Rorippa alpina (S. Watson) Rydberg (Q3615)

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Rorippa alpina is a taxon with the rank species within the genus Rorippa
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English
Rorippa alpina (S. Watson) Rydberg
Rorippa alpina is a taxon with the rank species within the genus Rorippa

    Statements

    taxon/id/Rorippa alpina (S. Watson) Rydberg
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    Rorippa alpina (S. Watson) Rydberg
    Rorippa alpina
    (S. Watson) Rydberg
    FNA Editorial Committee. 2010. Flora of North America north of Mexico. Volume 7: Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York.
    accepted
    rorippe alpine (French)
    alpine yellowcress (English)
    Flowering Jun–Sep.
    lakeshores
    pond margins
    streamsides
    snow ponds
    meadows
    seep areas
    Stems usually decumbent to prostrate, rarely erect, much-branched basally and distally, (0.3–) 0.4–1.9 (–2.6) dm (rarely pilose basally).
    [petiole (0.3–) 0.9–2 (–2.5) cm];
    blade [(0.6–) 1–3.2 (–4) cm × (2–) 3–8 (–15) mm], margins usually dentate to pinnatifid, rarely repand.
    Cauline leaves petiolate or subsessile;
    blade obovate to oblanceolate, smaller distally, base cuneate, attenuate, not auriculate, margins entire, crenate, or repand.
    Fruiting pedicels ascending to horizontal or slightly reflexed, straight or curved, (2–) 3–6 (–8) mm.
    Flowers: sepals ascending, oblong, 1–1.7 (–2) × 0.6–0.8 mm;
    petals yellow, spatulate, (1.3–) 1.5–2 × 0.5–0.8 mm;
    median filaments 0.8–1.2 mm;
    anthers ovate, 0.3–0.4 mm.
    Fruits often siliques, sometimes silicles, straight or slightly curved, oblong to lanceolate or ovoid, 3–7 (–8) × 1.4–2.1 (–2.7) mm;
    ovules 26–42 per ovary;
    style (0.3–) 0.5–1 (–1.2) mm.