Commelina communis L.

Common dayflower (en), Misère asiatique (fr), Comméline commune (fr)

Species

Angiosperms > Commelinales > Commelinaceae > Commelina

Characteristics

Herbs, annual, erect to decumbent. Roots at proximal nodes. Stems diffusely branched. Leaves: blade narrowly lanceolate to ovate-elliptic, 5--12 ´ 1--4 cm, apex acute to acuminate. Inflorescences: distal cyme usually vestigial, included, sometimes 1-flowered, exserted; spathes solitary, green, paler or whitish basally with contrasting, dark green veins, pedunculate, usually not falcate, 1.5--3(--3.5) ´ 0.8--1.3(--1.8) cm, margins distinct, scabrous, not ciliate, apex acute to acuminate, glabrous to puberulent; peduncles 0.8--3.5(--5) cm. Flowers bisexual (rarely staminate); proximal petal paler or white, very reduced, distal petals blue to bluish purple; staminodes 3; antherodes yellow sometimes with central maroon spot, cruciform. Capsules 2-locular, 2-valved, 4.5--8 mm. Seeds 4, brown, (2--)2.5--4.2 ´ 2.2--3 mm, rugose pitted-reticulate.
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Herbs annual. Stems creeping, diffuse, numerous branched, to more than 1 m, glabrous proximally, puberulent distally. Leaf sheaths glabrous; leaf blade lanceolate to ovate-lanceolate, 3--9 × 1.5--2 cm, glabrous. Involucral bracts borne opposite leaves, with 1.5--4 cm long stalk, cordate, folded, 1.2--2.5 cm, often hirsute-ciliate, apex acute. Proximal branch of cincinni with peduncle ca. 8 mm and 1 or 2 male flowers, distal branch with short peduncle and 3 or 4 bisexual flowers, nearly included in involucral bracts; pedicels ca. 3 mm at anthesis, curved and less than 6 mm in fruit. Sepals ca. 5 mm, membranous. Petals dark blue, 9--10 mm except proximal one ca. 5 mm. Capsule ellipsoid, 5--7 mm, 2-valved. Seeds 2 per valve, brown-yellow, semiellipsoid, 2--3 mm, flat on 1 surface, irregularly pitted, truncate at 1 end.
Fibrous-rooted annual; stems at first erect, later diffuse and rooting from the lower nodes, to 8 dm; lf-blades lance-ovate, the larger 5–12 × 1.5–4 cm; sheaths 1–2 cm; spathe (folded) broadly semicordate, 1.5–3 cm, half as wide, acute or short-acuminate, glabrous or minutely hairy, basally with dark green veins on a paler background, its margins free, its stalk 1–7 cm; blade of upper pet 8–15 mm; lower median pet white or nearly so; anthers 6 (3 sterile); ovary 3-locular; fr 2-locular and 4-seeded, the upper locule of the ovary abortive; 2n=36–90. Moist or shaded ground, often a garden-weed; native of e. Asia, intr. from N.H. to Ga., w. to N.D. and Tex. Several forms, often locally constant, differing in details of pubescence, size and intensity of color of pet, and color of sterile stamens.
An annual herb with creeping stems. It grows 20-60 cm high. It can produce many branches that root at the nodes. The leaves are sword shaped and 4-9 cm long by 2 cm wide. It forms a sheath around the stem at the base. The flowers are bright blue. The 3 petals are not equal in size. There are 2 large ones and one small one. The upper 2 are blue and the lower one is white.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination entomogamy
Spread barochory
Mature width (meter) -
Mature height (meter) 0.63 - 0.73
Root system fibrous-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Partly shaded grassy places, cultivated fields and roadsides usually in moist places all over Japan. Many different habitats, often in humid localities, along ditches and roadsides.
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Partly shaded grassy places, cultivated fields and roadsides usually in moist places all over Japan.
A tropical plant. It grows in humid places. It grows in wet soil. It grows in wetlands.
Light 4-9
Soil humidity 1-5
Soil texture 3-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 6-8

Usage

The leaves and tender shoots and flowers are eaten as a green vegetable. They are cooked. They are served with butter and salt and miso or rice. They can be chopped finely and added to salads. The seeds are eaten when food is scarce.
Uses dye environmental use fodder medicinal
Edible flowers leaves seeds shoots stems
Therapeutic use Abscess (leaf), Anti-inflammatory agents (leaf), Antipyretics (leaf), Diabetes mellitus (leaf), Diarrhea (leaf), Diuretics (leaf), Furunculosis (leaf), Hypoglycemic agents (leaf), Jaundice (leaf), Cooling effect on body (leaf), Abscess (shoot), Anti-inflammatory agents (shoot), Antipyretics (shoot), Diabetes mellitus (shoot), Diarrhea (shoot), Diuretics (shoot), Furunculosis (shoot), Hypoglycemic agents (shoot), Jaundice (shoot), Cooling effect on body (shoot), Abscess (unspecified), Alexiteric (unspecified), Ascites (unspecified), Bactericide (unspecified), Bite(Bug) (unspecified), Bite(Snake) (unspecified), Boil (unspecified), Conjunctivitis (unspecified), Depurative (unspecified), Diarrhea (unspecified), Dysuria (unspecified), Fever (unspecified), Heart (unspecified), Laryngitis (unspecified), Malaria (unspecified), Mumps (unspecified), Swelling (unspecified), Throat (unspecified), Cold (unspecified), Diuretic (unspecified), Gonorrhea (unspecified), Hemorrhage (unspecified), Pharyngitis (unspecified), Tonsillitis (unspecified), Eye diseases (whole plant)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) 30 - 37
Germination temperacture (C°) 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Commelina communis habit picture by tomhuck88 (cc-by-sa)
Commelina communis habit picture by Matthias Foellmer (cc-by-sa)
Commelina communis habit picture by Iva (cc-by-sa)

Leaf

Commelina communis leaf picture by Cerutti Victor (cc-by-sa)
Commelina communis leaf picture by Kaitlyn (cc-by-sa)
Commelina communis leaf picture by theresa shafer (cc-by-sa)

Flower

Commelina communis flower picture by Ross Kat (cc-by-sa)
Commelina communis flower picture by Ethan Winter (cc-by-sa)
Commelina communis flower picture by Andrew Nitschke (cc-by-sa)

Fruit

Commelina communis fruit picture by Llandrich anna (cc-by-sa)
Commelina communis fruit picture by Llandrich anna (cc-by-sa)

Distribution

Commelina communis world distribution map, present in Åland Islands, Albania, Austria, Bulgaria, Canada, Chile, China, Czech Republic, Spain, France, Micronesia (Federated States of), Georgia, Italy, Japan, Lao People's Democratic Republic, Myanmar, Malaysia, Nicaragua, Korea (Democratic People's Republic of), Portugal, Thailand, Taiwan, Province of China, Ukraine, United States of America, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:319150-2
WFO ID wfo-0000358362
COL ID XFFY
BDTFX ID 18645
INPN ID 92222
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Commelina communis Commelina communis f. albiflora Commelina communis f. aureostriata Commelina communis f. caeruleopurpurascens Commelina communis var. ciliata Commelina communis var. angustifolia

Lower taxons

Commelina communis var. ludens