Echinodorus horizontalis

Primary tabs

Echinodorus horizontalis

Content

<<<Flowers>Stamens>Anthers>Length

ca. 1.5 mm long1
1. 004-004-003-001

<<<Flowers>Stamens>Apex>Shape

obtuse2
2. 004-004-004-001

<<<Flowers>Stamens>Filaments>Length

ca. 1.5 mm long3
3. 004-004-002-001

<<<Fruits>Glands>Lower half of fruit>Gland number

1-44
4. 005-003-003-001

<<<Fruits>Glands>Upper half of fruit>Gland number

4-65
5. 005-003-002-001

<<Flowers>Petals>Dimensions

5-6 x ca. 4 mm6
6. 004-003-001

<<Flowers>Sepals>Dimensions

10 x 8 mm7
7. 004-002-002

<<Flowers>Sepals>Growth form

erect8
8. 004-002-001

<<Flowers>Sepals>Vein number

22-28-veined9
9. 004-002-003

<<Flowers>Stamens>Anthers

anthers versatile, ,10
10. 004-004-003

<<Flowers>Stamens>Apex

apex ;11
11. 004-004-004

<<Flowers>Stamens>Filaments

filaments ,12
12. 004-004-002

<<Flowers>Stamens>Stamen number

24-3013
13. 004-004-001

<<Fruits>Beak>Growth form

recurved14
14. 005-004-002

<<Fruits>Beak>Length

to 0.8 mm long15
15. 005-004-003

<<Fruits>Beak>Position

terminal16
16. 005-004-001

<<Fruits>Glands>Gland number

6-917
17. 005-003-001

<<Fruits>Glands>Lower half of fruit

in lower half of fruit18
18. 005-003-003

<<Fruits>Glands>Upper half of fruit

in upper half19
19. 005-003-002

<<Habit>Rhizome>Growth form

erect20
20. 001-003-001

<<Inflorescences>Bracts>Apex

apex long-acuminate;21
21. 003-006-003

<<Inflorescences>Bracts>Dimensions

30 x 0.3-0.6 mm22
22. 003-006-002

<<Inflorescences>Bracts>Shape

ovate23
23. 003-006-001

<<Inflorescences>Flower number>Flower number per whorl

3-624
24. 003-003-001

<<Inflorescences>Pedicels>Dimensions

2 x 0.05-0.1 cm25
25. 003-007-002

<<Inflorescences>Pedicels>Growth form

in flower spreading, in fruit reflexed26
26. 003-007-001

<<Inflorescences>Peduncle>Dimensions

50 x 0.01-0.04 cm27
27. 003-004-001

<<Leaves>Apex>Shape

acuminate28
28. 002-006-001

<<Leaves>Basal sheaths>Length

to 10 cm long29
29. 002-003-001

<<Leaves>Base>Shape

cordate30
30. 002-007-001

<<Leaves>Blade>Dimensions

10-25 x 10-15 cm31
31. 002-004-002

<<Leaves>Blade>Shape

ovate32
32. 002-004-001

<<Leaves>Lobes>Shape

rounded33
33. 002-008-001

<<Leaves>Margins>Margin type

entire34
34. 002-005-001

<<Leaves>Petiole>Dimensions

50-60 x 0.5 cm35
35. 002-002-002

<<Leaves>Petiole>Relative dimensions

2-4 times as long as blade36
36. 002-002-001

<<Leaves>Veins>Vein number

7-1137
37. 002-009-001

<Flowers>Carpels

carpels numerous.38
38. 004-005

<Flowers>Petals

petals not clawed, ;39
39. 004-003

<Flowers>Sepals

sepals , appressed to mature fruiting aggregate, , , not papillose;40
40. 004-002

