Your search found 10 image(s) of ocreae of Jumpseed and Smartweed species.
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Jumpseed,
Persicaria virginiana
The base of the leaf stalk forms a short sheath (ocrea) around the stem, per Wildflowers of Tennessee.
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Jumpseed,
Persicaria virginiana
Ocrea 10-20mm, margins truncate, surface strigose to tomentose, per Flora of North America.
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Pennsylvania Smartweed,
Persicaria pensylvanica
Ocreae not ciliate, per Vascular Flora of the Carolinas.
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Dockleaf Smartweed,
Persicaria lapathifolia
Ocreae 1-3cm long, not ciliate, glabrous or minutely strigillose on the nerves, per Vascular Flora of the Carolinas.
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Dockleaf Smartweed,
Persicaria lapathifolia
Ocrea brownish, cylindric, chartaceous, base inflated, margins truncate, per Flora of North America.
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Longbristle Smartweed,
Persicaria longiseta
The cilia on the ocreae are unmistakable: 1/4" to 3/8" long, per Wildflowers of the Southern Mountains.
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Spotted Lady's-thumb,
Persicaria maculosa
Bristles of ocreae 0.2-1.3 (-2) mm long, per Weakley's Flora (2020).
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Spotted Lady's-thumb,
Persicaria maculosa
Similar to P. longiseta, but bristles on the leaf node collars only 2mm long, per Wildflowers of the Sandhills Region.
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Dotted Smartweed,
Persicaria punctata
Ocrea brown, cylindric, chartaceous, base inflated, margins truncate, per Flora of North America.
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Swamp Smartweed,
Persicaria setacea
Ocreae densely strigose, 1-1.5cm long, cilia 6-10mm long, per Vascular Flora of the Carolinas.