Part 1, 1916] CHENOPODIACEAE 7 
18. KOCHIA Roth, Jour. Bot. Schrad. 1800': 307. 1801. 
Sclerochlamys F. Muell. Trans. Phil. Inst. Vict. 2: 76. 1858. 
Pubescent or rarely glabrous, annual or perennial herbs or low shrubs. Leaves narrow, 
often terete, entire. Flowers small, perfect or pistillate, sessile, solitary. or glomerate in the 
axils of the leaves. Perianth subglobose, 5-lobed, the lobes incurved, mostly coriaceous in 
age, horizontal wings developing in age upon the calyx-lobes or the tube, these membranaceous 
or scarious, distinct or confluent. Stamens 5, exserted, the filaments compressed. Ovary 
subsessile; stigmas 2 or rarely 3. Utricle depressed-globose, the pericarp free from the seed. 
Seed horizontal; embryo annular, surrounding the scanty endosperm. 
Type species, Salsola arenaria Maerklin. 
Annual; leaves petiolate, the blades lance-linear, thin; calyx-wings minute. 1. Ki Scoparia. 
Perennials; leaves sessile, the blades terete or linear-oblong, succulent; calyx- 
wings large and conspicuous. 
Leaf-blades linear-oblong, flat; stems paniculately branched. 
Leaf-blades terete or nearly so; stems usually branched only from the base. 
eu acts and leaves densely and permanently sericeous-pilose; fruit densely 
airy. 
Stems and leaves soon glabrate; fruit nearly glabrous. 
2. K. californica. 
3. K. vestita. 
4, K. americana. 
1. Kochia Scoparia (L.) Schrad. Neues Jour. Bot. Schrad. 33: 85. 
1809, , 
Chenopodium Scoparia I,. Sp. Pl. 221. 1753. 
Atriplex Scoparia Crantz, Inst. 1: 208. 1766. 
Salsola Scoparia Bieb. Mém. Soc. Nat. Mosc. 1: 144. 1811. 
Erect annual, 3-15 dm. high, much branched, the branches slender, ascending or erect, 
very leafy, glabrous or short-pilose, often tinged with red; leaf-blades lance-linear or linear, 
2~7 cm. long, 3-8 mm. wide, those of the inflorescence smaller, all acuminate, tapering at the 
base to a slender petiole, thin, usually ciliate, often pilose-sericeous; flowers sessile, clustered 
in the axils of the leaves, forming short dense leafy spikes, pilose, or glabrate in age; calyx 1.5—2 
mm. broad, the wings triangular, obtuse, 0.6 mm. long or less, not nerved; seed 1.5 mm. in 
diameter. 
TYPE LOCALITY: Greece. 
DistTRIButIon: Asia and southern Europe; escaped from cultivation in many parts of the 
United States. 
ILLUSTRATIONS: Dod. Pempt. 101; Britt. & Brown, Ill. Fl. f. 1387; ed. 2. f. 1695; E. & P. Nat. 
Pfl. 314: f. 32, O, R; Fiori & Paol. Ic. Fl. Ital. f. 1021; Hegi, Ill. Fl. f. 554, ku. 
2. Kochia californica S. Wats. Proc. Am. Acad. 9: 93. 1874. 
Kochia americana californica M. E. Jones, Contr. West. Bot. 11: 19. 1903. 
Perennial; stems few or many from a woody root, 1.5-5 dm. high, erect, stout, obtusely 
angled and striate, simple at the base, paniculately branched above, the branches ascending 
or spreading, densely silky-tomentose or pilose with grayish hairs; leaves rather remote, 
sessile, the blades narrowly oblong or oblong-linear, 5-17 mm. long, 1.5-3 mm. wide, spreading, 
obtuse or acutish, flat, densely sericeous; flowers solitary or in clusters of 2-5, densely tomentu- 
lose; calyx in fruit 2 mm. in diameter, the wings flabellate, 2 mm. long, distinct, irregularly 
crenulate, scarious, finely nerved; seed 2 mm. in diameter. 
Type LocaLity: Near Colton, California. 
DISTRIBUTION: Southern California and western Nevada. 
3. Kochia vestita (S. Wats.) Rydb. Fl. Colo. 119. 1906. 
Kochia americana vestita S. Wats. Proc. Am. Acad. 9: 93. 1874. 
Erect perennial from a woody base; stems numerous, 1-4 dm. high, mostly simple, some- 
times with a few erect branches above, densely villous-tomentose; leaves erect or ascending, 
sessile, the blades terete, fleshy, 7-25 mm. long, densely sericeous; flowers solitary or in 2’s or 
3’s, densely tomentose; calyx in fruit 2 mm. in diameter, the wings distinct, broadly flabel- 
late, 1.5 mm. long, crenulate; utricle densely tomentose; seed 1.5 mm. in diameter. 
TYP’ ‘ty: Shores of Great Salt Lake, Utah. _ 
Dist euctoN ‘Aikatine plains and marshes, Wyoming and Colorado to Oregon and northern 
California. 
