Phaseolus semierectus
大翼豆
Phaseolus semierectus
About this plate
Phaseolus semierectus is plate 489, from Icones Plantarum Rariorum, drawn by Nikolaus Joseph Freiherr von Jacquin. This public-domain plate is reproduced at high resolution, free to view and download. Publication: Vindobonae, C.F. Wappler, 1781-1793.
Twelve ways of seeing
- measured cast yellow-green
- upright 1.76 : 1
- published 1781
- Plate 489
Not a catalogue entry but a way of looking: how to stand, what to notice, how the line was cut, when it flowers, where it came from, who made it — and then the poems and the classics that taught China to see the same flower. Read the twelve in order and the plate opens.
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First Look
论画以形似,见与儿童邻。
—— 宋·苏轼《书鄢陵王主簿所画折枝》
To judge painting by likeness alone is the view of a child.
The sheet is vertical: the eye climbs and settles in the upper half. Let the plant stand before you look for detail. Then step in close: watch where colour meets line, and whether the line ever breaks. Third, find where the yellow is deepest: the whole tonal order is measured from that patch. The pose leans left: the upper half carries 17 points further left than the lower — a living thing, not a diagram.
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Name and Thing
The binomial is Phaseolus semierectus: the first word is the genus it belongs among, the second the epithet that sets it apart. Two words carry a whole provenance. The Chinese name 大翼豆 is a modern rendering of the Latin, not an old garden name.
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Form and Colour
Measured on this plate: flower colour covers 22.6% of the sheet, foliage 0.0%, the cast yellow-green with a second note of amber. No other plate shares exactly this measure. A botanical plate: one plant lifted from field or glasshouse and set at the centre of the sheet, root, stem, leaf, flower and fruit in turn, made legible, citable, transmissible. Filed under yellow — a honey-yellow, built in washes from a pale ground. Three things fix the habit: leaf arrangement, tepal count, and how the flower is borne.
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Composition
Tall and narrow, the plant rising in one movement with generous margins — the upright format of most floras. (about 1.76 : 1) No details are appended: a plate for looking, not for keying out. The plant covers only 27% of the sheet, centred near the centre; the emptiness is where the eye rests. Blank paper is not unfinished work: it is where the eye rests.
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Line and Colour
Eighteenth-century plates are mostly copper engraving: hatched lines for shadow, then hand-colouring by another hand. Take a loupe to three places: petal edge, leaf vein, caption. An unbroken line means engraving; colour crossing the outline means a hand.
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Season
Plates usually record flowering, the fortnight when a plant is most identifiable; the rest of the year it is only a mass of leaves. The year 1781 on the plate is that of publication, not of flowering — the gathering came a year or two earlier. The best time to read such a plate is its flowering season: three minutes under the tree explains what no text can.
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Provenance
Various: local hillside or a plant brought from overseas. The nineteenth-century botanic garden and glasshouse were their first address away from home. The localities on the plate are those of a century ago; plants travel and places change their names.
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The Book and the Hand
“Icones Plantarum Rariorum” was drawn by Nikolaus Joseph Freiherr von Jacquin and published 1781-1793. This plate is Plate 489. The image is public domain; the hand-colouring is still one person's hand.
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Poetic Resonance
天地有大美而不言,四时有明法而不议。
—— 《庄子·知北游》
Heaven and earth have great beauty and do not speak.
The poem gives the mood first and the picture supplies the form; set the line beside the plate and the yellow the corolla becomes its resting point.
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The Written Tradition
论画以形似,见与儿童邻。
—— 宋·苏轼《书鄢陵王主簿所画折枝》
To judge a painting by likeness alone is the view of a child.
China had the Bencao Gangmu and the Illustrated Study of Plant Names and Realities; Europe moved from herbal woodcuts to chromolithography. Both trusted pictures to finish what words could not. Keep the line; it will surface the next time you meet the same plant.
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Symbolism
The symbolism of such a plate lies not in flower lore but in record: the belief that a plant deserves to be drawn accurately — the plainest ethic of the scientific age. This plate leans yellow, which in flower language adds one more degree of feeling. Meanings change their tune: the same flower can say opposite things within a century.
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What to Take Away
Next time you stand before a flowering plant, give it three minutes: leaf arrangement, direction of the flower, the darkest patch. The flower of that year is dust, yet its image on paper has outlived every living cousin.