Vou. II.] MUSTARD FAMILY. 
8. Draba brachycarpa Nutt. Short- 
fruited Whitlow-grass. (Fig. 1762.) 
Draba brachycarpa Nutt.;T. & G. Fl. N. A. 1: 108, 1838. 
Annual, tufted, 2’-5’ high, loosely stellate-pubes- 
cent, leafy to the inflorescence. Basal leaves ovate 
or obovate, 4’’-6’’ long, obtuse, sparingly dentate 
or entire; stem-leaves smaller, sessile, oblong, en- 
tire; pedicels ascending, 1//-2’” long in fruit; 
raceme elongating; flowers yellow, 1/’ broad; 
petals somewhat longer than the calyx, sometimes 
wanting; pods oblong, acute, 114’/-2’’ long, %4’’ 
broad; style minute. 
Dry hills and fields, Virginia to Illinois and Missouri, 
south to Georgia and Louisiana. March-—May. 
g. Draba nemorosa I,. Wood Whitlow- 
grass. (Fig. 1763.) 
Draba nemorosa I,. Sp. Pl. 643. 1753. 
Annual, loosely stellate-pubescent, 6/-12’ high, 
branching below, leafy to the inflorescence. Leaves 
oblong-ovate, or lanceolate, obtuse, sessile, dentate, 
the lower 10’/-12’’ long, 5/’-7’’ wide, the upper 
smaller; flowers yellow, fading to whitish, 1/” broad; 
petals notched, slightly exceeding the calyx; pedi- 
cels divaricately spreading in fruit, glabrous, 3//-10// 
long; racemes open, much elongating; pods pubes- 
cent, or nearly glabrous, oblong, obtuse, 3/’-4’’ long; 
style none. 
Western Ontario, Michigan and Minnesota to Oregon, 
arctic America and in the Rocky Mountains. Also in 
\ northern Europe and Asia. Summer. 
1o, Draba aurea Vahl. Golden Whitlow- 
grass. (Fig. 1764.) 
Draba aurea Vahl in Hornem. Fl. OEcon. Ed. 2, 599. 
1806. 
Perennial, pubescent throughout with stellate 
and simple hairs; stem branching or nearly simple, 
6/-10’ high, leafy to the inflorescence. Basal leaves 
oblanceolate or spatulate, 6/’-12/’ long, obtuse or 
acutish, slightly dentate or entire, often ciliate at 
the base; stem-leaves oblong or lanceolate, acute; 
pods lanceolate or oblong-lanceolate, 4’/’-6/’ long; 
flowers yellow, 2’’ broad; petals twice the length of 
the calyx, emarginate or entire; pods acute, pubes- 
cent or rarely glabrous, at length slightly twisted, 
4/’-7’/ long, on erect pedicels one-half their length; 
style stout, 14’ long. 
Mignon Island, Gulf of St. Lawrence to Greenland; 
arctic America and in the Rocky Mountains south to 
Arizona. Summer. 
