1' 1 3' 3 2' 2 CLASS 5' 5 4' 4 MAGNOLIOPSIDA 77
5
256 C L A S S MAGNOLIOPSIDA flattened, becoming curved and twisted at maturity. Infrequent in rich woods and wooded coulees in the e, commonly planted elsewhere. May--Jun. honey locust. GYMNOCLADUS L a m . Gymnocladus d i o i c a (L.) Koch. T r e e s u p to 30 m tall. Leaves alternate, bipinnate to decompound with 5-9 pinnae; leaflets ovate, 2-7 cm long, with acuminate tips. Flowers polygamous, in terminal racemes or panicles, petals greenish; fruiting pods flattened, oblong, 10-20 cm long and 3-4 cm wide, curved. Seeds few to several, embedded in pulpy tissue; seed coats very hard and resistant to breaking. Rare to infrequent in rich wooded draws along the Big Sioux River in the e. May--Jun. Kentucky coffee tree. 77 FABACEAS the Bean Family (Key to Genera) 1 Plants shrubby, rarely becoming tree-like. 2 Flowers yellow, in clusters of 2-3; pod about 2 cm long .... C A R A G A N A 2' Flowers purple, in racemes; pod less than 1 cm long A M O R P H A 1' Plants herbaceous; occasionally woody stem bases apparent. 3 Principal leaves simple. 4 Anthers of 2 forms, stamens monadelphous; flowers yellowC R O T A L A R I A 4' Anthers uniform, stamens diadelphous; flowers with purple pigments A S T R A G A L U S 3' Principal leaves compound. 5 Leaflets even numbered; terminal part of the leaf ending in a tendril. 6 Style of flower rounded at its end with hairs covering the entire terminal 1 mmV I C I A 6' Style of flower flattened at its end with hairs only on the inner edge L A T H Y R U S 5' Leaflets odd numbered. 7 Leaves with 3-5 leaflets. 8 Foliage with glandular dots on the surface. 9 Petals 5, papilionaceous. 10 Leaves digitately-foliate P S O R A L E A 10' Leaves pinnately-foliate D A L E A 9' Petals 1-5, not papilionaceous D A L E A 8' Foliage lacking glandular dots. 11 Leaflets with serrations. 12 Flowers in racemes M E L I L O T U S 12' Flowers in capitate clusters. 11' 7' Leaves 23 F o l wi 24 24
Transcript of 1' 1 3' 3 2' 2 CLASS 5' 5 4' 4 MAGNOLIOPSIDA 77
256 CL
AS
S M
AG
NO
LIOPSID
AC
LASS M
AG
NO
LIOPSID
A
25
7
flatte
ne
d, b
ec
om
ing
cu
rve
d and tw
isted
at m
atu
rity. Infre
qu
en
tin ric
h w
oods and wooded c
ou
lee
s
in
the
e, co
mm
on
ly pla
nte
delsew
here. Ma
y--Ju
n. h
on
ey
locu
st.
GYMNOCLADUS Lam
.G
ymnocladus d
ioica
(L.) K
och. T
re
es
up
to 30 m
tall. L
ea
ve
sa
ltern
ate
, bip
inn
ate
to decom
pound with
5-9
pin
na
e; le
afle
tsovate, 2
-7 cm
lon
g, w
ith acum
inate tips
. Flo
we
rs polygam
ous, interm
inal racemes o
r pa
nic
les
, pe
tals
gre
en
ish
; fruitin
g p
od
sfla
tten
ed
, ob
lon
g, 1
0-2
0 cm
lon
g and 3
-4 cm
wide, cu
rved
. Se
ed
sfew
to se
vera
l, embedded
in p
ulp
y tissue
; se
ed
coa
ts very h
ard
and res
ista
nt
to
bre
ak
ing
. Ra
re
to
infre
qu
en
t in ric
h w
oodeddraw
s alo
ng
the
Big
Sioux R
iver
in th
e e
. Ma
y--Jun. K
en
tuc
ky
coffee tree
.
77 FAB
AC
EA
Sthe B
ean Fam
ily
(Key to G
enera)1 P
lan
ts sh
rub
by, ra
rely
becoming tre
e-lik
e.
