Hieracium sabaudum L.
New England hawkweed, Savoy hawkweed
New England hawkweed is actually native to Europe, but naturalized in parts of North America. It is considered a noxious weed in Washington state.
Plants: Up to 2′ (65 cm) tall. Stems have hairs 1/16–⅛″ (2–3 mm) long.
Leaves: Alternate, Usually toothed, with cuneate bases. Most hawkweeds have basal leaves, but New England hawkweed’s leaves are all cauline—growing on the stem. They are approximately lanceolate in shape, and 1–3 ⨉ ⅜–⅞″ (3–8 ⨉ 1–2.5 cm).
Flowers: Flowerheads contain 25-30 or more flowers. Each flower has 40-60 ray florets only, no disc florets. Flowers appear in August to September.
Fruits: Cypselae are columnar, 1/16–⅛″ (2.5–3 mm), with pappi (little parachutes) with about 60 bristles.
Habitats: Fields, roadsides, grasslands, open forests, and disturbed soils.
Online References:
Hieracium vagum Jord.
10/6/2011 · Pack Monadnock, 2200', Peterborough, New Hampshire · ≈ 15 × 10″ (39 × 26 cm) 
10/6/2011 · Pack Monadnock, 2200', Peterborough, New Hampshire · ≈ 3 × 3½″ (7.4 × 9.7 cm) 
10/6/2011 · Pack Monadnock, 2200', Peterborough, New Hampshire · ≈ 3 × 3″ (8.3 × 8.1 cm) 
10/6/2011 · Pack Monadnock, 2200', Peterborough, New Hampshire · ≈ 10 × 15″ (24 × 37 cm) 
9/8/2021 · Cathance River Nature Preserve, Topsham, Maine · ≈ 4½ × 3″ (11 × 8.2 cm) 
9/8/2021 · Cathance River Nature Preserve, Topsham, Maine · ≈ 6 × 3½″ (14 × 9.4 cm) 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
| Subclass | Asteridae | A large class that encompasses asters |
| Order | Asterales | Flowering plants with a central disk flower and surrounding petals, like daisies |
| Family | Asteraceae | The aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers |
| Genus | Hieracium | From Greek hierakion, “a hawk,” from Pliny’s belief that hawks strengthened their eyesight by eating these plants |
| Species | sabaudum | Of Savoy, a region in France where the plant was first described |
Hieracium sabaudum description by Thomas H. Kent, not updated.
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