Sphenoclea zeylanica Gaertn.Family: Sphenocleaceae
English: Chicken-spike
Chinese: 尖瓣花
Spanish: Sfenoclea
Tamil: Nandu Kannu
Description: Erect herb; stem to 125 cm high, divaricately branched, thickened towards base to 3.5 cm in breadth, with long fibrous roots, fistulous, the cortex replaced by spongy, aerenchymatous tissue. Leaves oval to oblong-elliptic, 8.6-11.5 x 2.2-4.7 cm, cuneate or abruptly acute at base, subacute to obtuse at apex, entire, membranous, glaucous; petioles 1-3 cm long. Spikes ovoid, to 3 cm long, bluntly tapering to apex; peduncles to 6 cm long; flowers many. Bracts spathulate, to 3 x 2 mm, clawed, cuspidate-acute, inflexed over calyx. Bracteoles lateral to bracts, linear, 2-3 mm long. Calyx tube cupular, 1 mm long; lobes obovate-deltoid, 1 x 2 mm, concave, pale green. Corolla white; tube 1-1.5 mm long; lobes ovate-triangular. Filaments glabrous. Top of ovary truncate; stigma flattened, obscurely 2-lobed. Capsule depressed-globose, 3-3.5 mm in diameter, chartaceous; seeds oblong-cuneate, 0.5-0.8 x 0.2 mm, minutely ridged longitudinally, yellowish-brown.
22 Published articles of Sphenoclea zeylanica
1. Sphenoclea zeylanica (Sphenocleaceae) in North America-Dispersal, Ecology, and Morphology
Carter, Richard; Jones, Jordan C.; Goddard, Russell H.
CASTANEA Volume: 79 Issue: 1 Pages: 33-50 Published: MAR 2014
2. Host specific Alternaria.- a potential biocontrol agent for gooseweed (Sphenoclea zeylanica Gaertn.).
Chen, F. Y.; Chiang, M. Y.
Plant Protection Bulletin (Taichung) Volume: 46 Issue: 2 Pages: 131-142 Published: June 2004
3. Allelochemicals of the tropical weed Sphenoclea zeylanica
Hirai, N; Sakashita, S; Sano, T; et al.
PHYTOCHEMISTRY Volume: 55 Issue: 2 Pages: 131-140 Published: SEP 2000
4. Factors influencing biological control of Sphenoclea zeylanica with Alternaria alternata f. sp sphenocleae
Masangkay, RF; Paulitz, TC; Hallett, SG; et al.
PLANT DISEASE Volume: 83 Issue: 11 Pages: 1019-1024 Published: NOV 1999
5. Host range of Alternaria alternata f.sp sphenocleae causing leaf blight of Sphenoclea zeylanica
Masangkay, RF; Mabbayad, MO; Paulitz, TC; et al.
CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE Volume: 77 Issue: 1 Pages: 103-112 Published: JAN 1999
6. Emergence, growth and herbicidal sensitivity of Sphenoclea zeylanica Gaertn.
Kawana, Y.; Kojima, K.
Report of the Kyushu Branch of the Crop Science Society of Japan Issue: 64 Pages: 31-33 Published: 1998
7. Allelopathic effect of extract substances from gooseweed ( Sphenoclea zeylanica) on rice seedlings.
Premasthira, C. U.; Zungsontiporn, S.
Weed Research, Japan Volume: 41 Issue: 2 Pages: 79-83 Published: 1996
8. Allelopathic potential of gooseweed ( Sphenoclea zeylanica Gaertn.) in submerged soil.
Premasthira, C. U.; Zungsontiporn, S.
Weed Research, Japan Volume: 41 Issue: 2 Pages: 103-106 Published: 1996
9. Biological control of gooseweed (Sphenoclea zeylanica Gaertn.) in rice with an Alternaria species
Masangkay, R. F.; Paulitz, T. C.; Watson, A. K.