2 Flo
we
rs ye
llow
, in clu
sters o
f 2-3
; po
d about 2
cm lo
ng
....C
AR
AG
AN
A2' F
low
ers p
urp
le, in
racemes; p
od
less th
an
1 cm
lon
gA
MO
RP
HA
1' Pla
nts herbaceous; o
ccasio
na
lly woody stem
bases apparent.3 P
rinc
ipa
l lea
ves sim
ple
.4 A
nth
ers
o
f
2 fo
rms
, stam
en
s monadelphous; flo
we
rsyellow
CR
OT
AL
AR
IA
4' An
the
rs un
iform
, stam
en
s dia
de
lph
ou
s; flow
ers
with
purple pigmentsA
ST
RA
GA
LU
S3' P
rincip
al le
ave
s compound.
5 Le
afle
ts e
ven
numbered; te
rmin
al p
art o
f the
lea
f en
din
gin a
ten
dril.
6 Sty
le o
f flow
er ro
un
de
d a
t it
s e
nd
with
ha
irscovering th
e e
ntire
term
ina
l 1 m
mV
IC
IA
6' Sty
le o
f flow
er fla
tten
ed
at its
end with
ha
irs on
lyon th
e in
ne
r edgeLA
TH
YR
US
5' Le
afle
ts o
dd
numbered.
7 Le
av
es
with
3-5
lea
flets
.8 F
olia
ge
with
gla
nd
ula
r do
ts on
the
surfa
ce.
9 Pe
tals
5, p
ap
ilion
ace
ou
s.10 L
ea
ves
dig
itate
ly-fo
liate
PS
OR
AL
EA
10' Leaves pin
na
tely
-folia
teD
AL
EA
9' Pe
tals 1
-5, n
ot p
ap
ilion
ace
ou
sDA
LE
A8' F
olia
ge
lackin
g g
lan
du
lar d
ots.
11 Le
afle
ts w
ith se
rratio
ns.
12 Flo
we
rs in
racemesM
EL
IL
OT
US
12' Flo
we
rs in ca
pita
te clu
sters.
13 Fru
its s
traig
htT
RI
FO
LI
UM
13' Fru
its c
oile
d o
r sic
kle
-shapedM
ED
IC
AG
O11' L
ea
flets
with
en
tire m
argins.14 F
ruit a
lom
en
t, bre
akiiig
tran
sverse
ly into
indehiscent 1-
se
ed
un
its or o
f 1 u
nit.
15 Flo
we
r pin
k pu
rple
; fruit 1
to se
vera
ljo
inte
dD
ES
MO
DI
UM
15' Flo
we
r cre
am
t
o w
hite
; fruit
a
1seeded u
nit a
nd
a s
talk
LE
SP
ED
EZ
A14' F
ruit a
leg
um
e, lo
ng
itud
ina
lly d
eh
isc
en
tw
ith se
vera
l seeds.16 F
low
ers
in a
xilla
ry o
r term
ina
l gro
up
sor clu
sters..
17 Le
afle
ts 5
LO
TU
S17' L
ea
flets
3T
vn
au
la
16' Flo
we
rs in racem
es, in a
xils
OF—
Ieavesand s
olita
ry,
or
few
at th
e ends o
flong peduncles.18 S
tam
en
s dis
tinc
t; lea
ve
s
wit
hlarge, o
vate
stip
ule
s 1
-2 cm
wide.
TH
ER
MO
PS
IS
18' Stam
ens dia
de
lph
ou
s; stip
ule
s, if
present, sma
ller.
19 Ste
ms tra
iling
or clim
bin
g.
20 Le
afle
ts 5
, rare
ly as m
anyas 7
AP
IO
S20' L
ea
flets
us
ua
lly 3
.21 S
tyle
gla
bro
us
; ke
el
petal n
ot
stro
ng
lycurved....A
MP
HIC
AR
PAE
A21' S
tyle
pubescent; ke
el
petal stron
gly
curved.S
TR
OP
HO
ST
YL
ES
19' Stem
s no
t stron
gly
trailin
g o
rclim
bing.22 P
lan
ts ca
esp
itose
; flow
ers
in racemesA
ST
RA
GA
LU
S22' P
lan
ts with
up
righ
t, lea
fystem
s; flow
ers s
olita
ry to
few, a
xilla
ryL
OT
US
7' Leaves with
more th
an
5 lea
flets
.23 F
olia
ge
with
gla
nd
ula
r do
ts (d
istin
ctly
vis
ible
with
10x ma
gn
ificatio
n).
24 Co
rolla
papilionaceous.25 F
ruit fe
w seeded, sp
iny
GL
YC
YR
RH
IZA
25' Fru
it 1-2
seeded, no
t spin
yDA
LE
A24' C
oro
lla n
ot p
ap
ilion
ace
ou
s.
