Genus Convolvulus L.
Род 631 (2). ПОВЕТИЦА — CONVOLVULUS L.¹
L., Sp. Pl. ed. 1 (1753); Gen. Pl. ed. 5 (1754) 76; Sa'ad Mededel. Bot. Mus.
(Utrecht) 281 (1967) 41
Fam: Convolvulaceae Vent.
Genus: Convolvulus L.
English Name: Bindweed, Morning gloryDescription: Shrubs, semi-shrubs or perennial (rarely annual) herbaceous plants. Stems erect, ascending, creeping or twisting, without milk juice. Leaves sessile or on petioles, simple, consecutive, entire, rarely cut or dentate. The flowers are single, in cymose (dichasia or monohazies) or glabrous inflorescences, in the grooves of the leaves, along the stem and its top part. Bracts 2, subulate, filamentous, linear or lance, not enclosing the calyx. Sepals free, outer and inner two by two identical and slightly or very different from each other, the fifth usually with an intermediate shape and position, often asymmetrical. Corolla funnel-shaped, rarely bell-shaped, on the outside with 5 clear longitudinal fibrous or bare stripes, on the edge with 5 clear shares; the tube naked. Stamens 5, petioles broadened at base, longitudinal uneven, naked or glandular; the anthers are equal. Ovary fibrous or naked with a cup-similar or annular disc at the base, two-sided, in each well with 2 erect, anatropic seedlets. The style one, shorter than the crown; stigma 2, naked, filamentous, cylindrical or cylindrically lamellar shovel-shaped. Box ovoid, spherical or conical, bursting along the sockets or irregularly from the base, glabrous or fibrous, with 1 - 4 seeds. Seeds ovoid lenticular or irregular, fibrous or glabrous, warty, grainy or smooth on the surface.
Economic importance. A number of species are suitable for decorative purposes, some play the role of soil consolidators.
Table for determination of the species
1 Upper stem leaves incorrectly deeply palmately dented and serrated …………………….............................................. 6. - C. althaeoides L.
1* Top Stem Leaf entire ............................................ ….........................................................................………............................................... 2
2 Leaves on both sides densely white wavy ............................................................................................................................ 5. - C. persicus L.
2* Leaves on both sides naked, scattered to densely silky, adherent or spreading fibrous, not wavy ...................................................................... 3
3 Stem leaves at the base spear-shaped or arrow-shaped, with petioles ............................................................................................................. 4
3* The stem leaves at the base gradually elongated, widened with a membranous edge or cut off, sessile or with short petioles ............................... 5
4 The stripes of the corolla at the bottom naked, at the top with thin short hairs. Leaves naked or diluted, mostly along the veins short-fibrous ................................................................................................................................................................................................. 7. - C. arvensis L.
4* The stripes of the corolla completely densely fibrous. Leaves densely short to velvety fibrous ..................................... 8. - C. betonicifolius Mill.
5 Tightly tufted plants forming more or less compacted pillows. Stems truncate, 3 - 7 (-10) cm long ................................... 4. - C. boissieri Steud
5* Not-tufred plants, non-forming pillows. Stems elongated, branched, (3-) 10 - 15 (-50) cm long ................................ ........................................ 6
6 The lower part of the stem fit silky fibrous. External sepals fitting, silky fibrous ………...................................................................................…. 8
6* The lower part of the stem spread out fibrous. All sepals spreading fibrous ......................................................................................................... 7
7 Annual plant (rarely perennial), twisted. Corolla upper blue, mid white, base yellow (rarely corolla white or pink) ........................ * - C. tricolor L .
7* Perennial recumbent plant. The stem at the base stiffened. The Corolla pink ……………..........................………………… 1. - C. cantabrica L.
8 External sepals linear, linear lance or oblong at the base rounded or wedge-shaped. Corolla pink …………......................…… 2. - C. lineatus L.
8* Outer sepals broadly ovate to broadly ellipsoid at base, at the base heart-shaped. Corolla pale yellow to white ......…… 3. - C. holosericeus MV
Developed by Bogdan KuzmanovFrom: „Флора на Н Р България”, том VIII, БАН, София, (1982) * * *
Convolvulus /kənˈvɒlvjuːləs/[1] is a genus of about 200[2] to 250[3][4] species offlowering plants in the bindweed family Convolvulaceae,[5] with a cosmopolitan distribution. Common names include bindweed and morning glory; both names shared with other closely related genera.
They are annual or perennial herbaceous vines, bines and (a few species of) woody shrubs, growing to 0.3–3 m tall. The leaves are spirally arranged, and theflowers trumpet-shaped, mostly white or pink, but blue, violet, purple or yellow in some species.
Many of the species are invasive weeds; but others are cultivated for their attractive flowers, while some are globally threatened.
Convolvulus species are used as food plants by the larvae of some Lepidopteraspecies, including the convolvulus hawk moth, the sweet potato leaf miner(Bedellia somnulentella) and the gem; the leaf miner Bucculatrix cantabricellafeeds exclusively on C. cantabricus.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:
Convolvulus arvensis L. - Field bindweed
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