GRASS FAMILY. . 
2. Alopecurus geniculatus I, Marsh Foxtail. 
Alopecurus geniculatus V,. Sp. Pl. 60. 1753. 
Alopecurus fulvus J. E. Smith, Engl. Bot. p/. 7467. 1 
Alopecurus aristulatus Michx. F1. Bor. Am. I: 43. 1 
Alopecurus geniculatus var. aristulatus Torr. Fl, U. 
I:97. 1824. 
Glabrous or very nearly so, culms 6’-19/ tall, erect, 
or sometimes decumbent at the base, simple or spar- 
ingly branched, smooth. Sheaths usually shorter 
than the internodes, loose or somewhat inflated ; lig- 
ule 114’’-3’’ long; leaves 1-6’ long, 14’’-2’’ wide, sca- 
brous, especially above; spikes 1/—3/ in length, 2//-4’’ 
thick; outer scales of the spikelet slightly united at the 
base, 1/’-114’’ long, obtuse or subacute, smooth, gla- 
brous except on the pubescent lateral nerves and 
strongly ciliate keel; third scale somewhat shorter, 
obtuse, smooth and glabrous, the awn inserted at or 
below the middle, equalling or exceeding it. 
In wet soil, Newfoundland to British Columbia, south 
to Florida, Tennessee, Arizona and California. Also in 
Europe and Asia. July-Sept. 
805 
803. 
ST 
3. Alopecurus praténsis I. Meadow Foxtail. 
149 
(Big. 337.) 
(Fig. 338.) 
Alopecurus pratensis I. Sp. Pl. 60. 1753. 
Nearly or quite glabrous, slender, culms 1°-2 2° tall, 
erect, simple. Sheaths usually much shorter than the 
internodes, loose or somewhat inflated; ligule about 
%4/ long, erose-truncate; leaves 114/-3}4’ long, 1//— 
3// wide, scabrous, at least above; spikes 114/-214’ in 
length, 4’’-6’’ thick; outer scales of the spikelet unit- 
ed at the base for about one-quarter their length, 2’/— 
3’ long, acute, glabrous except the sparingly pubes- 
cent lateral nerves and the strongly ciliate keel; third 
scale slightly shorter, obtuse, smooth and glabrous, 
the awn inserted about quarter way up the scale and 
exceeding it. 
In meadows, Nova Scotia to southern New York and 
Ohio. Naturalized from Europe. June-July. 
4. Alopecurus alpinus J. E. Smith. Alpine 
Foxtail. (Fig. 339.) 
Alopecurus alpinus J. EX. Smith, Engl. Bot. p/. 1726. 1803. 
Culms glabrous and smooth or nearly so, 5/—2° tall, 
erect, sometimes decumbent at the base, simple. Sheaths 
generally shorter than the internodes, loose, often inflated; 
ligule 1//-2’” long, rounded at the apex; leaves 1/-7/ 
long, 1//-3/’ wide, smooth beneath, slightly scabrous 
above; spike 114’ in length or less, 3/’-6’’ thick; outer 
scales of the spikelet united only at the base, 2’’ long, 
obtuse, villous and ciliate; third scale about equalling the 
outer ones, obtuse, glabrous except at the villous apex, 
the awn inserted about one-third the way up, a little ex- 
ceeding the scale. 
Greenland and Labrador to Alaska. Also in arctic and 
alpine Europe and Asia. Summer. 
