Brassicaceae Burnett (Q3448)

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Brassicaceae is a taxon with the rank family within the order Brassicales
Language Label Description Also known as
English
Brassicaceae Burnett
Brassicaceae is a taxon with the rank family within the order Brassicales

    Statements

    taxon/id/Brassicaceae Burnett
    0 references
    Brassicaceae Burnett
    Brassicaceae
    Burnett
    The Angiosperm Phylogeny Group. 2009. An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. Botanical Journal of the Linnaen Society 161: 105-121.
    accepted
    Brassicacées (French)
    mustard family (English)
    Crucifères (French)
    Mustard Family (English)
    Nearly worldwide
    especially temperate areas
    with the highest diversity in the Irano-Turanian region
    Mediterranean area
    and western North America
    taprooted or rhizomatous (rarely stoloniferous), caudex simple or branched, sometimes woody, rhizomes slender or thick.
    forked, stellate, dendritic, malpighiaceous (medifixed, 2-fid, appressed), or peltate and scalelike, eglandular.
    branched or unbranched.
    Leaves (sometimes persistent) cauline usually present, basal present or not (sometimes rhizomal present in Cardamine), rosulate or not, usually alternate (sometimes opposite or whorled in Cardamine angustata, C. concatenata, and C. diphylla and in Lunaria annua; sometimes subopposite in C. dissecta and C. maxima and in Draba ogilviensis), usually simple, rarely trifoliolate or pinnately, palmately, or bipinnately compound;
    petiolate, sessile, or subsessile (sessile auriculate or not, sometimes amplexicaul);
    blade margins entire, dentate, crenate, sinuate, repand, or dissected.
    Inflorescences terminal, usually racemose (racemes often corymbose or paniculate) or flowers solitary on pedicels from axils of rosette leaves;
    bracts usually absent, sometimes present.
    Pedicels present (persistent or caducous [rarely geotropic]).
    Flowers bisexual [unisexual], usually actinomorphic (zygomorphic in Iberis, sometimes in Pennellia, Streptanthus, and Teesdalia);
    perianth and androecium hypogynous;
    sepals usually caducous, rarely persistent, 4, in 2 decussate pairs (1 pair lateral, 1 median), distinct [connate], not saccate or lateral (inner) pair (or, rarely, both pairs) saccate, forming tubular, campanulate, or urceolate calyx;
    petals 4, alternate with sepals, usually cruciform, rarely in abaxial and adaxial pairs, rarely rudimentary or absent, claw differentiated or not from blade, blade sometimes reduced and much smaller than well-developed claw, basally unappendaged, or, rarely, appendaged, margins entire or emarginate to 2-fid, rarely pinnatifid [fimbriate or filiform];
    stamens (2 or 4) 6 [8–24], in 2 whorls, usually tetradynamous (lateral outer pair shorter than median inner 2 pairs), rarely equal in length or in 3 pairs of unequal length;
    filaments (slender, sometimes winged, appendaged, or toothed): median pairs usually distinct, rarely connate;
    anthers dithecal, dehiscing by longitudinal slits, pollen-grains 3 (–11) -colpate, trinucleate;
    nectar glands receptacular, variable in number, shape, size, and disposition around filament base, always present opposite bases of lateral filaments, median glands present or absent;
    pistil 1, 2-carpellate;
    ovary 2-locular with false septum connecting 2 placentae, rarely 1-locular and eseptate, placentation usually parietal, rarely apical;
    gynophore usually absent;
    style 1, persistent [caducous], sometimes obsolete or absent;
    stigma capitate or conical, entire or 2-lobed, lobes spreading or connivent, sometimes decurrent, distinct or connate, rarely elongated into horns or spines;
    ovules 1–300 per ovary, anatropous or campylotropous, bitegmic, usually crassinucellate, rarely tenuinucellate.
    Fruits usually capsular, usually 2-valved ((3 or) 4 (–6) in Rorippa barbareifolia, (2 or) 4 in Tropidocarpum capparideum), termed siliques if length 3+ times width, or silicles if length less than 3 times width, sometimes nutletlike, lomentaceous, samaroid, or schizocarpic and [with] without a carpophore carrying the 1-seeded mericarp, dehiscent or indehiscent, segmented or not, torulose or smooth, terete, angled, or flat, often latiseptate (flattened parallel to septum) or angustiseptate (flattened at right angle to septum);
    gynophore usually absent, sometimes distinct;
    valves each not or obscurely veined, or prominently 1–7-veined, usually dehiscing acropetally, rarely basipetally, sometimes spirally or circinately coiled, glabrous or pubescent [spiny or glochidiate];
    replum (persistent placenta) rounded, flattened, or indistinct (obsolete in Crambe, often perforate in Thysanocarpus);
    septum complete, perforated, reduced to a rim, or absent (obsolete in Crambe and Thysanocarpus, not differentiated from replum in Raphanus), sometimes with a midvein or anastomosing veins.
    Seeds usually yellow or brown, rarely black or white, flattened or plump, winged or not, or narrowly margined, ovoid, oblong, globose, or ovate, usually uniseriate or biseriate, sometimes aseriate, per locule, mucilaginous or not when wetted;
    embryo usually strongly curved, rarely straight with tiny radicle;
    cotyledons entire, emarginate, 3 [2] -fid to base, orientation to radicle: incumbent (embryo notorrhizal: radicle lying along back of 1 cotyledon), accumbent (embryo pleurorrhizal: radicle applied to margins of both cotyledons), conduplicate (embryo orthoplocal: cotyledons folded longitudinally around radicle), or spirally coiled (embryo spirolobal) [twice transversely folded (embryo diplecolobal)];
    endosperm absent (germination epigeal).