<Flowers>Stamens

stamens ,41
41. 004-004

<Flowers>Width

ca. 1.5 cm wide42
42. 004-001

<Fruits>Beak

beak , ,43
43. 005-004

<Fruits>Dimensions

2.5-3 x 0.2-0.8 mm44
44. 005-001

<Fruits>Glands

glands , circular, irregularly arranged, often and45
45. 005-003

<Fruits>Rib number

3-ribbed46
46. 005-002

<Habit>Hairs

glabrous47
47. 001-002

<Habit>Height

to 150 cm tall48
48. 001-001

<Habit>Rhizome

rhizome short, ;49
49. 001-003

<Habit>Stolons

stolon present.50
50. 001-004

<Inflorescences>Bracts

bracts longer than pedicel subtended, coarse inward, membranaceous along margin, , ,51
51. 003-006

<Inflorescences>Dimensions

100 x 3-4 cm52
52. 003-002

<Inflorescences>Flower number

whorls with flowers;53
53. 003-003

<Inflorescences>Pedicels

pedicels , cylindrical, .54
54. 003-007

<Inflorescences>Peduncle

peduncle terete, ;55
55. 003-004

<Inflorescences>Rachises

rachis between whorls terete;56
56. 003-005

<Inflorescences>Whorl number

3-457
57. 003-001

<Leaves>Apex

apex ,58
58. 002-006

<Leaves>Basal sheaths

basal sheath ,59
59. 002-003

<Leaves>Base

base ,60
60. 002-007

<Leaves>Blade

blade , ,61
61. 002-004

<Leaves>Colour

olive-green to greenish brown62
62. 002-001

<Leaves>Lobes

lobes ,63
63. 002-008

<Leaves>Margins

margin ,64
64. 002-005

<Leaves>Pellucid markings

pellucid markings present, forming a network independent of veins.65
65. 002-010

<Leaves>Petiole

petiole terete, , ,66
66. 002-002

<Leaves>Veins

veins ,67
67. 002-009

Description

Herb, perennial, to 150 cm tall, glabrous; rhizome short, erect; stolon present. Leaves emerged, olive-green to greenish brown, petiole terete, 2-4 times as long as blade, 50-60 x 0.5 cm, basal sheath to 10 cm long, blade ovate, 10-25 x 10-15 cm, margin entire, apex acuminate, base cordate, lobes rounded, veins 7-11, pellucid markings present, forming a network independent of veins. Inflorescence racemose, decumbant, with 3-4 whorls, overtopping leaves, vegetatively proliferating, 100 x 3-4 cm; whorls with 3-6 flowers; peduncle terete, 50 x 0.01-0.04 cm; rachis between whorls terete; bracts longer than pedicel subtended, coarse inward, membranaceous along margin, ovate, 30 x 0.3-0.6 mm, apex long-acuminate; pedicels in flower spreading, in fruit reflexed, cylindrical, 2 x 0.05-0.1 cm. Flowers ca. 1.5 cm wide; sepals erect, appressed to mature fruiting aggregate, 10 x 8 mm, 22-28-veined, not papillose; petals not clawed, 5-6 x ca. 4 mm; stamens 24-30, filaments ca. 1.5 mm long, anthers versatile, ca. 1.5 mm long, apex obtuse; carpels numerous. Fruit terete, clavate, 2.5-3 x 0.2-0.8 mm, 3-ribbed, without keel, glands 6-9, circular, irregularly arranged, often 4-6 in upper half and 1-4 in lower half of fruit, beak terminal, recurved, to 0.8 mm long.

Distribution

Guyana present present, Southern America: Colombia (Colombia present); Peru (Peru present); Venezuela (Venezuela present)
Colombia, Venezuela, Guyana, S to Peru and Brazil, at ; ca. 25 collections examined, including 1 from Guyana (GU: 1).

Flowers

Flowers ;68
68. 004

Fruits

Fruit terete, clavate, , , without keel, , .69
69. 005

Habit

Herb, perennial, , ;70
70. 001

Individuals Association

Guyana, NW-Distr., Barama R., Kariako, Awaramu, van Andel et al. 1107

Inflorescences

Inflorescence racemose, decumbant, with whorls, overtopping leaves, vegetatively proliferating, ;71
71. 003

Leaves

Leaves emerged, ,72
72. 002

Phenology

Flowering and fruiting .

Uses

Sold under German commercial name "Horizontale Amazonpflanze" ("Horizontal Amazon plant").