Pupalia lappacea (L.) Juss.
  • Ann. Mus. Natl. Hist. Nat.


Cite taxon page as 'WFO (2020): Pupalia lappacea (L.) Juss. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000394468. Accessed on: 24 Oct 2020'

Morphology

Burr fruits.

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    Yellow or red stamens

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    Greenish flowers

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    A weed, 2–4 ft. high, sometimes woody below

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    Tepals oblong-ovate to lanceolate-ovate, more or less quickly narrowed to a rather obtuse mucronate apex to gradually narrowed and acute-aristate, the outer two (3.5)4–5(6) mm. long, subglabrous to more or less tomentose dorsally, 3(5)-nerved, the midrib and 2 inner nerves confluent just below the apex and excurrent in the mucro or short arista, inner 3 slightly shorter and more densely pilose.

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    Inflorescences at first more or less dense, elongating to as much as 0.5 m. in fruit with the lower flowers becoming increasingly remote, axis subglabrous to tomentose, peduncle c. 1–10 cm. long; bracts lanceolate, 1.5–2.5 mm. long, persistent, more or less deflexed after the fall of the fruit, subglabrous or pilose, sharply mucronate with the percurrent midrib; partial inflorescences mostly of one solitary hermaphrodite flower subtended on each side by a triad of one hermaphrodite and 2 modified flowers; bracteoles of each triad broadly subcordate-ovate, (2.75)3–5(6) mm., abruptly narrowed to the stramineous to dark arista forming by the excurrent midrib, membranous with a pale margin, thinly to very densely hairy; bracteoles of sterile flowers ovate-lanceolate, usually more shortly and less densely pilose.

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    Style short to rather slender, (0.5)0.9–2(3) mm. long.

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    Branches of sterile flowers 3, each terminating in (3)5–18 (20) mm. long setae in 1–3 ranks; setae subglabrous to more or less villous in the lower half, yellowish to purple or red, (1.5)3–7 mm., the partial inflorescence falling intact to form a burr c. 8–18 cm. in diam.

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    Seed oblong-ovoid with a prominent radicle, 2 mm. long, dark brown, shining, testa at first faintly reticulate but finally smooth or punctulate.

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    Capsule ovoid, 2–2.5 mm. long.

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    Annual or perennial herb, more or less erect and c. 0.3–0.9 m. tall, or prostrate and sprawling, or subscandent and scrambling to as much as 2.5 m., stem generally much-branched and swollen at the nodes, branches opposite, divaricate or ascending, slender; stems and branches obtusely 4-angled to almost terete, thinly pilose to densely tomentose.

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    Leaves variable to shape and size, from narrowly ovate-elliptic to oblong or circular, 2 10 (14) × 1–5(7) cm., acuminate to obtuse-apiculate or retuse at the summit, shortly or more longly cuneate at the base, narrowed to a petiole 0.5–2.5(3.5) cm. long; indumentum of lamina varying from sericeous or tomentose to subglabrous with a few hairs running vertically along the lower surface of the primary venation, rarely quite glabrous, commonly moderately pilose with the hairs along the nerves divergent.

  • Provided by: [D].Plants Of the World Online Portal - FZ
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    Leaves variable in shape and size, from narrowly ovate-elliptic to oblong or circular, 2–10(–14) × 1–5(–7)cm., acuminate to obtuse-apiculate or retuse at the summit, shortly or more longly cuneate at the base, narrowed to a petiole 2–2.5(–3.5) cm. long; indumentum of lamina varying from sericeous or tomentose to subglabrous with a few hairs running vertically along the lower surface of the primary venation, rarely quite glabrous, commonly moderately pilose with the hairs along the nerves divergent.

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    Inflorescences at first ± dense, elongating to as much as 0.5 m. in fruit with the lower flowers becoming increasingly remote; axis subglabrous to tomentose; peduncle ± 1–10 cm.; bracts lanceolate, 1.5–2.5 mm., persistent, ± deflexed after the fall of the fruit, subglabrous or pilose, sharply mucronate with the percurrent midrib; partial inflorescences mostly of 1 solitary hermaphrodite flower subtended on each side by a triad of 1 hermaphrodite and 2 modified flowers; bracteoles of each triad broadly subcordate-ovate, (2.75–)3–5(–6) mm., abruptly narrowed to the stramineous to dark arista formed by the excurrent midrib, membranous with a pale margin, thinly to very densely hairy; bracteoles of sterile flowers ovate-lanceolate, usually more shortly and less densely pilose.

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    Tepals oblong-ovate to lanceolate-ovate, ± quickly narrowed to a rather obtuse-mucronate apex to gradually narrowed and acute-aristate, the outer 2 (3–)4–5(–6) mm., subglabrous to ± tomentose dorsally, 3(–5)-nerved, the midrib and 2 inner nerves confluent just below the apex and excurrent in the mucro or short arista, inner 3 slightly shorter and more densely pilose.

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    Branches of sterile flowers 3, each terminating in (3–)5–18(–20+) setae in 1–3 ranks; setae subglabrous to ± villous in the lower half, yellowish to purple or red, (1.5–)3–7 mm., the partial inflorescence falling intact to form a burr ± 8–18 mm. in diameter.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
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    • 17
    • ]. 

    Annual or perennial herb, ± erect and ± 0.3–0 .9 m. tall, or prostrate and sprawling, or subscandent and scrambling to as much as 2.5 m.; stem generally much branched and swollen at the nodes, branches opposite, divaricate or ascending, slender, obtusely 4-angled to almost terete, thinly pilose to densely tomentose.

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    Style short to rather slender, (0.5–)0.9–2(–3) mm.

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    Capsule ovoid, 2–2.5 mm.

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    • 17
    • ]. 

    Seed oblong-ovoid with a prominent radicle, 2 mm. long, dark brown, shining; testa at first faintly reticulate but finally smooth or punctulate.

  • Provided by: [B].Plants Of the World Online Portal - FTEA
    • Source: [
    • 17
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     Information From

    Amaranthaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Plants Of the World Online Portal - FTEA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • B
    Plants Of the World Online Portal - FWTA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • C The Trustees of the Royal Botanic Gardens, Kew
    Plants Of the World Online Portal - FZ
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • D
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).