dcsimg
Image of Hall's hawksbeard
Creatures » » Plants » » Dicotyledons » » Composite Family »

Fiddleleaf Hawksbeard

Crepis runcinata (James) Torr. & A. Gray

Comments

provided by eFloras
Crepis runcinata is recognized by its basal rosettes of weakly dentate or almost entire leaves, scapiform stems, branching near middles, and reduced cauline leaves. The stems and leaves are usually glabrous. Multiple subspecies were described by E. B. Babcock (1947); the variation is continuous. Babcock suggested that this is the only American species that shows a relationship to Asian species.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 224, 235, 236 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
Perennials, 15–65 cm (taproots relatively long, caudices swollen). Stems 1–3, erect or ascending, scapiform, branched near middles, glabrous or hispid, sometimes stipitate-glandular distally. Leaves mostly basal (rosettes); petiolate; blades elliptic, lanceolate, linear, oblanceolate, obovate, or spatulate, 3–30 × 0.5–8 cm (bases attenuate) margins usually entire or weakly dentate, sometimes serrate, dentate, or pinnately lobed, apices rounded, faces glabrous or hispid to hispidulous (sometimes glaucous). Heads (1–)3–15(–30), borne singly or in ± corymbiform arrays. Calyculi of 5–12, narrowly triangular, glabrous or tomentulose bractlets 1–3 mm. Involucres turbinate-campanulate, 7–21 × 8–12 mm. Phyllaries 10–16, lanceolate or oblong, 8–10 mm, (bases keeled and thickened, margins scarious) apices usually acute, sometimes attenuate or obtuse (often ciliate-tufted), abaxial faces glabrous or tomentulose, sometimes stipitate-glandular, adaxial glabrous. Florets 20–50; corollas golden yellow, 9–18 mm. Cypselae dark to golden reddish or yellowish brown, fusiform, 3.5–8 mm, tapered distally or beaked, ribs 10–13 (strong); pappi white, 4–9 mm.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 224, 235, 236 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Synonym

provided by eFloras
Hieracium runcinatum E. James, Account Exped. Pittsburgh 1: 453. 1823
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 224, 235, 236 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Crepis runcinata

provided by wikipedia EN

Crepis runcinata is a North American species of flowering plant in the family Asteraceae known by the common name fiddleleaf hawksbeard. It is native to western and central Canada (from British Columbia to Manitoba), the western and central United States (from the Pacific as far east as Minnesota, Iowa, western Kansas and northwestern Texas) and northern Mexico (Chihuahua).[2]

Crepis runcinata grows in many types of habitats. It is a variable species with many subspecies. In general it is a perennial herb growing an erect, hairless, mostly leafless, unbranching stem up to about 80 centimeters (32 inches) tall from a taproot. The hairless leaves are arranged about the base of the plant in a rosette, each somewhat narrowly oval with many toothlike triangular lobes or sometimes lacking lobes. The inflorescence produces flower heads with hairy, glandular phyllaries and many yellow ray florets but no disc florets. The fruit is a small achene with a pappus.[3][4]

Subspecies[1][3]

References

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Crepis runcinata: Brief Summary

provided by wikipedia EN

Crepis runcinata is a North American species of flowering plant in the family Asteraceae known by the common name fiddleleaf hawksbeard. It is native to western and central Canada (from British Columbia to Manitoba), the western and central United States (from the Pacific as far east as Minnesota, Iowa, western Kansas and northwestern Texas) and northern Mexico (Chihuahua).

Crepis runcinata grows in many types of habitats. It is a variable species with many subspecies. In general it is a perennial herb growing an erect, hairless, mostly leafless, unbranching stem up to about 80 centimeters (32 inches) tall from a taproot. The hairless leaves are arranged about the base of the plant in a rosette, each somewhat narrowly oval with many toothlike triangular lobes or sometimes lacking lobes. The inflorescence produces flower heads with hairy, glandular phyllaries and many yellow ray florets but no disc florets. The fruit is a small achene with a pappus.

Subspecies Crepis runcinata subsp. andersonii (A.Gray) Babc. & Stebbins – California, Nevada Crepis runcinata subsp. barberi (Greenm.) Babc. & Stebbins – Arizona, Nevada, New Mexico, Chihuahua. Crepis runcinata subsp. glauca (Nutt.) Babc. & Stebbins – Alberta, Manitoba, Saskatchewan; Arizona, Colorado, Idaho, Montana, North Dakota, Nevada, New Mexico, North Dakota, South Dakota, Texas, Utah, Wyoming Crepis runcinata subsp. hallii Babc. & Stebbins – California, Nevada Crepis runcinata subsp. hispidulosa (Howell ex Howell) Babc. & Stebbins – Alberta, Saskatchewan; Colorado, Idaho, Montana, North Dakota, Oregon, Utah, Washington, Wyoming Crepis runcinata subsp. imbricata Babc. & Stebbins – Nevada, Oregon Crepis runcinata subsp. runcinata – Alberta, British Columbia, Manitoba, Saskatchewan; Colorado, Idaho, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN