| 1a |
The longest filament
(or filaments of three anterior stamens) sigmoidally curved, longest more
than 2.5 cm long
|
2
|
|
1b
|
The longest filament
straight, less than 1 cm long
|
8
|
|
|
|
|
|
2a
|
Flowers yellow or
golden yellow
|
3
|
|
2b
|
Flowers pink,
reddish to white
|
4
|
|
|
|
|
|
3a
|
Leaflets less than
10 pairs, longer than 5 cm, glabrous on both surfaces
|
Cassia fistula
|
|
3b
|
Leaflets 10 or more
pairs, shorter than 5 cm, puberulent on both surfaces; petals 11-15 mm long
|
Cassia moschata
|
|
|
|
|
|
4a
|
Filaments of 3
longer stamens not swollen in the middle; pedicels less than 2 cm long;
petals 10-15 mm long
|
5
|
|
4b
|
Filaments of 3
longer stamens swollen in the middle; pedicels more than 2.5 cm long; petals
usually longer than 15 mm
|
6
|
|
|
|
|
|
5a
|
Pod more than 35 cm
long with pulp inside, usually broader than 2.5 cm
|
Cassia grandis
|
|
5b
|
Pod less than 35 cm
long with dry pith inside, usually narrower than 2.5 cm
|
Cassia roxburghii
|
|
|
|
|
|
6a
|
Stipules reniform, larger than 15 mm, cuspidate; leaflets velvety on both surfaces; ovary
glabrous
|
Cassia renigera
|
|
6b
|
Stipules less than 15 mm; leaflets glabrous or silky beneath only; ovary hairy
|
7
|
|
|
|
|
|
7a
|
Stipules 12-15 mm
long, leafy; leaflets usually rounded or obtuse at tip; calyx dark red;
petals 2.5-3.5 cm long, pink to dark red
|
Cassia javanica ssp. javanica
|
|
7b
|
Stipules 5 mm long,
narrow, not leafy; leaflets acute at tip; calyx Green; petals 1.2-2.5 cm
long, pink to nearly white, turning yellow
|
Cassia javanica ssp. nodosa
|
|
|
|
|
|
8a
|
Ovary stalk less
than 0.9 mm long, fruitless than 9 cm long; braceoles present; legume
elastically coiling
|
9
|
|
8b
|
Ovary stalk more
than 0.9 mm long, fruit more than 9 cm long; bracteoles absent; legume not
elastically coiling
|
14
|
|
|
|
|
|
9a
|
Leaflets 2 pairs;
one linear gland present between each pair or only one pair of leaflets;
leaflets broader than 1 cm; stamens 5(2-7)
|
Chamaecrista absus
|
|
9b
|
Leaflets more than 2
pairs; glands present on petiole below leaflets; Leaflets linear, narrower
than 1 cm; stamens 10 or 4-5
|
10
|
|
|
|
|
|
10a
|
Gland on petiole
stalked, just below the lowest pair of leaflets
|
11
|
|
10b
|
Gland on petiole
sessile
|
12
|
|
|
|
|
|
11a
|
Stamens 5; pedicel
less than 7 mm long; sepals 5-6 mm long
|
Chamaecrista pumila
|
|
11b
|
Stamens 10; pedicel
10-15 mm long; sepals 6-8 mm long
|
Chamaecrista kleinii
|
|
|
|
|
|
12a
|
Leaflets usually in 25-60 pairs
|
Chamaecrista
mimosoides
|
|
12b
|
Leaflets usually in
less than 25 pairs
|
13
|
|
|
|
|
|
13a
|
Stamens 4-5;
leaflets 5-10 mm long; stem with short curved hairs leaves less than 6 cm
long
|
Chamaecrista nomame
|
|
13b
|
Stamens 10,
sometimes 7; leaflets 8-14 mm long; stem with spreading hairs; leaves longer
than 6 cm
|
Chamaecrista
leschenaultiana
|
|
|
|
|
|
14a
|
Leaves without
glands
|
15
|
|
14b
|
Leaves with glands
on rachis or petiole
|
23
|
|
|
|
|
|
15a
|
Pod cylindrical or
