Comments
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Persicaria longiseta is morphologically similar to another Asian species, P. posumbu (Buchanan-Hamilton ex D. Don) H. Gross (= P. caespitosa). Its spread in the United States since its introduction near Philadelphia in 1910 was summarized by A. K. Paterson (2000).
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Description
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Plants annual, 3-8 dm; roots also often arising from proximal nodes; rhizomes and stolons absent. Stems decumbent to ascending, branched, without noticeable ribs, glabrous. Leaves: ocrea hyaline to brownish, cylindric, 5-12 mm, chartaceous, base sometimes inflated, margins truncate, ciliate with bristles 4-12 mm, surface glabrous or strigose, not glandular-punctate; petiole 0.1-0.3(-0.6) cm, glabrous, leaves sometimes sessile; blade without dark triangular or lunate blotch adaxially, ovate-lanceolate to linear-lanceolate, 2-8 × 1-3 cm, base tapering to cuneate, margins antrorsely strigose, apex acute to acuminate, faces glabrous or sparingly strigose along veins abaxially, glabrous or strigose along midvein and margins adaxially, not glandular-punctate. Inflorescences terminal, sometimes also axillary, erect, uninterrupted, 10-40(-80) × 3-7 mm; peduncle 10-50 mm, glabrous; ocreolae overlapping, margins ciliate with bristles (0.5-)1-4(-6) mm. Pedicels ascending, 1-2 mm. Flowers 1-5 per ocreate fascicle, homostylous; perianth pinkish green proximally, roseate distally, glabrous, not glandular-punctate, scarcely accrescent; tepals 5, connate ca. 1/ 3 their length, obovate, 2.2-2.8 mm, veins not prominent, not anchor-shaped, margins entire, apex obtuse to rounded; stamens 5, included; anthers yellow, elliptic to ovate; styles 3, connate proximally. Achenes included, dark brown to black, 3-gonous, 1.6-2.3 × 1.1-1.6 mm, shiny, smooth.
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Description
provided by eFloras
Ascending-erect, 15-60 cm high, glabrous, branched from base or above, annual herb. Stem brownish or reddish brown, glabrous, canaliculate. Leaves 2.5-12 x 0.75-3.5 cm, lanceolate-elliptic, acuminate, hairy, entire, with a rounded or cordate base, petiole 2-7 mm long. Ochrea 8-20 mm long, ovate, tubular, setose or ciliate, cilia almost equalling the ochreae or longer. Inflorescence very laxly flowered, interrupted 0.8-4.0 cm long, terminal-axillary raceme. Flowers up to 2.0 mm across, pedicel 1.0 mm long. Ochreolae 1.0-3.0 mm long, setose or ciliate, cilia 1.0-4.0 mm long. Tepals 5, biseriate, unequal, red, pink or whitish, ovate-obovate, obtuse. Stamens 5-8, filaments long. Ovary trigonous, rounded, with 3 styles, styles free above, fused below. Nuts trigonous, shining, black.
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Distribution
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Distribution: Kashmir to Nepal, extending upto Japan through N. Myanmar and China.
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Distribution
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Himalaya (Kashmir to Nepal), N. Burma, China, Japan, Malaysia.
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Distribution
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introduced; B.C., N.B., Ont.; Ala., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.J., N.Y., N.C., Ohio, Pa., S.C., Tenn., Tex., Vt., Va., W.Va., Wis.; e Asia; introduced also in Europe.
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Elevation Range
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2100-2400 m
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Flower/Fruit
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Fl. Per.: May-August.
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Flowering/Fruiting
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Flowering May-Oct.
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Habitat
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A fairly common species from plains to 2500 m, grows in ditches, moist places. Often confused with Persicaria salicifolia (Brous. ex Willd.). See discussion under excluded species.
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Habitat
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Floodplain forests and woodlands, shorelines of ponds, moist roadsides, waste places; 0-300m.
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Synonym
provided by eFloras
Polygonum longisetum De Bruyn in Miq., Pl. Jungh. 307. 1854; Polygonum serrulatum auct. non Lag. 1817 sensu Hook.f., Fl. Brit. Ind. 1: 38. 1886; R. R. Stewart, Ann. Cat. Vasc. Pl. W. Pak. & Kashm. 212. 1972; Polygonum caespitosum Bl. var. longisetum (De Bruyn) Danser, Polyg. Nied. 170. 1927; Persicaria caespitosa var. longiseta (De Bruyn) C. F. Reed in Phytologia 63 (5): 410. 1987.
