Draba spp.
Family: Brassicaceae
Draba image
Liz Makings  
Annuals, biennials, or perennials [subshrubs]; (caudex simple or branched); scapose or not; glabrous or pubescent, trichomes stalked or sessile, simple, forked, cruciform, stellate, malpighiaceous, or dendritic, often more than 1 kind present. Stems usually erect to ascending, sometimes decumbent or prostrate, unbranched or branched (usually distally). Leaves usually basal and cauline, sometimes cauline absent; petiolate or sessile; basal usually rosulate, usually petiolate, rarely sessile, blade margins usually entire or toothed, rarely pinnately lobed; cauline (when present), petiolate or sessile, blade (base cuneate [auriculate]), margins entire or dentate. Racemes (often corymbose, sometimes bracteate), elongated or not in fruit. Fruiting pedicels (proximalmost) erect or ascending to divaricate, slender. Flowers: sepals (rarely persistent), erect, ascending, or, rarely, spreading, ovate or oblong [elliptic], lateral pair not saccate or subsaccate basally; petals (erect or ascending to patent), yellow, white, pink, purple, or orange [red], obovate, spatulate, oblanceolate, or linear [orbicular, oblong], (longer than or, rarely, shorter than sepals), claw obscurely to well-differentiated from blade, (apex obtuse, rounded, notched, or, rarely, deeply 2-lobed); stamens slightly to strongly tetradynamous; filaments dilated or not basally, (glabrous); anthers ovate or oblong, (not apiculate); nectar glands (1, 2, or 4), distinct or confluent, subtending bases of stamens, median glands present or absent. Fruits silicles or siliques, sessile, ovate, lanceolate, elliptic, oblong, linear, suborbicular, ovoid, or subglobose, plane or spirally twisted, smooth, (not keeled, unappendaged), usually latiseptate, rarely terete; valves (papery), each with distinct or obscure midvein and lateral veins, glabrous or pubescent; replum rounded; septum complete; ovules 4-70(-88) per ovary; style obsolete or distinct; stigma capitate. Seeds biseriate, oblong, ovate, or orbicular, usually flattened (slightly flattened in D. aleutica, D. verna), usually not winged (winged in D. asterophora, D. brachycarpa, D. carnosula, D. pterosperma); seed coat (minutely reticulate), not mucilaginous when wetted; cotyledons accumbent. x = 6-12.
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Image of Draba allenii
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Image of Draba apiculata
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Draba
Image of Draba arctica
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Image of Draba arctogena
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Draba

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Image of Draba bellii
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Image of Draba caesia
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Image of Draba carnosula
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Image of Draba chamissonis
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Image of Draba crockeri
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Image of Draba cruciata
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Draba
Image of Draba eschscholtzii
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Image of Draba exalata
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Image of Draba glacialis
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Image of Draba grandis
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Image of Draba groenlandica
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Image of Draba hatchiae
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Draba
Image of Draba hirta
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Image of Draba incana
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Image of Draba inexpectata
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Draba
Image of Draba juvenilis
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Image of Draba kamtschatica
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Image of Draba laevicapsula
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Image of Draba laurentiana
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Draba

Image of Draba macounii
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Image of Draba macrocarpa
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Draba

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Image of Draba mccallae
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Image of Draba micropetala
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Draba
Image of Draba mulliganii
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Image of Draba murrayi
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Image of Draba nelsonii
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Image of Draba nitida
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Image of Draba norvegica
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Draba
Image of Draba ogilviensis
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Image of Draba oxycarpa
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Image of Draba oxyloba
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Image of Draba pallida
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Image of Draba patens
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Image of Draba pattersonii
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Image of Draba pauciflora
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Image of Draba pilosa
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Image of Draba pinetorum
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Draba

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Image of Draba pseudopilosa
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Draba

Image of Draba pycnosperma
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Image of Draba rigida
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Image of Draba serpentina
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Image of Draba sibirica
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Image of Draba simmonsii
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Image of Draba sphaerula
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Image of Draba stenopetala
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Image of Draba subamplexicaulis
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Image of Draba subcapitata
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Image of Draba subsessilis
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Image of Draba trichocarpa
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Image of Draba valida
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Draba
Image of Draba yellowstonensis
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Draba