DIADELPHIA DECANDRIAi 
189 
latis ; spicis aggrega- 
te, elongatis; calycibus 
nudiusculis, pedicella- 
tis, dentibus 4 obtu- 
sis, unico acuminato ; 
leguminibus oligo- 
spermis. 
Sp. pi. 3. p. 970. Walt. p. 179- 
on petioles ; spikes 
long, clustered ; ca- 
lyx naked, pedicel- 
late, with 4 teeth ob- 
tuse and one acumi- 
nate ; pods few seed- 
ed. 
Mich. 2. p. 64. Pursh 2. p. 466. 
A shrub 10 — 16 feet high, with its young expanding branches very pu- 
bescent. Leaves alternate, unequally pinnate, deciduous. Leaflets oval, 
obtuse, sometimes slightly emarginated with a short point, pubescent. 
Floioers clustered, in terminal racemes. Racemes 4 — 6 inches long, gen- 
erally by threes. Calyx persistent, slightly pubescent, turbinate, border 
short and 5-cleft, the lower segment acuminate, longer than the rest, the 
two lateral acute, the upper ones broad and obtuse Vexillum of the co- 
rolla obovate, obtuse, twice as long as the calyx, dark purple. Filaments 
10, unequal, longer than the corolla, purple, monadelphous. Anthers yel- 
low. 
Grows along the margins of rivers, very common in what are called in 
this country, tide lands. 
Flowers in April. 
2. PuBESCENS. 
A. humilis, frutes- 
cens ; foliis brevissime 
petiolatis, utrinque ob- 
tusis, pubescentibus; 
spicis paniculatis, e- 
longatis, pubescenti- 
bus; calycibus subses- 
silibus, dentibus om- 
nibus acuminatis. 
Small, shrubby ; 
leaves on very short 
petioles, obtuse at each 
eridfpulTesceitq "spikes 
long, panicled, pubes- 
cent ; calyx nearly 
sessile, with the teeth 
all acuminate. 
Sp. pi. 3. p. 970. Pursh.2. p. 467. 
A. Herbacea. Walt. 179. Nutt. 2. p. 91. 
A. Pumila. Mich. 2. p. 64. 
A small plant rather shrubby than herbaceous, "2 — Stem 
pubescent and slightly muricate. Leaves equally pinnate, (about 24 pair.) 
Leaflets obtuse, mucronate, with pellucid dots, very pubescent and some- 
what hoary. Calyx purple,, the segments nearly equal. Vexillum of the 