4-angled; leaflets 10-16 pairs, 3-9 cm long; pod 15-30 cm long, 1 cm thick
|
Senna spectabilis
|
|
15b
|
Pod compressed
|
16
|
|
|
|
|
|
16a
|
Leaflets 5 cm or
more long; pod winged
|
Senna alata
|
|
16b
|
Leaflets less than 5
cm long; pod not winged
|
17
|
|
|
|
|
|
17a
|
Pod elliptic-oblong
to falcate, less than 7 cm long
|
18
|
|
17b
|
Pod linear-oblong,
longer than 7 cm
|
20
|
|
|
|
|
|
18a
|
Leaflets narrower
usually less than 10 mm broad, acute; pod 3-7 cm long, oblong to subfalcate,
valves not crested
|
Senna alexandrina
|
|
18b
|
Leaflets broader
usually broader than 10 mm, obtuse; pod 3-6 cm long, falcate, valves with
longitudinal ridge of raised crests
|
19
|
|
|
|
|
|
19a
|
Raceme 10-25 cm
long, longer than subtending leaves; sepals 9-13 mm long; petals 12-20 mm
long
|
Senna italica ssp. italica
|
|
19b
|
Raceme less than 10
cm long, shorter than subtending leaves; sepals 6-8 mm long; petals 8-9 mm
long
|
Senna italica ssp. micrantha
|
|
|
|
|
|
20a
|
Pod 15-30 cm long,
1-2 cm broad; stipules minute, subulate, less than 3 mm long
|
Senna siamea
|
|
20b
|
Pod shorter than 15
cm; stipules minute or larger
|
21
|
|
|
|
|
|
21a
|
Inflorescence
subspicate; pedicel 5-7 mm long; stipules foliaceous, 1.5-2.5 cm long; shrub;
pod pilose
|
Senna didymobotrya
|
|
21b
|
Inflorescence
paniculate; pedicel longer than 10 mm; pod glabrous
|
22
|
|
|
|
|
|
22a
|
Shrub; stipules
minute, less than 3 mm long; leaves 10-15 cm long; pod 7-12 cm long
|
Senna montana
|
|
22b
|
Tree; stipules
foliaceous, about 9 mm long with filiform tip; leaves 15-30 cm long; pod
12-15 cm long
|
Senna timoriensis
|
|
|
|
|
|
23a
|
Glands on rachis
between pairs of leaflets, none on petiole
|
24
|
|
23b
|
Gland on petiole,
none on rachis between pairs of leaflets
|
38
|
|
|
|
|
|
24a
|
Pod terete or
subterete, broader than 10 mm
|
25
|
|
24b
|
Pod compressed or if
terete then less than 8 mm broad
|
27
|
|
|
|
|
|
25a
|
Leaflets 2 pairs;
gland between lower pair of leaflets; petals 2-3 cm long
|
Senna bacillaris
|
|
25b
|
Leaflets 3-5 pairs;
petals 1-2 cm long
|
26
|
|
|
|
|
|
26a
|
Gland only between
lowest pairs of leaflets; leaflets rounded or subacute
|
Senna bicapsularis
|
|
26b
|
Glands between
leaflets of each pair; leaflets acuminate
|
Senna
septemtrionalis
|
|
|
|
|
|
27a
|
Stipules reniform,
broader than 7 mm, persistent
|
Senna auriculata
|
|
27b
|
Stipules linear less
than 5 mm broad, caducous
|
28
|
|
|
|
|
|
28a
|
Leaflets 12 or more
pairs
|
Senna multijuga
|
|
28b
|
Leaflets less than
12 pairs
|
29
|
|
|
|
|
|
29a
|
Pods 1-2 cm wide
|
30
|
|
29b
|
Pods less than 1 cm
wide
|
33
|
|
|
|
|
|
30a
|
Glands clavate or
sessile, between all or most pairs of leaflets, pod tomentose or glabrous
|
31
|
|
30b
|
Glands clavate
usually between lowest two pairs of leaflets; pod glabrous
|
32
|
|
|
|
|
|
31a
|
Young branches
tomentose; leaflets 4-8 pairs, densely tomentose especially beneath, oblong
to elliptic, 2-3 cm long, glands sessile; pod 10-14 cm long, tomentose, 50-90
seeded.
