DESCURAINIA SOPHIA
Common Names:- Flixweed
Homotypic Synonyms:- Arabis sophia, Crucifera sophia, Discurea sophia,
Phryne sophia, Sisymbrium sophia, Sophia sophia, Sophia vulgaris.
Meaning:- Descurainia (L) For Francois Descourain (1658-1740), French
physician.
Sophia (Gr) Knowledge, craft, wisdom (the use of flixweed in treating
dysentry or flux, Sophia of the craft of surgeons).
General description:- Erect annual or biennial.
Stem:-
1) 25-80bcm tall, usually with a greyish indumentum of simple and stellate hairs
below, green and glabrescent above.
Leaves:-
1) 2- or 3- pinnatisect into narrow segments.
Flowers:-
1) Raceme, ebracteate, many-flowered.
2) Petals, 1.5-3 mm, ± equalling the sepals, pale yellow.
3) Fruiting pedicels, 10-15 mm, slender, patent to ascending.
Fruit:-
1) Silicula, erecto-patent, linear, 10-30 x 0.6-1 mm. Valves reticulately veined.
2) Seeds, 20-35, in 1 row.
Habitat:- Sandy flats, gravelly roadsides, field margins and wasteground. 0-600 m.
Distribution:- Fairly common in N & NE Greece, rare and scattered south of 39oN.
- Widespread Euro-Siberian species introduced elsewhere. The Cretan record is
probably a casual introduction.
Flowering time:- Apr-June.
Photos by:- Courtesy of Wiki-Commons