Conference: Annual Meeting of the American Phytopathological Society, North Central Division Location: Indianapolis, Indiana, USA Date: July 27-31, 1996
Phytopathology Volume: 86 Issue: 11 SUPPL. Pages: S22 Published: 1996
10. BIOLOGICAL-CONTROL OF GOOSEWEED (SPHENOCLEA-ZEYLANICA GAERTN) WITH AN ALTERNARIA SP
MABBAYAD, MO; WATSON, AK
CROP PROTECTION Volume: 14 Issue: 5 Pages: 429-433 Published: AUG 1995
11. On the floral development of Sphenoclea zeylanica (Sphenocleaceae, Campanulales): SEM-investigations on herbarium material
Erbar, Claudia
Botanische Jahrbuecher fuer Systematik Pflanzengeschichte und Pflanzengeographie Volume: 117 Issue: 4 Pages: 469-483 Published: 1995
12. GROWTH-BEHAVIOR AND LEAF MORPHOLOGY OF PHILIPPINE STRAINS OF SPHENOCLEA-ZEYLANICA SHOWING DIFFERENTIAL RESPONSE TO 2,4-D
MERCADO, BL; DEDATTA, SK; MIGO, TR; et al.
WEED RESEARCH Volume: 30 Issue: 4 Pages: 245-250 Published: AUG 1990
13. Comparative study of Sphenoclea zeylanica and Sesbania macrocarpa in rice field.
Bubey, A. N.
Research and Development Reporter Volume: 3 Issue: 2 Pages: 89-90 Published: 1986
14. Sphenoclea zeylanica as organic nitrogen source for rice production.
Dubey, A. N.
Research and Development Reporter Volume: 3 Issue: 1 Pages: 72-75 Published: 1986
15. ADDITIONS TO THE OKLAHOMA USA FLORA SPHENOCLEA-ZEYLANICA NEW-RECORD CAMPANULACEAE AND CERATOPHYLLUM-ECHINATUM NEW-RECORD CERATOPHYLLACEAE
COOPER J M
Proceedings of the Oklahoma Academy of Science Volume: 65 Pages: 67-68 Published: 1985
16. CULTURAL-CONTROL OF RICE ROOT NEMATODES (HIRSCHMANNIELLA SPP) WITH SPHENOCLEA-ZEYLANICA
MOHANDAS, C; RAO, YS; SAHU, SC
PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-ANIMAL SCIENCES Volume: 90 Issue: 4 Pages: 373-376 Published: 1981
17. ABOUT SPHENOCLEA-ZEYLANICA (SPHENOCLEACEAE)
MONOD, T
ADANSONIA Volume: 20 Issue: 2 Pages: 147-164 Published: 1980
18. CERCOSPORIDIUM HELLERI ON SPHENOCLEA ZEYLANICA - A NEW RECORD FOR INDIA
PONNAPPA, KM
CURRENT SCIENCE Volume: 36 Issue: 10 Pages: 273-& Published: 1967
19. EMBRYOGENESIS IN SPHENOCLEA ZEYLANICA
SWAMY, BG; PADMANABHAN, D
PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES SECTION A Volume: B 54 Issue: 4 Pages: 169-& Published: 1961
20. Vascular anatomy of the flower of Sphenoclea zeylanica Gaerten and some other related species
GUPTA, D. P.
PROC NATL INST SCI INDIA B BIOL SCI Volume: 25 Issue: (2) Pages: 55-64 Published: 1959
21. A contribution to the life history of Sphenoclea zeylanica Gaertn.
Kausik, S. B.; Subramanyam., K.
PROC INDIAN ACAD SCI SECT B Volume: 23 Issue: (6) Pages: 274-280 Published: 1946
22. Embryogenesis in Sphenoclea zeylanica
SWANY, B. G. L.; PADMANABHAN, D.
PROC INDIAN ACAD SCI SECT B Volume: 54 Issue: (4) Pages: 189-187 Published: 1931
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