|
Senna glandulosa
|
|
31b
|
Young branches
glabrous; leaflets 3-5 pairs, almost glabrous, ovate to ovate elliptic, 4-11
cm long; glands clavate or conical; pod 6-10 cm long, glabrous.
|
Senna floribunda
|
|
|
|
|
|
32a
|
Leaflets 4-6 pairs;
leaves 15-30 cm long; stalk of pod 10-20 mm long
|
Senna sulfurea
|
|
32b
|
Leaflets 6-9 pairs;
leaves 10-15 cm long; stalk of pod 5-7 mm long
|
Senna surattensis
|
|
|
|
|
|
33a
|
Leaves with 5-15
pairs of leaflets, generally clustered 3-5 together at nodes; leaflets 4-10mm
long; pod 8-15 cm long.
|
Senna polyphylla
|
|
33b
|
Leaves with 2-7
pairs of leaflets, occurring singly at nodes; leaflets longer than 15 mm
|
34
|
|
|
|
|
|
34a
|
Leaflets 4-7 pairs,
2-3 cm long; flowers in pairs in leaf axils; pod 6-8 cm long
|
Senna pallida
|
|
34b
|
Leaflets 2-5 pairs;
flowers more than two in short racemes
|
35
|
|
|
|
|
|
35a
|
Leaflets ovate or
oblong, not obovate; Leaflets 2-3 pairs, oblong or oblong-lanceolate, 2.5-5
cm long; pod 7-9 mm broad
|
Senna corymbosa
|
|
35b
|
Pods obovate; leaflets
3-5 pairs.
|
36
|
|
|
|
|
|
36a
|
Leaflets 4 pairs
(3-5); glands between all or lowest pair of leaflets; pod 3-5 cm long, 5-10
seeded
|
Senna uniflora
|
|
36b
|
Leaflets 3 pairs
glands between lowest 1-2 pairs; pod longer than 10 cm; more than 20 seeded
|
37
|
|
|
|
|
|
37a
|
Glands 2, between
lowest two pairs of leaflets; sepals glabrous; petals 8-12 mm long; anthers
of three large stamens rounded at tip; pedicel 12-15 mm long in fruit
|
Senna tora
|
|
37b
|
Gland only one
between lowest pair of leaflets; sepals hairy; petals 12-15 mm long; anthers
of three large stamens narrowed at tip; pedicel 30 mm long in fruit
|
Senna obtusifolia
|
|
|
|
|
|
38a
|
Plants hirsute;
leaves with 3-5 pairs of leaflets; gland subclavate, near the base of
petiole; pod 12-15 cm long, 3-7 mm wide, hirsute, linear, curved
|
Senna hirsuta
|
|
38b
|
Plants glabrous or
subglabrous; Leaves with 4-10 pairs of leaflets; gland clavate or
hemispheric; fruit shorter than 13 cm, glabrous at maturity
|
39
|
|
|
|
|
|
39b
|
Gland at base of
petiole, sessile, hemispherical; leaflets 3-6 pairs; pod 10-13 cm long,
compressed, glabrous, often slightly curved, 20-30 seeded, torulose when
mature
|
Senna occidentalis
|
|
39b
|
Gland situated 3-10
mm above the base of petiole, clavate; leaflets 3-12 pairs; pod 5-10 cm long,
somewhat inflated, puberulent when young, glabrous when mature, not curved,
30-40 seeded, not torulose when mature
|
40
|
|
|
|
|
|
40a
|
Leaflets 4-12 pairs, 4-9 cm
long, acute or mucronate, branches not purple; pod 9-10 cm long |
Senna sophera var. sophera
|
|
40b
|
Leaflets 3-5 pairs, less than 3
cm long, obtuse at apex; branches slender, purple; pod 5-8 cm long |
Senna sophera var. purpurea
|
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