PLANT LIFE IN OKLAHOMA. 47 



SEDGE FAMILY — (Cyperaceae) . — Includes the cypresses, found 

 in wet sandy soils over most of the State, nut grasses, spike rushes (36), 

 huUrushes (9), umbrella grasses, dwarf sedges, beak-rus'hes, nut-rushes, 

 and sedges, of which there are a large number. 



ARUM FAMILY — (Araceae). — This family includes the Indian 

 turnip, or Jack-in-the-pulpit, found in moist woods in the eastern part 

 of the State. The green dragon or dragon root is found in moist woods 

 over the State, except the west and northwest part ; and the sweet flag or 

 calamus-root is found in the eastern part of the State. 



DUCK WEED FAMILY— (iemwacea-e).— This family includes 

 several species of small green plants, floating in large numbers on quiet 

 water, found to some extent over the State, but chiefly in the eastern half. 



YELLOW-EYED GRASS FAMILY— (Zt/nrfaceffle).— Includes 

 only one genus found in the State. This is the lender yellow-eyed 

 grass in the eastern part of the State. 



SPIDERWORT FAMILY — (CommeUnaceae) .—'Kerbs, with jointed 

 round stems, mostly branched, including the spiderworts and day-flowers. 



PICKEREL WEED FAMILY— (FoMted'emceae).— Including the 

 picarelle, wood and mud plantins. The plants of this family grow in 

 the central-eastern part of the State. 



RUSH FAMILY— (JwMcaceae). —Includes the rushes (20). 



LILY FAMILY — (Liliaceae). — This family includes the bunch 

 flower, false helebore, wild onions (including the garlics), and Oklahoma 

 lily — ^found on prairies over the entire State, except part of northeast 

 comer, lilies, dog-tooth violet, bellworts, hyacinths, star flower, yuccas 

 (soap root), asparagus, false Solomon's Seal, Solomon's Seal, lily 6i the 

 valley, wake robin {Trillium), and Green briars (7). 



YAM FAMILY — (Dioscoreaceae) . — Wild yam root (Colic root). 



AMARYLLIS FAMILY — {Amaryllidaceae) . — Yellow star-grasses. 



IRIS FAMILY — (Iridiaceae) . — Irises, blue flags, and blue-eyed 

 grasses. 



ORCHARD 'FAMUjY—iOrchidaceae) .—This family includes the 

 mocassin flower, the lady's slippers and showy orchis, and several other 

 species. 



LIZARD-TAIL FAMILY — (SawJ-wraceae). —Lizard-tail in swamps 

 and along pond margins in eastern part of State. 



WILLOW FAMILY— (,/S'aZicaceae).— Including the willows of 

 which there are at least 6 species and the poplars, including the silver- 

 leaved or white poplar and the cottonwoods (2). 



WALNUT FAMILY — (Juglandaceae).—The walnuts (3) and 

 hickories (10). 



BIRCH FAMILY — {B etulaceae) .—Imluiing the hazel, iron wood, 

 hombean, birches, and alders. 



