Genus Calystegia R. BR.
Род 632 (3). ЧАДЪРЧЕ — CALYSTEGIA R. BR.¹
R. Br., Prodr. Fl. Nov. Holl. I (1810) 483
Fam: Convolvulaceae Vent.
Genus: Calystegia R. BR.
English Name: Bindweed, False bindweed, or Morning gloryDescription: Perennial rhizomes herbaceous plants. Stems creeping or twisting, with white milky juice. Leaves consecutive, simple, at the base arrow-shaped or heart-shaped. Blossomss single, in the grooves of the leaves. Bracts 2, broadly ovate or heart-shaped, usually overlapping more or less the calyx. Corolla large, funnel-shaped or tubular, glabrous or fibrous. Stamens 5, with petioles expanded at the base. Ovary naked, single-nested, with 4 seedlings. The style single, shorter than corolla; stigma 2, elongated ovate. Box spherical or ovate, bursting into 2 lobes. Seeds brown to black, glabrous.
Economic importance. Twisting plants with large flowers suitable for decorative purposes.
Table for determination of the species
1 The stem creeping. Kidney leaves .................................................................................................................... 1. - C. soldanella (L.) R. Br.
1* The stem is twisted. Leaves arrow-shaped or heart-shaped ………….........................................................................……………………. 2
2 Bracts up to 15 (20) mm wide *, non-overlapping, basically flat or keeled. Stamens 15 - 23 (25 - 30) mm long ….. 2. - C. sepium (L.) R. Br.
2* The bracts 14 - 30 (-38) mm wide, overlapping, at the base bumpy swollen. Stamens (24-) 28-36 (-40) mm long ............................................................................................................................................................................. 3. - C. sylvatica (Kit.) Griseb.
¹Developed by Bogdan KuzmanovFrom: „Флора на Н Р България”, том VIII, БАН, София, (1982) * * *
Calystegia (bindweed, false bindweed, or morning glory) is a genus of about 25 species of flowering plants in the bindweed family Convolvulaceae. The genus has a cosmopolitan distribution in temperate and subtropical regions, but with half of the species endemic to California. They are annual or herbaceousperennial twining vines growing 1–5 m tall, with spirally arranged leaves. Theflowers are trumpet-shaped, 3–10 cm diameter, white or pink, with a sometimes inflated basal epicalyx.
The genus bears much similarity to a related genus Convolvulus, and is sometimes combined with it; it is distinguished primarily by the pollen being smooth, and in the ovary being unilocular.
Some of the species, notably Calystegia sepium and C. silvatica, are problematicweeds, which can swamp other more valuable plants by climbing over them, but some are also deliberately grown for their attractive flowers.
Calystegia species are used as food plants by the larvae of some Lepidopteraspecies including Bedellia somnulentella (recorded on C. sepium) and small angle shades.
The name is derived from two Greek words kalux, "cup", and stege, "a covering", meaning "a covering cup". [3]
From Wikipedia, the free encyclopedia
* * *
Distribution in Bulgaria: (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.
Distribution:References: „Флора на Н Р България”, том VIII, БАН, София, (1982), Wikipedia, the free encyclopedia
SPECIES:
Calystegia sepium (L.) R. Br. - Beauty, Bugle vine heavenly trumpets, Bellbind, Granny-pop-out-of-bed
Calystegia sylvatica (Kit.) Griseb. - Giant bindweed, Large bindweed
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