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Hieracium caespitosum

Hieracium caespitosum Dumort.

Hieracium pratense Tausch

Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderAsteralesFlowering plants with a central disk flower and surrounding petals, like daisies
FamilyAsteraceaeThe aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
GenusHieraciumFrom Greek hierakion, “a hawk,” from Pliny’s belief that hawks strengthened their eyesight by eating these plants
SpeciescaespitosumFrom caespes, “a turf, sod, or field”

About plant names...

Meadow hawkweed is a European native, apparently introduced to the United States in 1828 as an ornamental plant. It escaped and is now widespread.

Identification: Plants consist of a basal rosette with 3-8 or more leaves, and many tall, thin relatively bare flower stems 10-36" (25-91 cm) high. Stems, leaves, and stolons exude a milky latex when cut. Stems have dense hairs ¹/₃₂-⅛" (1-4 mm) long, softer toward the bottom, stiffer toward the top. The basal leaves are 2-10" (5-25 cm) long and ½-1¼" (1.3-3.2 cm) wide. They are variable in appearance, oblong lanceolate to elliptic in shape, with blunt or pointed tips, sometimes toothed. Each stem is topped with a flat-topped or umbrella-shaped cluster of 5-30 yellow flowers. Flowers appear from May to August, and are ½-1" (1.3-2.5 cm) across.

This hawkweed comparison table is an aid to identifying hawkweeds and similar-appearing species.

Online References:

Hieracium caespitosum on michiganflora.net

Hieracium caespitosum at the University of Wisconsin's Robert W. Freckmann Herbarium

Hieracium caespitosum at Minnesota Wildflowers

Hieracium caespitosum on the Connecticut Botanical Society's Connecticut wildflowers site

Hieracium caespitosum on Erv Evans' site at the North Carolina State University College of Agriculture and Life Sciences

Hieracium caespitosum on the USDA Forest Service's Fire Effects Information Database

Hieracium caespitosum on eFloras

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

8/20/2010 · Nashua River Rail Trail, Ayer, MA
≈ 4½ × 6" (11 × 14 cm) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

6/22/2010 · Nashua River Rail Trail, Ayer, MA
≈ 9 × 6" (22 × 14 cm) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

5/22/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 5 × 3½" (13 × 9.2 cm) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

6/1/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 12 × 8" (31 × 20 cm) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

6/1/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 10 × 15" (26 × 39 cm) ID is uncertain

Hieracium caespitosum description by Thomas H. Kent, last updated 15 Oct 2013.

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Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

6/2/2010 · J. Harry Rich State Forest, Groton, MA
≈ 6 × 6" (14 × 14 cm) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

9/19/2009 · Acadia National Park, Bar Harbor, ME
≈ 3 × 4½" (7.9 × 11 cm) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

6/5/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 3 × 4" (8.5 × 9.9 cm) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

6/1/2010 · Nashua River Rail Trail, Groton Center, Groton, MA
≈ 3½ × 2½' (1.2 × 0.8 m) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

8/20/2010 · Nashua River Rail Trail, Ayer, MA
≈ 8 × 12" (20 × 31 cm) ID is uncertain

Hieracium caespitosum (Field Hawkweed, Yellow Hawkweed, Meadow Hawkweed, King Devil, Yellow Paintbrush, Devil’s Paintbrush, Yellow Devil, Yellow Fox-and-cubs, Yellow King-devil)

9/19/2009 · Acadia National Park, Bar Harbor, ME
≈ 4½ × 3" (11 × 7.9 cm) ID is uncertain

Range:

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