- You are here:
- Dichotomous Key
- Asteraceae
- Asteraceae Group 1
- Hieracium
- Hieracium praealtum
Hieracium praealtum — tall hawkweed
Copyright: various copyright holders. To reuse an image, please click it to see who you will need to contact.
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.
Facts
Tall hawkweed is sometimes considered part of Hieracium piloselloides but differs in that its upper leaves are stellate hairy.
Habitat
Anthropogenic (man-made or disturbed habitats), meadows and fields
Characteristics
- Habitat
- terrestrial
- New England state
-
- Connecticut
- Maine
- Massachusetts
- New Hampshire
- Vermont
- Leaf type
- leaves are simple (lobed or unlobed but not separated into leaflets)
- Leaf arrangement
-
- alternate: there is one leaf per node along the stem
- the leaves are growing only at the base of the plant (basal)
- Leaf blade edges
-
- 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
- yellow
- Tuft or plume on fruit
- at least a part of the plume is made up of fine bristles
- Spines on plant
- the plant has no spines
- Disk flower number
- 0
-
Flowers
- Bases of bract appendages
- NA
- Disk flower color
- NA
- Disk flower lobe number
- 0
- Disk flower number
- 0
- Disk flower proportions
- NA
- Disk flower reproductive parts
- NA
- Disk flower shape
- NA
- 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 platform surface
- NA
- Flower head profile
- the disk is flat or nearly flat across the top
- 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
- Inflorescence branching (Solidago)
- NA
- Inflorescence shape
- the inflorescence is flat-topped in profile
- Ovary beak
- there is no beak on the ovary
- Ovary cross-section
- the ovary has five or more corners in cross-section
- Ovary hair type
- the ovary has no hairs on it
- Ovary hairs
- the ovary has no hairs on it
- Ovary lines or ribs
-
- there are seven to nine ribs visible on the ovary
- there are ten or more ribs visible on the ovary
- Peduncle hairs
- the peduncles are hairy
- Ray flower color
- yellow
- Ray flower reproductive parts
- the ray flowers have both carpels and stamens
- Reproductive system
- all the flowers on the plant contain both carpels and stamens
- Scale tip
- NA
- Style branch number
- there are no obvious branches on the style
-
Fruits or seeds
- Dispersal unit
- the seeds fall off or are dispersed separately from one another
- Ovary beak length
- 0 mm
- Seed hair tuft details
- the pappus hairs are hooked or barbed
- Seed tuft scale number
- 0
- Seed tuft type
- the pappus is made of very fine hairs or bristles
- Top of disk flower ovary
- NA
- Tuft or plume on fruit
- at least a part of the plume is made up of fine bristles
-
Glands or sap
- Leaf blade glands
- the leaf blades have no glandular (translucent) dots or scales
- 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
- Horizontal rooting stem
- there are no stolons
- Plant lifespan
- the plant is perennial, it shows evidence of previous year's leaves, stems or stem bases
- Spines on plant
- the plant has no spines
- Underground organs
- the plant has a rhizome (a horizontal underground stem with roots growing from it)
-
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
-
- alternate: there is one leaf per node along the stem
- the leaves are growing only at the base of the plant (basal)
- Leaf blade base
-
- the leaf has a distinct petiole
- the leaf has no petiole
- the leaf has no petiole and at the base it clasps the stem, or goes all the way around the stem so the stem appears to pierce the leaf
- Leaf blade 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 no teeth or lobes
- the edge of the leaf blade has teeth
- Leaf blade hairs
- the leaf blade has branched hairs
- Leaf blade surface colors
- there is no noticeable color variation on the upper surface of the leaf
- Leaf disposition
-
- the leaves are nearly similar in size, prominence of teeth, and length of stalks throughout the stem
- 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 stalk
-
- the leaves have leaf stalks
- the leaves have no leaf stalks, but attach directly to the stem
- Leaf tip extension
- NA
- Leaf type
- leaves are simple (lobed or unlobed but not separated into leaflets)
- Leaflet number
- 0
- Specific leaf type
- the leaves are simple (lobed or unlobed but not separated into leaflets
-
Place
- Habitat
- terrestrial
- New England state
-
- Connecticut
- Maine
- Massachusetts
- New Hampshire
- Vermont
- Specific habitat
-
- man-made or disturbed habitats
- meadows or fields
-
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
- Stem bloom
-
- the stem has a powdery or waxy film on it that can be rubbed away
- there is no powdery or waxy film on the stem
- Stem internode hairs
-
- the stem has hairs between the nodes
- the stem has no hairs between the nodes
- Stem wings
- the stem does not have wings on it
Wetland status
Not classified
New England distribution and conservation status
Distribution
- Connecticut
- present
- Maine
- present
- 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
- unranked (S-rank: SNR)
var. decipiens
- Massachusetts
- unranked (S-rank: SNR)
Native to North America?
No
Sometimes confused with
- Hieracium caespitosum:
- leaf blades green, without a bloom, with abundant hairs on the upper surface and series of involucral bracts 7.5-9 mm tall (vs. H. praealtum, with leaf blades with a thin bloom, with few or no hairs on the upper surface and series of involucral bracts mostly 5-6 mm tall). Hieracium piloselloides: flower head stalks and undersurface of leaf blades with few or no minute, branched hairs (vs. flower head stalks and undersurface of leaf blades with minute, branched hairs).
Synonyms
- Hieracium praealtum var. decipiens W.D.J. Koch
- Pilosella praealta (Vill. ex Gochnat) F.W. Schultz & Schultz-Bip.
Family
Genus
From the dichotomous key of Flora Novae Angliae
12. Hieracium praealtum Vill. ex Gochnat E
tall hawkweed. Hieracium praealtum Vill. ex Gochnat var. decipiens W.D.J. Koch; Pilosella praealta (Vill. ex Gochnat) F.W. Schultz & Schultz-Bip. • CT, MA, ME, NH, VT. Fields, roadsides, railroads, waste areas.