Brassica napus L. var. napobrassica (L.) Peterm. - Rutabaga
Family - Brassicaceae
Stems - To 1.5m tall, herbaceous,
branching, erect, reddish-purple below, greenish-red above, glabrous,
from large thickened taproot to +10cm in diameter.
Root (hypocotyle).
Leaves - Alternate, glabrous. Lowest leaves to +25cm long, lyrate-pinnatifid, with small prickles
above and below on leaf tissue. Middle and upper cauline leaves clasping,
glabrous, glaucous, lanceolate. Margins crenate with prickles caused by
veins extending beyond leaf tissue.
Inflorescence - Terminal
raceme, compact in flower, elongating in fruit to +40cm long. Pedicels
of flowers 5-6mm long, elongating in fruit to 1.5cm long, -1mm in diameter.
Flowers - Petals 4, 4-5mm
broad at apex, obtuse, yellow, glabrous, to 1cm long, clawed. Stamens 6,
erect. Longer 4 stamens with filaments to 4.5mm long, white, glabrous.
Shorter stamens with filaments to 2mm long. Anthers yellow, +2mm long.
Ovary 4.5mm long, slightly flattened, glabrous. Style 2mm long, persistent
in fruit as beak. Sepals 4, yellow, glabrous, 1.5mm broad, 6mm long, linear,
spreading to erect.
Calyx.
Flower close-up.
Flowering - April - September.
Habitat - Cultivated and escaped to waste places, roadsides, railroads.
Origin - Native to Eurasia.
Other info. - This is the
commonly cultivated rutabaga enjoyed by many. The plant is actually quite
nice to look at. Turnips, B. campestris L., resemble
rutabagas but the roots are flat across the top.
Photographs taken off Hwy 29, Pike County, AL., 2-26-05.
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