CALYSTEGIA SILVATICA
Common Name:- Great bindweed
Homotypic Synonyms:- Calystegia sepium subsp. silvatica, Convolvulus
sepium subsp. silvaticus, Convolvulus silvaticus, Volvulus silvaticus.
Meaning:- Calystegia (Gr) Calyx-cover.
Silvatica (L) Of woodlands, of the woods.
General description:- Variable vigorous climbing and twining perennial, hairy or
hairless
Stems:-
1) To 3m. strongly climbing.
Leaves:-
1) More or less sagittate, sinus rounded, with divergent or sometimes parallel
sides.
Flowers:-
1) Peduncle, without a narrow, repand wing.
2) Bracteoles 14-32(-38) mm wide when flattened, overlapping, closely investing
the calyx and almost completely concealing it, weakly to strongly saccate at
the base, subacute to broadly rounded or emarginate at the apex.
3) Corolla, usually 50-90 mm, white; occasionally the outside of the centre-band
only of each lobe suffused with pink.
4) Stamens, 24-37(-40) mm.
5) Anthers, 6-8 mm.
Fruit:-
1) A capsule.
Key features:-
1) Corolla, white, usually 50-90 mm.
2) Bracteoles, almost completely concealing the calyx, overlapping, saccate at the
base, subacute to rounded at the apex.
Habitat:- Woodland margins, shady embankments of forest roads, gorges,
thickets by streams and in coastal areas 0-1400 m.
Distribution:- Scattered throughout Greece, S. Europe and SW. Asia. through
Anatolia. Rare on Crete known only from 3 locations.
.
Flowering time:- May-June.
Photos by:- Marinos Gogolos