Alyssum murale Waldstein & Kitaibel (Q4550)

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Alyssum murale is a synonym of Odontarrhena muralis (Waldstein & Kitaibel) Endlicher
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Alyssum murale Waldstein & Kitaibel
Alyssum murale is a synonym of Odontarrhena muralis (Waldstein & Kitaibel) Endlicher

    Statements

    taxon/id/Alyssum murale Waldstein & Kitaibel
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    taxon synonym
    Flowering May–Jul.
    waste areas
    roadsides
    canescent or not, trichomes stellate, 5–20-rayed.
    Stems often several from caudex (sterile shoots absent or few), usually erect or ascending, (2.5–) 3–6 (–7) dm.
    Cauline leaves subsessile;
    blade narrowly oblanceolate to linear, (0.5–) 0.7–2.5 (–3) cm × 1–5 (–8) mm (gradually smaller distally), base cuneate to attenuate, apex obtuse to subacute, (surfaces often more grayish abaxially than adaxially).
    (Racemes corymbose, in panicles terminating each stem.) Fruiting pedicels divaricate-ascending, straight or slightly curved distally, slender, (2–) 2.5–6 (–8) mm, trichomes uniformly stellate.
    Flowers: sepals oblong, 1.2–2 × 0.4–0.7 mm, stellate-pubescent;
    petals yellow, spatulate, 2.5–3.5 × 0.5–1 mm, base attenuate, apex often obtuse or rounded, glabrous abaxially;
    filaments: median pairs broadly winged, apically 1-toothed, lateral pair with lanceolate or narrowly oblong basal appendage, apically subacute, 1.5–2.5 mm;
    anthers oblong, 0.2–0.3 mm.
    Fruits broadly elliptic to orbicular, 3.5–5 × 2.5–5 mm, apex obtuse to rounded;
    valves not inflated, flattened and slightly undulate, stellate-pubescent;
    ovules 1 per ovary;
    style (slender) 1–2 mm, sparsely pubescent.
    Seeds suborbicular to broadly ovoid, compressed, 3–3.8 × 2–3.2 mm, margins winged, wing 0.5–0.9 mm wide.