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Synonym
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Polygonum longisetum Bruijn in F. A. W. Miquel, Pl. Jungh. 3: 307. 1854; Persicaria caespitosa (Blume) Nakai var. longiseta (Bruijn) C. F. Reed; Polygonum caespitosum Blume var. longisetum (Bruijn) Steward
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Persicaria longiseta
provided by wikipedia EN
Persicaria longiseta is a species of flowering plant in the knotweed family known by the common names Oriental lady's thumb, bristly lady's thumb, Asiatic smartweed, long-bristled smartweed, low smartweed, Asiatic waterpepper, bristled knotweed, bunchy knotweed, and tufted knotweed. It is native to Asia (China, India, Russia, Japan, Malaysia, etc.),[2] and it is present in North America and Europe as an introduced species and often a weed.[3][4]
Persicaria longiseta is an annual herb with stems 30 to 80 centimeters (12–32 inches) long,[5] sometimes reaching one meter (40 inches).[3] The hairless, branching stems may root at lower nodes that come in contact with the substrate. The leaves are lance-shaped and up to 8 centimeters (3.2 inches) long by 3 cm (1.2 inches) wide. They have bristly ochrea. The inflorescence is an elongate cluster up to 8 centimeters (3.2 inches) long and contains many pink flowers. The fruit is a small, smooth achene.[5]
In its native region this plant is a common weed of rice paddies. It was introduced to North America near Philadelphia around 1910 and probably spread via the railroads. It is present in much of the eastern United States and much of Canada.[6] It grows in moist habitat types such as wetlands, as well as dry and upland habitat. It can be found in meadows, marshes, mudflats, riverbanks, floodplains, levees, and lowland and upland forests. It is invasive in some areas.[3]
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Persicaria longiseta: Brief Summary
provided by wikipedia EN
Persicaria longiseta is a species of flowering plant in the knotweed family known by the common names Oriental lady's thumb, bristly lady's thumb, Asiatic smartweed, long-bristled smartweed, low smartweed, Asiatic waterpepper, bristled knotweed, bunchy knotweed, and tufted knotweed. It is native to Asia (China, India, Russia, Japan, Malaysia, etc.), and it is present in North America and Europe as an introduced species and often a weed.
Persicaria longiseta is an annual herb with stems 30 to 80 centimeters (12–32 inches) long, sometimes reaching one meter (40 inches). The hairless, branching stems may root at lower nodes that come in contact with the substrate. The leaves are lance-shaped and up to 8 centimeters (3.2 inches) long by 3 cm (1.2 inches) wide. They have bristly ochrea. The inflorescence is an elongate cluster up to 8 centimeters (3.2 inches) long and contains many pink flowers. The fruit is a small, smooth achene.
In its native region this plant is a common weed of rice paddies. It was introduced to North America near Philadelphia around 1910 and probably spread via the railroads. It is present in much of the eastern United States and much of Canada. It grows in moist habitat types such as wetlands, as well as dry and upland habitat. It can be found in meadows, marshes, mudflats, riverbanks, floodplains, levees, and lowland and upland forests. It is invasive in some areas.
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Persicaria longiseta
(
Vietnamese
)
provided by wikipedia VI
Persicaria longiseta là một loài thực vật có hoa trong họ Rau răm. Loài này được (Bruijn) Kitag. miêu tả khoa học đầu tiên năm 1937.[1]
Chú thích
Liên kết ngoài
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Persicaria longiseta: Brief Summary
(
Vietnamese
)
provided by wikipedia VI
Persicaria longiseta là một loài thực vật có hoa trong họ Rau răm. Loài này được (Bruijn) Kitag. miêu tả khoa học đầu tiên năm 1937.
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长鬃蓼
(
Chinese
)
provided by wikipedia 中文维基百科
二名法 Polygonum longisetumBruijn 长鬃蓼(学名:Polygonum longisetum)为蓼科蓼属下的一个种。
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长鬃蓼: Brief Summary
(
Chinese
)
provided by wikipedia 中文维基百科
长鬃蓼(学名:Polygonum longisetum)为蓼科蓼属下的一个种。
イヌタデ
(
Japanese
)
provided by wikipedia 日本語
イヌタデ: Brief Summary
(
Japanese
)
provided by wikipedia 日本語
イヌタデ(犬蓼、学名: Persicaria longiseta)は、タデ科イヌタデ属の一年草。道端に普通に見られる雑草である。
和名はヤナギタデに対し、葉に辛味がなくて役に立たないという意味で「イヌタデ」と名付けられた。赤い小さな花や果実を赤飯に見立て、別名アカノマンマともよばれる。
개여뀌
(
Korean
)
provided by wikipedia 한국어 위키백과
개여뀌는 마디풀과 여뀌속의 한해살이풀이다.
생태
빈터나 밭에서 흔히 자란다. 키는 20~50 센티미터 정도이다. 줄기는 털이 없고 적자색이 돈다. 밑 부분이 비스듬히 자라면서 땅에 닿으면 뿌리를 내리고 가지가 뻗어 곧게 자라 줄기가 여럿 모여 난 것처럼 보인다. 잎은 어긋나고 가장자리가 밋밋하다. 넓은 피침형 또는 피침형인데 양끝이 뾰족하고 길이 3~8 센티미터, 너비 1~2.5 센티미터쯤 된다. 꽃은 6~9월에 피며 줄기나 가지 끝에 조그만 꽃이 이삭 모양의 꽃차례에 촘촘히 모여 달린다. 열매는 수과로 흑갈색이며 달걀 모양에 세모지며 꽃받침에 싸여 있다.
사진
참고 문헌
- 고경식; 김윤식 (1988). 《원색한국식물도감》. 아카데미서적.
- 송기엽; 윤주복 (2003). 《야생화 쉽게 찾기》. 진선출판사. ISBN 89-7221-343-8.
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