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Wooly Cottonflower

Gossypianthus lanuginosus (Poir.) Moq.

Description

provided by eFloras
Plants 1-7 dm diam. Stems prostrate to decumbent, 0.4-1 mm diam., sparsely pilose to strongly woolly-villous with whitish, straight to wavy-crinkled hairs. Leaves basal and cauline; basal leaves with petiole 0.5-2 cm, blade linear or linear-oblanceolate to spatulate, 1.6 -9.7 × 0.2-1(-1.7) cm; cauline leaves with winged petiole 1-5 mm, blade ovate, elliptic-ovate elliptic, oblong-elliptic, oblong, or oblong-ovate, (0.1-)0.5-1.8(-3.3) × (0.1-)0.2-0.7 (-1.3) cm, glabrous or sparsely to densely pilose to strigose. Glomerules white, globose to cylindric, 1-10 × 5-8 mm. Flowers sessile; tepals green, oblong-lanceolate, outer tepals 2.5-4 mm, inner tepals 2.5-3.6 mm, chartaceous, apex acuminate, woolly-villous on exposed surfaces. Utricles included within tepals, 1.4-2 mm. Seeds 0.8-1.2 × 0.6-0.9 mm.
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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. 4: 436, 438 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Synonym

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Paronychia lanuginosa Poiret in J. Lamarck et al., Encycl., suppl. 4: 303. 1816; Guilleminea lanuginosa (Poiret) Moquin-Tandon ex Bentham & Hooker f.
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. 4: 436, 438 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

Comprehensive Description

provided by North American Flora
Gossypianthus lanuginosus (Poir.) Moq. in DC. Prodr. 13 2 : 337
1849.
Paronychia lanuginosa Poir. in Lam. Encyc. Suppl. 4: 303. 1816. 'Gossypianthus rigidifiorus Hook. Ic. pi. 251. 1840.
Celosia pjloselloides Poit.; Moq. in DC. Prodr. 13 2 : 337, as synonym. 1849. Achyranthes piloselloides Poit.; Moq. in DC. Prodr. 13 2 : 337, as synonym. 1849. Illecebrum lanuginosum Poir.; Moq. in DC. Prodr. 13 2 : 337, as synonym. 1849. Guilleminea lanuginosa Benth. & Hook. Gen. PL 3: 37. 1880.
Caudex simple, lanate; stems numerous, ascending or prostrate, 1-2 dm. long, stout or
slender, much branched, lanate, sometimes glabrate in age; basal leaves petiolate, the blades
oblong-oblanceolate to obovate-spatulate, 1.5-6.5 cm. long, 3-10 mm, wide, obtuse or rounded
at the apex, long-attenuate at the base, sparsely appressed-pilose or glabrate on the upper surface, pilose-sericeous beneath or glabrate; cauline leaves on very short, broad petioles, the blades oval, orbicular-oval, or rounded-obovate, 5-10 mm. long, 3-8 mm. wide, obtuse or acutish, pilose-strigose above, densely pilose-sericeous beneath; flowers glomerate or capitate, the inflorescence equaling or shorter than the subtending leaves * bracts ovate, acute or acuminate, shorter than the flowers; calyx 2.5-3 mm. long, densely lanate, the sepals lanceolate to lance-linear, acuminate, 3-nerved, green along the nerves, elsewhere white and scarious; filaments linear, or dilated at the base; seed 1 mm. long, brown, shining.
Type locality: Santo Domingo.
Distribution: In dry soil, southern and western Texas to Chihuahua and Tamaulipas; Hispaniola.
license
cc-by-nc-sa-3.0
bibliographic citation
Paul Carpenter Standley. 1917. (CHENOPODIALES); AMARANTHACEAE. North American flora. vol 21(2). New York Botanical Garden, New York, NY
original
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North American Flora