Eichhornia azurea

Primary tabs

Eichhornia azurea

Content

<<<<Sessile leaves>Petiolated leaves>Blade>Shape>Length

7-16 cm long1
1. 003-003-001-001-001

<<<<Sessile leaves>Petiolated leaves>Blade>Shape>Width

2.3-16 cm wide2
2. 003-003-001-001-002

<<<Capsules>Seeds>Wings>Shape

longitudinal3
3. 006-002-003-002

<<<Capsules>Seeds>Wings>Wing number

10-134
4. 006-002-003-001

<<<Flowers>Ovary>Stigma>Hairs

sparsely pilose5
5. 005-005-002-002

<<<Flowers>Ovary>Stigma>Shape

capitate6
6. 005-005-002-001

<<<Flowers>Stamens>Anthers>Length

1.2-2.3 mm long7
7. 005-004-003-001

<<<Flowers>Stamens>Lower stamens>Length

15-29 mm long8
8. 005-004-002-001

<<<Flowers>Stamens>Upper stamens>Length

6-20 mm long9
9. 005-004-001-001

<<<Flowers>Tepals>Margins>Margin type

erose10
10. 005-003-003-001

<<<Flowers>Tepals>Upper tepals>Colour

dark blue at base with a yellow spot above11
11. 005-003-004-001

<<<Inflorescences>Peduncle>Hairs>Colour

orange12
12. 004-002-002-001

<<<Sessile leaves>Petiolated leaves>Blade>Shape

round, , , with anobtuse apex and a truncate to obtuse base13
13. 003-003-001-001

<<Capsules>Seeds>Length

1-1.8 mm long14
14. 006-002-001

<<Capsules>Seeds>Width

0.8-1.1 mm wide15
15. 006-002-002

<<Capsules>Seeds>Wings

with wings16
16. 006-002-003

<<Flowers>Ovary>Length

2-5 mm long17
17. 005-005-001

<<Flowers>Ovary>Stigma

stigma , ;18
18. 005-005-002

<<Flowers>Stamens>Anthers

anthers ;19
19. 005-004-003

<<Flowers>Stamens>Lower stamens

lower stamens20
20. 005-004-002

<<Flowers>Stamens>Upper stamens

upper stamens21
21. 005-004-001

<<Flowers>Tepals>Length

13-25 mm long22
22. 005-003-002

<<Flowers>Tepals>Margins

with margins23
23. 005-003-003

<<Flowers>Tepals>Shape

obtuse to acute at apex24
24. 005-003-001

<<Flowers>Tepals>Upper tepals

the central upper tepal25
25. 005-003-004

<<Flowers>Tube>Length

15-20 mm long26
26. 005-002-001

<<Inflorescences>Peduncle>Hairs

pubescent with hairs27
27. 004-002-002

<<Inflorescences>Peduncle>Length

1.9-15 cm long28
28. 004-002-001

<<Inflorescences>Spathe>Length

3-6 cm long29
29. 004-003-002

<<Inflorescences>Spathe>Shape

obovate30
30. 004-003-001

<<Sessile leaves>Petiolated leaves>Blade

the blade ;31
31. 003-003-001

<<Sessile leaves>Petiole>Length

11-25 cm long32
32. 003-004-001

<<Vegetative stems>Flowering stems>Hairs

glabrous33
33. 002-002-001

<<Vegetative stems>Flowering stems>Length

8-12 cm long34
34. 002-002-002

<Capsules>Length

about 9 mm long35
35. 006-001

<Capsules>Seeds

seeds , .36
36. 006-002

<Flowers>Colour

blue or white37
37. 005-001

<Flowers>Ovary

ovary ,38
38. 005-005

<Flowers>Stamens

, ,39
39. 005-004

<Flowers>Style

tristylous.40
40. 005-006

<Flowers>Tepals

tepals , , , ;41
41. 005-003

<Flowers>Tube

tube ,42
42. 005-002

<Inflorescences>Flower number

7-5043
43. 004-001

<Inflorescences>Peduncle

peduncle , ;44
44. 004-002

<Inflorescences>Spathe

spathe , .45
45. 004-003

<Sessile leaves>Length

6-11 cm long46
46. 003-002

<Sessile leaves>Petiolated leaves

petiolate leaves emersed,47
47. 003-003

<Sessile leaves>Petiole

petiole .48
48. 003-004

<Sessile leaves>Shape

linear, acuminate at apex49
49. 003-001

<Vegetative stems>Flowering stems

flowering stem , .50
50. 002-002

<Vegetative stems>Shape

elongate51
51. 002-001

Capsules

Capsule ;52
52. 006

Common Name

English (French Guiana): duaBan

Description

Perennial, rooted in mud. Vegetative stem elongate, developing to and growing at the water surface; flowering stem glabrous, 8-12 cm long. Sessile leaves alternate, linear, acuminate at apex, 6-11 cm long; petiolate leaves emersed, the blade round, 7-16 cm long, 2.3-16 cm wide, with anobtuse apex and a truncate to obtuse base; petiole 11-25 cm long. Inflorescence a spike with 7-50 flowers, the inflorescence developing over several days; peduncle 1.9-15 cm long, pubescent with orange hairs; spathe obovate, 3-6 cm long. Flowers blue or white, tube 15-20 mm long, tepals obtuse to acute at apex, 13-25 mm long, with erose margins, the central upper tepal dark blue at base with a yellow spot above; upper stamens 6-20 mm long, lower stamens 15-29 mm long, anthers 1.2-2.3 mm long; ovary 2-5 mm long, stigma capitate, sparsely pilose; tristylous. Capsule about 9 mm long; seeds 1-1.8 mm long, 0.8-1.1 mm widewith 10-13longitudinal wings.

Distribution

Central and South America present, Guianas present
Central and South America; over 100 collecions studied, 16 from the Guianas (GU: 13; SU: 1; FG: 2).

Flowers

Flowers ,53
53. 005

Habit

Perennial, rooted in mud.54
54. 001

Individuals Association

Suriname, Kappler 1842 Guyana, jct. of Yarikita and Amakura Rs., A. S. Hitchcock 17648 Guyana, Guyana, Rupununi R., Smith 2233 Cayenne, Richard s.n. Martin s.n.

Inflorescences

Inflorescence a spike with flowers, the inflorescence developing over several days;55
55. 004

Sessile leaves

Sessile leaves alternate, , ;56
56. 003

Vegetative stems

Vegetative stem , developing to and growing at the water surface;57
57. 002