BUCKWHEAT FAMILY 



Locs. -Trinity River valley, Tracy 3473; Howell Mt., Jepson; Napa River, Jepson; Berkeley, 

 Jepson; Milpitas, B. J. Smith; San Mateo Co., Jepson 4159; Moss Lndg., Monterey Co., 

 Abrams 4051; San Luis Obispo, Jepson 3068; Irishtown, Amador Co., Hamen 754; Witch 

 Creek, Alder son. 



Refs. POLYGONUM ACRE H.B.K. Nov. Gen. et Sp. 2: 179 (1817), type trop. Am. P. puncta- 

 tum Ell. Bot. S. C. & Ga. 1: 455 (1821) ; Small, Monog. N. Am. Polygonum, 88, pi.- 31 (1895). 



11. P. paronychia C. & S. Stems from large woody rootstocks, suffrutes- 

 cent, prostrate or ascending, 1 to 3 feet long; branches leafy above, below 

 clothed with old sheaths ; sheaths large, 4 to 6 lines long, brown and 5-nerved, 

 the margin freely lacerate above, persistent, the segments becoming hair-like 

 in age; leaves linear-lanceolate, 5 to 8 (or 11) lines long, acute, the margin 

 revolute ; flowers about 3 in an axil, on short pedicels, densely crowded at the 

 ends of the branches in short more or less leafy spikes; sepals white or rose- 

 color, oblong-ovate, the green midvein with pinnately toothed outline ; stamens 

 8, the 3 inner dilated at base. 



Sand hills along the coast: middle California north to British Columbia. 



Locs. Monterey, Berg; San Francisco, Setchell, Jepson; Pt. Eeyes, Davy 6877; Bucksport, 

 Tracy 3200; Eequa, Goddard. 



Refs. POLYGONUM PARONYCHIA C. & S. Linnaea, 3: 51 (1828), type loe. San Francisco, 

 Chamisso, Eschscholtz ; Small, Monog. N. Am. Polygonum, 94, pi. 34 (1895) ; Jepson, Fl. W. 

 Mid. Cal. 159 (1901). 



12. P. bolanderi Brew. Stems many, erect, 5 to 10 inches high, arising 

 from a woody taproot or from prostrate woody branches; leaves narrowly 

 linear to subulate, acute or cuspidate, 2 to 8 lines long, not revolute; sheaths 

 persistent, 2-lobed on each side, the lower lobes finely lacerate; flowers white 

 or rose-color, 1 or occasionally 2 in the axils on the branchlets ; stamens 8 or 9. 



Rocky outcroppings, Napa and Mt. Hood ranges. Possibly also at Salida, 



Stanislaus Co. July-Sept. 



Refs. POLYGONUM BOLANDERI Brew.; Gray, Proc. Am. Aead. 8: 400 (1872), type loc. Napa 

 Valley, Brewer, Bolander; Small, Monog. N. Am. Polygonum, 140, pi. 57 (1895) ; Jepson, Fl. 

 W. Mid. Cal. 159 (1901). 



13. P. shastense Brew. Stems mostly simple, 2 to 6 inches long, several 

 from the branching crown of a perennial root; leaves oblong or obovate, 3 

 to 4 inches long ; stipules broad, silvery ; flowers red or white, 2 or 3 in the axils ; 

 stamens 8. 



High Sierra Nevada, 7000 to 9000 feet; north to Mt. Mazama, Oregon. 



Locs. Mt. Shasta, Jepson; Lassen Peak, Mrs. B. M. Austin; Donner Pass, Heller 7151; 

 Pyramid Peak, Hall $ Chandler 4744; Long Mdw., Tuolumne Co., Chesnut fy Drew; Mt. 

 Goddard, Hall $ Chandler 684; Mt. Silliman, K. Brandegee. Mt. Rose, Nev., Kennedy 1137. 



Refs. POLYGONUM SHASTENSE Brew.; Gray, Proe. Am. Acad. 8: 400 (1872), type spms. 

 from Mt. Shasta and Carson Pass, Torrey, Brewer; Small, Monog. N. Am. Polygonum, 96, pi. 

 35 (1895) ; Merriam, N. Am. Fauna, 16: 144 (1899). 



14. P. aviculare L. WIRE GRASS. YARD GRASS. Annual; stems wiry, mi- 

 nutely striate, prostrate or ascending, often several feet long, flowering from 

 the base; herbage glabrous and green; leaves oblong, acute, 3 to 6 lines long; 

 flowers on very short pedicels, 2 lines broad when expanded; calyx cleft, the 

 oblong lobes white with a green center; stamens 8, the 3 inner with dilated 

 bases; styles 3, very short; achene ovoid, dark brown, minutely granular. 



Naturalized from Europe; common in hard, especially beaten soils, and 

 sometimes in cultivated lands; flowering through the dry season and until 

 after the rains break. Var. LITTORALE Koch. Leaves thick, often obtuse. 

 Maritime form. 



Refs. POLYGONUM AVICULARE L. Sp. PL 362 (1753), type European. Var. LITTORALE 

 Martens & Koch, Deutsche Fl. 3: 59 (1831). 



15. P. ramosissimum Michx. Annual, with the aspect of P. aviculare but 

 erect and 1 to 2 feet high; leaves oblong to lanceolate, % to l 1 ^ inches long, 

 somewhat reduced above ; calyx greenish or yellowish ; stamens 3 to 6 ; achene 

 black, dull. 



