Comments
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Inglês
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fornecido por eFloras
Packera cana is found in a wide variety of habitats and in a wide range of elevations throughout the western Cordillera and into the High Plains. Morphology is relatively uniform throughout its range except that alpine specimens are notably dwarfed and are often mistaken for P. werneriifolia, which differs by its consistently scapiform habit.
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- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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Inglês
)
fornecido por eFloras
Perennials, 10–30+ cm; rhizomatous (rhizomes branched, suberect, stout). Stems 1 (per rosette, rosettes clustered), densely lanate or canescent. Basal leaves (and proximal cauline) petiolate; blades ovate or elliptic to lanceolate, 25–50+ × 10–30 mm, bases tapering, margins entire or irregularly undulate to weakly dentate (abaxial faces persistently lanate, adaxial lanate to subglabrescent). Cauline leaves gradually reduced (petiolate or sessile, then weakly clasping; elliptic to lanceolate, entire or weakly dentate). Heads 8–15+ in corymbiform arrays. Peduncles bracteate, usually densely lanate to floccose-tomentose (sometimes subglabrescent). Calyculi inconspicuous (bractlets tomentose). Phyllaries 13 or 21, green, 5–8+ mm, densely tomentose. Ray florets 8–10 (or 13); corolla laminae 8–10+ mm. Disc florets 35–50+; corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm. Cypselae 2.5–3.5+ mm, glabrous; pappi 4.5–7 mm. 2n = 46, 92.
- licença
- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
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Inglês
)
fornecido por eFloras
Senecio canus Hooker, Fl. Bor.-Amer. 1: 333, plate 116. 1834; S. canus var. eradiatus D. C. Eaton; S. canus var. purshianus (Nuttall) A. Nelson; S. convallium Greenman; S. hallii Britton; S. hallii var. discoidea W. A. Weber; S. harbourii Rydberg; S. howellii Greene; S. laramiensis A. Nelson; S. oreopolus Greenman; S. purshianus Nuttall
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- cc-by-nc-sa-3.0
- direitos autorais
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Packera cana
(
Inglês
)
fornecido por wikipedia EN
Packera cana is a species of flowering plant in the aster family known by the common name woolly groundsel. It is native to western and central North America, where it can be found in a wide array of habitat types at all elevations from grassland to the alpine climates of mountain peaks.
It is a perennial herb producing one erect stem from a rosette of basal leaves and a rhizome system. It generally grows up to 40 centimeters in maximum height. It is a woolly plant, its herbage coated in whitish hairs. The basal leaves have lance-shaped to oval blades which may have smooth or toothed edges. They are a few centimeters long and are borne on petioles. Leaves higher on the stem are smaller and simpler.
The inflorescence contains several flower heads, each lined with woolly green phyllaries. The head contains many golden yellow disc florets and generally either 8 or 13 narrow yellow ray florets each up to a centimeter long. The fruit is an achene around a centimeter long, including its pappus of bristles.
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- cc-by-sa-3.0
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- Wikipedia authors and editors
Packera cana: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Packera cana is a species of flowering plant in the aster family known by the common name woolly groundsel. It is native to western and central North America, where it can be found in a wide array of habitat types at all elevations from grassland to the alpine climates of mountain peaks.
It is a perennial herb producing one erect stem from a rosette of basal leaves and a rhizome system. It generally grows up to 40 centimeters in maximum height. It is a woolly plant, its herbage coated in whitish hairs. The basal leaves have lance-shaped to oval blades which may have smooth or toothed edges. They are a few centimeters long and are borne on petioles. Leaves higher on the stem are smaller and simpler.
The inflorescence contains several flower heads, each lined with woolly green phyllaries. The head contains many golden yellow disc florets and generally either 8 or 13 narrow yellow ray florets each up to a centimeter long. The fruit is an achene around a centimeter long, including its pappus of bristles.
- licença
- cc-by-sa-3.0
- direitos autorais
- Wikipedia authors and editors
