stem
- Stem bloom
- there is no powdery or waxy film on the stem
- Stem internode hair direction
- the hairs point mostly upwards to outwards
- Stem internode hairs
- the stem has hairs between the nodes
- Stem wings
- the stem does not have wings on it
Wetland status
Usually occurs in non-wetlands, but occasionally in wetlands. (Wetland indicator code: FACU)
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.
- Massachusetts
- not applicable (S-rank: SNA)
From Flora Novae Angliae dichotomous key
2. Galinsoga quadriradiata Ruiz & Pavón E
common quickweed. Galinsoga aristulata Bickn.; G. bicolorata St. John & White; G. ciliata (Raf.) Blake; G. caracasana (DC.) Schultz-Bip. • CT, MA, ME, NH, RI, VT. Gardens, cultivated fields, barnyards, waste areas, roadsides.
Native to North America?
No
Sometimes confused with
- Eclipta prostrata:
- capitula with 20-40 ray flowers and leaf blades narrow-lanceolate to lanceolate, 4-30 mm wide (vs. G. quadriradiata, with capitula with 3-8 ray flowers and leaf blades lanceolate to broad-ovate, 15-45 mm wide).
- Galinsoga parviflora:
- scales at summit of ovary (the pappus) of disk flowers not terminating in a bristle tip and ray flowers without scales at summit of ovary or these poorly developed (vs. G. quadriradiata, with scales at summit of ovary (the pappus) of disk flowers terminating in a bristle tip and ray flowers with scales at summit of ovary).
Synonyms
- Galinsoga aristulata Bickn.
- Galinsoga bicolorata St. John & White, Galinsoga ciliata (Raf.) Blake, Galinsoga caracasana (DC.) Schultz-Bip.