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Woolly Desert Marigold

Baileya pleniradiata Harvey & A. Gray

Comments

provided by eFloras
Baileya pleniradiata is superficially similar to B. multiradiata and autumnal forms of the latter have often been misidentified as the former (see discussion under B. multiradiata). The two species occasionally occur together or in proximity; hybrids have not been noted. Style appendages readily allow distinction between the two taxa.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 445, 446, 447 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description

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Plants mostly 15–45 cm. Leaves: basal rosettes not persistent; basal leaves mostly 2–7 × 0.5–2.5 cm; petioles 1–3 cm; blades oblanceolate, often pinnately lobed; cauline leaves gradually reduced distally. Heads borne singly. Peduncles 3–12 cm. Involucres hemispheric, mostly 5–8 × 7–12 mm Phyllaries mostly 21–34, floccose-tomentose. Rays mostly 20–40; laminae elliptic to obovate, mostly 7–10 × 4-7 mm, apices shallowly 3-toothed. Disc florets mostly 40–50; corollas 3 mm, tubes 0.3 mm, lobes 0.25 mm; style-branch apices acute. Cypselae 3 mm. 2n = 32.
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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. 21: 445, 446, 447 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
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eFloras

Synonym

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Baileya multiradiata Harvey & A. Gray var. perennis (A. Nelson) Kittell; B. multiradiata var. pleniradiata (Harvey & A. Gray) Coville; B. nervosa M. E. Jones; B. perennis (A. Nelson) Rydberg; B. pleniradiata var. perennis A. Nelson
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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. 21: 445, 446, 447 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
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eFloras

Comprehensive Description

provided by North American Flora
Baileya pleniradiata Harv. & Gray; A. Gray, Mem. Am. Acad. II
4: 105. 1849.
Baileya tnuUiradiata pleniradiata Coville, Contr. U. S. Nat. Herb. 4: 133. 1893. Baileya nervosa M. E. Jones, Contr. W. Bot. 8: 34. 1898.
A floccose annual; stem 2-3 dm. high, leafy, branched from the base, loosely woolly; lower leaves oblanceolate in outline, densely villous, 5-8 cm. long, more or less pinnatifid with linear or oblong divisions, the uppermost usually entire and linear; heads at the ends of the branches; peduncles 3-8 (rarely 9-10) cm. long; involucre hemispheric, about 8 mm. high and 10 mm. broad; bracts 20-30; ligules 20-35 (rarely 40), obovate-oval, 8-9 mm. long and about 6 mm. broad, undulately 3-toothed at the apex; disk-flowers 40-50; corollas 4 mm. long, glandulargranulif erous ; achenes tapering downward from the truncate apex, 4 mm. long, glandularscabrous, angled, some of the ribs being stronger.
Type locality: California.
Distribution: Southern part of California, Nevada, and Utah, western Arizona, and northern Sonora.
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bibliographic citation
Per Axel Rydberg. 1914. (CARDUALES); CARDUACEAE; HELENIEAE. North American flora. vol 34(1). New York Botanical Garden, New York, NY
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Comprehensive Description

provided by North American Flora
Baileya perennis (A. Nelson) Rydberg, sp. nov
Baileya pleniradiata perennis A. Nelson, Bot. Gaz. 47: 431. 1909.
A floccose perennial ; stem branched at or near the base, floccose ; branches erect, simple, leafy, about 3 dm. high; leaves 4-6 cm. long, nearly all pinnatifid with oblong or linear divisions, only the uppermost entire and linear; peduncles terminal, 5-15 cm. long; involucre hemispheric, 5-6 mm. high, 12-14 mm. broad; bracts 30 or more, linear-lanceolate; ligules 30-40, cuneateoblong, 10-12 mm. long, 4 mm. wide, tapering at the base, with 3 broadly ovate teeth; diskflowers numerous; corollas 4 mm. long, glandular-granuliferous; achenes 3.5 mm. long, glandular-granuliferous, tapering downward from the truncate summit, angled, the ribs of the angles much stronger than the rest. Forms intermediate between this and the next preceding and next following species are sometimes found.
Type locality: Moapa, Nevada.
Distribution: Southern Nevada to Arizona and Chihuahua.
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bibliographic citation
Per Axel Rydberg. 1914. (CARDUALES); CARDUACEAE; HELENIEAE. North American flora. vol 34(1). New York Botanical Garden, New York, NY
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Baileya pleniradiata

provided by wikipedia EN

Baileya pleniradiata is a North American species of flowering plant in the daisy family, known by the common name woolly desert marigold. It is native to desert regions of the southwestern United States and northern Mexico, where it grows in sandy habitats. It has been found in the States of Chihuahua,[2] Sonora, Baja California, Arizona, Utah, and Nevada.[3][4][5]

Description

Baileya pleniradiata is an annual herb producing a light gray-green to nearly white woolly branching stem up to half a meter in height. The leaves are up to 8 centimeters long and may split into a few lobes.[3]

Each inflorescence is composed of a single flower head which is borne on a peduncle up to 10 centimeters (4 inches) long. The flower head has a center of yellow disc florets surrounded by a fringe of ray florets, sometimes in two or more layers, each bright yellow and up to a centimeter in length. The fruit is a sharply angled achene a few millimeters long.[3]

References

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Baileya pleniradiata: Brief Summary

provided by wikipedia EN

Baileya pleniradiata is a North American species of flowering plant in the daisy family, known by the common name woolly desert marigold. It is native to desert regions of the southwestern United States and northern Mexico, where it grows in sandy habitats. It has been found in the States of Chihuahua, Sonora, Baja California, Arizona, Utah, and Nevada.

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