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- Chenopodium rubrum
Chenopodium rubrum — red goosefoot
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Facts
There are two varieties of red goosefoot found in New England. One (C. rubrum var. humile) is introduced (it is native in the western states), and is occasionally found in Massachusetts and Maine in disturbed soils and ditches. The other (C. rubrum var. rubrum) is a rare native plant primarily of salt marshes. The Gosiute People used the seeds of this plant for food.
Habitat
Anthropogenic (man-made or disturbed habitats), brackish or salt marshes and flats, intertidal, subtidal or open ocean
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
-
- aquatic
- terrestrial
- wetlands
- New England state
-
- Connecticut
- Maine
- Massachusetts
- New Hampshire
- Flower petal color
- NA
- Leaf type
- the leaves are simple (lobed or unlobed but not separated into leaflets)
- Leaf arrangement
- alternate: there is one leaf per node along the stem
- Leaf blade edges
-
- the edge of the leaf blade has teeth
- the edge of the leaf blade is entire (has no teeth or lobes)
- Flower symmetry
- there are two or more ways to evenly divide the flower (the flower is radially symmetrical)
- Number of sepals, petals or tepals
-
- there are four petals, sepals, or tepals in the flower
- there are three petals, sepals, or tepals in the flower
- Fusion of sepals and petals
- the petals or the sepals are fused into a cup or tube
- Stamen number
-
- 1 or 2
- 3
- Fruit type (general)
- the fruit is dry but does not split open when ripe
-
Clonal plantlets
- Bulbils
- the plant does not appear to have bulbils
- Bulblets replace flowers
- there are no bulblets where the flowers are located
-
Flowers
- Anther opening
- the anthers have narrow slits or furrows that run lengthwise along the anthers
- Anther spurs
- the anthers do not have spurs on them
- Calyx symmetry
- there are two or more ways to evenly divide the calyx (the calyx is radially symmetrical)
- Carpels fused
- the carpels are fused to one another
- Cleistogamous flowers
- there are no cleistogamous flowers on the plan
- Corolla morphology
- NA
- Corolla palate
- NA
- Corona lobe length
- 0 mm
- Epicalyx
- the flower does not have an epicalyx
- Epicalyx number of parts
- 0
- Filament surface
- the filament is smooth, with no hairs or scales
- Flower description
- the flower has a superior ovary, and lacks a hypanthium
- Flower petal color
- NA
- Flower symmetry
- there are two or more ways to evenly divide the flower (the flower is radially symmetrical)
- Flowers sunken into stem
- no
- Form of style
-
- NA
- the style is unbranched, but it has two or more narrow appendages that are part of the stigma
- Fused stamen clusters
- NA
- Fusion of sepals and petals
- the petals or the sepals are fused into a cup or tube
- Horns in hoods (Asclepias)
- NA
- Hypanthium
- the flower does not have a hypanthium
- Inflorescence one-sided
- the flowers are arrayed in a spiral around the inflorescence axis or branches, or occur singly, or in several ranks
- Inner tepals (Rumex)
- NA
- Nectar spur
- the flower has no nectar spurs
- Number of pistils
- 1
- Number of sepals, petals or tepals
-
- there are four petals, sepals, or tepals in the flower
- there are three petals, sepals, or tepals in the flower
- Number of styles
- 2
- 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 and sepal colors
- green to brown
- Petal appearance
- NA
- Petal folds or pleats
- NA
- Petal hairs (Viola)
- NA
- Petal number
- 0
- Petal tip shape
- NA
- Petal tips (Cuscuta)
- NA
- Reproductive system
- all the flowers have both carpels and stamens (synoecious)
- Scales inside corolla
- NA
- Sepal and petal color
- NA
- Sepal appendages
- the sepals do not have appendages on them
- Sepal appendages (Oenothera)
- NA
- Sepal number
- 3–4
- Stamen attachment
- the stamens are not attached to the petals or tepals
- Stamen number
-
- 1 or 2
- 3
- Stamen position relative to petals
-
- NA
- the stamens are lined up with the sepals
- Staminodes
- there are no staminodes on the flower
- Umbel flower reproductive parts
- NA
- Upper lip of bilabiate corolla
- NA
-
Fruits or seeds
- Achene relative orientation
-
- the achenes are parallel to the plane of the perianth (horizontal)
- the achenes are perpendicular to the plane of the perianth (vertical)
- Achene shape
-
- the achenes are another shape in outline
- the achenes are oval in outline
- Achene surface (Polygonum)
- NA
- Achene type
- the fruit is a utricle (a type of achene in which the pericarp is loosely attached and often readily removed)
- Berry color
- NA
- Capsule color (Viola)
- NA
- Capsule ribs
- NA
- Capsule splitting
- NA
- Fruit (pyxis) dehiscence
- NA
- Fruit beak length
- 0 mm
- Fruit features (Brassicaceae)
- NA
- Fruit locules
- one
- Fruit shape
-
- the fruit is flat or strongly compressed
- the fruit is ovoid (egg-shaped)
- Fruit type (general)
- the fruit is dry but does not split open when ripe
- Fruit type (specific)
- the fruit is an achene (dry, usually one-seeded, does not separate or split open at maturity)
- Legumes (Fabaceae)
- NA
- Mericarp length
- 0 mm
- Mericarp segment shape (Desmodium)
- NA
- Other markings on berry
