588 AMARANTHACEAE. 
Amaranthus hybridus paniculatus (1..) Uline & Bray, Mem. Torr. Club, 5: 145. 1894. 
Amaranthus paniculatus 1. Sp. Pl. Ed. 2, 1406. _ 1763. 
Flowers and foliage more or less deeply tinged with red or purple; leaves sometimes lanceolate 
and bracts shorter. Range of the type, but less abundant. 
Ai 3. Amaranthus spinosus L. Spiny 
Amaranth. (Fig. 1400.) 
Amaranthus spinosus I, Sp. Pl. 991. 1753. 
Rather dark green, glabrous or somewhat pu- 
bescent above, stem stout, erect or ascending, 
ridged, usually much branched, sometimes red, 1°- 
4° high. Leaves ovate, rhombic-ovate or the upper 
lanceolate, slender-petioled, acute at both ends, 1/- 
3/ long, with a pair of rigid stipular spines 4 /—1/ 
long at each node, the midvein excurrent; flowers 
in numerous capitate axillary clusters, mostly 
shorter than the petioles and in dense terminal 
linear-cylindric spreading or drooping spikes 1/-6/ 
long; bracts lanceolate-subulate about as long as 
the 5 scarious oblong mucronate-tipped 1-nerved 
sepals, and the thin imperfectly circumscissile 
utricle; stamens 5. 
In waste and cultivated soil, Massachusetts to Penn- 
sylvania, Ohioand Kansas, south to Floridaand Mexico. 
Naturalized from tropical America. A troublesome 
E weed southward. June-Sept. 
4. Amaranthus blitoides S. Wats. 
Prostrate Amaranth. (Fig. 14o1.) 
A. blitoides S. Wats. Proc. Am. Acad. 12: 273. 1877. 
Nearly or quite glabrous, rather pale green, 
stem diffusely branched, prostrate and spreading 
on the ground, ridged, 6’-2° long, often forming 
mats. Leaves obovate or spatulate, 4 ’-1’ long, 
obtuse or acute at the apex, narrowed into slen- 
der petioles, sometimes longer than the blades; 
flowers in small axillary clusters mostly shorter 
than the petioles; bracts lanceolate-subulate, lit- 
tle longer than the 4 or 5 oblong-lanceolate acute 
or cuspidate sepals; stamens 3; utricle nearly 
smooth, circumscissile, equalling or slightly 
longer than the sepals. 
In waste places, especially along the principal 
routes of travel, Maine to southern Ontario and Min- 
nesota, south to New Jersey, Missouri and Kansas. 
Naturalized from west of the Rocky Mountains, 
where it appears to be indigenous from Utah and 
Colorado to Mexico. June—Oct. 
5. Amaranthus graecizans L. Tum- 
ble-weed. (Fig. 1402.) 
Amaranthus graecizans I. Sp. Pl. 990. 1753. 
Amaranthus albus Y,. Sp. Pl. Ed. 2, 1404. 1763. 
Glabrous, pale green, stem erect, bushy- 
branched, whitish, 6’—2° tall, the branches slen- 
der, ascending. Leaves oblong, spatulate or 
obovate, %/’-114’ long, slender-petioled,. papil- 
lose, the midvein excurrent; flowers polyga- 
mous, several together in small axillary clusters 
shorter than the leaves, commonly not longer 
than the petioles; bracts subulate, pungent- 
pointed, spreading, much longer than the 3 
membranous sepals; stamers 3; utricle wrinkled, 
circumscissile, longer than: he sepals. 
In waste and cultivated so1., throughout North 
America. Naturalized from tropical America. 
The leaves fall away in autumn, and on the western 
plains the plant, thus denuded, is freely uprooted 
and blown before the wind, whence the popular 
name. June-Sept. 
i 
