Murdannia keisak (Hassk.) Hand.-mazz.

Wartremoving herb (en)

Species

Angiosperms > Commelinales > Commelinaceae > Murdannia

Characteristics

Herbs perennial. Roots fibrous. Rhizomes horizontal, elongate. Stems creeping proximally, ascending distally, branched, to 40 cm; internodes ca. 8 cm, with a line of dense, white hairs. Leaves sessile; leaf sheath with a line of hairs on 1 side; leaf blade spreading or slightly folded, linear-lanceolate or linear-elliptic, 2--8 cm × 5--8 mm, ciliate only in proximal part, apex acuminate. Cincinni terminal and axillary, usually 1-flowered; peduncle 1--4 cm (terminal ones longer), with linear bract at middle, sometimes with a flower in axil of bract; pedicels 1--2 cm. Sepals narrowly oblong, 6--10 mm. Petals pink, purple-red, blue-purple, or pale blue, obovate. Fertile stamens 3; filaments densely bearded; staminodes 3; antherodes sagittate. Capsule narrowly ovoid, trigonous, 5--10 × 2--3 mm, acute to subacuminate at both ends. Seeds 4 (sometimes fewer) per valve, uniseriate, gray, slightly flattened. Fl. Aug--Sep.
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Herbs, annual, with long-trailing, decumbent shoots. Leaves: blade linear-oblong to linear-lanceolate, 1.5--7 ´ 0.2--1 cm, glabrous. Inflorescences terminal and in distal leaf axils; cymes 1-several, 1-flowered, solitary or fascicled. Flowers bisexual, radially symmetric, 1 cm wide; sepals 5--6 mm; petals purplish lilac or purple to pink or white, 5--8 mm; stamens 3; filaments bearded; staminodes 3. Capsules (4--)5--9 mm. Seeds 2--6 per locule, 1.6--3 mm, faintly ribbed.
Stems weak, decumbent or prostrate at base, 3–8 dm; lvs lance-linear, 3–6 cm; fls solitary, the pedicels arising from one to several of the upper sheaths, or some of them in 2–4-fld axillary racemes; sep 5–6 mm; pet pink, ca 8 mm. Fresh tidal marshes and margins of lakes and ponds; native to e. Asia, intr. from Md. to Fla., and inland to Ky., Tenn., and Ark. Late summer and fall. (Aneilema k.)
An annual herb. It forms roots at the nodes. It can keep growing from year to year. The leaves are sword shaped and 4-8 cm long by 5-10 mm wide. The flowers are blue-pink. They occur as 1-3 in groups in the axils of leaves. The fruit is a capsule 10 mm long.
Life form perennial
Growth form herb
Growth support aquatic free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
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Root system fibrous-root rhizome
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Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a temperate plant. It grows in damp places.
Light -
Soil humidity -
Soil texture 3-4
Soil acidity -
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Hardiness (USDA) 4-11

Usage

The young shoots are eaten as a potherb.
Uses fodder potherb
Edible shoots
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
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Images

Habit

Murdannia keisak habit picture by Melissa Melissa Keneely (cc-by-sa)

Distribution

Murdannia keisak world distribution map, present in Åland Islands, China, Georgia, Japan, Lao People's Democratic Republic, Nicaragua, Nepal, Korea (Democratic People's Republic of), Taiwan, Province of China, United States of America, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:172863-1
WFO ID wfo-0000473562
COL ID 44LMQ
BDTFX ID 84747
INPN ID 610659
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Murdannia keisak Aneilema coreanum Aneilema keisak Aneilema oliganthum Aneilema aquetii Phaeneilema oliganthum