- NA
- Ovary stipe
- the ovary or fruit does not have a stipe
- Placenta arrangement
- the plant has basal placentation, where one or a few ovules develop at the base of a simple or compound ovary
- Rows of seeds in fruit (Brassicaceae)
- NA
- Schizocarpic fruit compression
- NA
- Schizocarpic fruit segments
- 0
- Septum in fruit (Brassicaceae)
- NA
- Wings on fruit
- the fruit does not have wings on it
- prickles on fruits
- the fruits do not have thorn-like defensive structures
-
Glands or sap
- Glands on leaf blade
- the leaf blades do not have glandular dots or scales
- Sap
- the sap is clear and watery
- Sap color
- the sap is clear
-
Growth form
- Horizontal rooting stem
- the plant does not have stolons
- Lifespan
- the plant lives only a single year or less
- Parasitism
- the plant is not parasitic
- Plant color
- the leaves or young stems of the plant are green
- Plants darken when dry
- no
- Spines on plant
- the plant has no spines
-
Leaves
- Bracteole number (Apiaceae)
- 0
- Bracts in plantain (Plantago)
- NA
- Final leaf segment length (compound lvs only)
- 0 mm
- Final leaf segment length to width ratio (compound lvs only)
- 0
- Final leaf segment width (compound lvs only)
- 0 mm
- Leaf arrangement
- alternate: there is one leaf per node along the stem
- 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 edges
-
- the edge of the leaf blade has teeth
- the edge of the leaf blade is entire (has no teeth or lobes)
- Leaf blade length
- 10–90 mm
- Leaf blade shape
-
- the leaf blade is rhombic (roughly diamond-shaped)
- the leaf blade is triangular, with the stalk or attachment point on one of the sides
- Leaf blade surface colors
- the upper side of the leaf blade is relatively uniform in color
- Leaf blade vein pattern
- the major veins of the leaf blade branch, but do not rejoin
- Leaf duration
- the leaves drop off in winter (or they whither but persist on the plant)
- Leaf form
- the leaves are green, with an expanded blade and a leaf-like texture
- Leaf spines
- there are no spines on the leaf edges
- Leaf stalk attachment to leaf
- the petiole attaches at the basal margin of the leaf blade
- Leaf stalk base
- the petiole base is narrow where it attaches to the stem
- Leaf type
- the leaves are simple (lobed or unlobed but not separated into leaflets)
- Leaf types
- There is a gradual change in appearance of the leaves from the base (or near the base) of the plant to those from further up on the stem, with leaves progressively changing as one moves higher on the stem (often becoming shorter, or less toothed/lobed, and/or with shorter petioles).
- Leaflet number
- 0
- Leaflet petiolules
- NA
- Leaves per node
- there is one leaf per node along the stem
- Pinnately compound leaf type
- NA
- Specific leaf type
- the leaves are simple (lobed or unlobed but not separated into leaflets)
- Stipels
- NA
- Stipule features
- NA
- Stipules
- there are no stipules on the plant
-
Place
- Habitat
-
- aquatic
- terrestrial
- wetlands
- New England state
-
- Connecticut
- Maine
- Massachusetts
- New Hampshire
- Specific habitat
-
- brackish or salt marshes and flats
- intertidal, subtidal or open ocean
- man-made or disturbed habitats
-
Scent
- Plant odor
- the plant does not have much of a smell
-
Stem, shoot, branch
- Branched tendrils
- NA
- Flowering stem cross-section
- the flowering stem is circular, or with lots of small angles so that it is roughly circular
- Hairs between stem nodes
- the stem has no hairs between the nodes
- Hooked hairs on stem between nodes
- no
- Leaves on stem
- there is at least one full leaf above the base of the flowering stem
- Plant height
- 10–80 cm
- Stem roughness between nodes
- the stem does not feel rough
- Tendril origin
- NA
- Tendrils
- the plant does not have tendrils
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
- absent
- Vermont
- absent
Conservation status
Exact status definitions can vary from state to state. For details, please check with your state.
- Connecticut
- historical (S-rank: SH), special concern, extirpated (code: SC*)
- Maine
- extremely rare (S-rank: S1), threatened (code: T)
- Massachusetts
- unranked (S-rank: SNR), #NAME? (code: #NAME?)
- New Hampshire
- extremely rare (S-rank: S1), endangered (code: E)
var. humile
- Massachusetts
- not applicable (S-rank: SNA)
var. rubrum
- Massachusetts
- uncommon (S-rank: S3)
From Flora Novae Angliae dichotomous key
12. Chenopodium rubrum L. n
red goosefoot. 12a. Chenopodium humile Hook. • CT, MA, ME, NH. Saline marshes; ditches and other disturbed sites in var. humile.
1a. Mature achenes 0.8–1 mm in diameter; sepals somewhat fleshy; inflorescence consisting of axillary glomerules; plants spreading-ascending, 3–18 (–25) cm tall; lower leaves subentire or nearly so, the blade 0.7–3 cm long … 12a. C. rubrum var. humile (Hook.) S. Wats.
1b. Mature achenes 0.5–0.6 mm in diameter; sepals herbaceous; inflorescence consisting, at least in part, of leafy-bracted spikes; plants erect, 30–60 (–80) cm tall; blades of lower leaves toothed, up to 15 cm long … 12b. C. rubrum var. rubrum
Variety humile is non-native and known from MA, ME. Variety rubrum is native and known from CT, MA, ME, NH; also reported from RI by George (1992), but specimens are unknown.