Your search found 10 image(s) of ocreae of Jumpseed and Smartweed species.
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The base of the leaf stalk forms a short sheath (ocrea) around the stem, per Wildflowers of Tennessee.
Ocrea 10-20mm, margins truncate, surface strigose to tomentose, per Flora of North America.
Ocreae not ciliate, per Vascular Flora of the Carolinas.
Ocreae 1-3cm long, not ciliate, glabrous or minutely strigillose on the nerves, per Vascular Flora of the Carolinas.
Ocrea brownish, cylindric, chartaceous, base inflated, margins truncate, per Flora of North America.
The cilia on the ocreae are unmistakable: 1/4" to 3/8" long, per Wildflowers of the Southern Mountains.
Bristles of ocreae 0.2-1.3 (-2) mm long, per Weakley's Flora.
Similar to P. longiseta, but bristles on the leaf node collars only 2mm long, per Wildflowers of the Sandhills Region.
Ocrea brown, cylindric, chartaceous, base inflated, margins truncate, per Flora of North America.
Ocreae strigose & hirsute, at least some hairs loosely ascending to spreading, per Weakley's Flora.
"Introduced as an ornamental in the late 1800s, Japanese knotweed now forms monocultures along roadways, railroads, and streambeds in 36 states, including Alaska." — Douglas W. Tallamy, Bringing Nature Home
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