Flora of South Fork of Kings River. 83 



Heads large, with conspicuous yellow rays ; pappus none ; radical 

 leaves large, on long petioles, arrow-shaped. 

 Balsatnorrhiza, Balsam-root. 



Heads medium, with conspicuous yellow or white rays; outer 

 bracts of involucre entirely enclosing the seeds; inner ones 

 surrounding the disk flowers ; pappus of soft hairs and chaflfy 



^^=^1^^ • • • l.ayia. Tidy-tips. 



Similar to the above but with rays always yellow ; without 



P^PP"^ Madia, Tar-weed. 



HEADS WITHOUT RAYS. 



Disk flowers yellow or white, the outer ones enlarged so as to 



seem like ray flowers ; pappus of papery scales ; leaves alter. 



nate, more or less dissected Ch^enactis. 



Heads small, with the bracts of the involucre papery and woolly, 



in several rows ; flowers minute, hidden by the abundant, fine, 



white pappus ; entire plant clothed with cottony wool ; leaves 



often tufted at base. 



• • ■ Antennaria, Everlasting, Immortelles. 



Shrubs ; heads small, greenish, numerous ; involucres bell-shaped ; 

 pappus none. Generally aromatic, with lobed or divided 

 leaves. . . Artemisia, Sage-brush, Wormwood. 



Low annuals, with linear, opposite leaves; entire plant glandu- 

 lar ; bracts of the small involucres enclosing the seeds ; disk 

 flowers few, yellow. . Harpaecarpus, Tiny Tar-weed. 



Bracts of the involucre in more than one row, surpassing the 

 disk; leaves sessile Chrysopsis. 



Bracts of the involucre in more than one row, shorter than the 

 disk flowers Erigeron. 



Leaves and bracts of the involucre clothed with spines; heads 

 large, never yellow, with the bracts of the involucre in many 

 rows, one above the other ; pappus abundant and conspicuous, 

 white, soft and fine. . . Cnicus (Cirsium), Thistle. 



ALL FLOWERS WITH RAYS. 



Pappus fine, abundant and soft. 



Leaves entire, chiefly from the base, clothed with long and 



abundant hairs ; bracts of the involucre in one row. 



Hieracium, Hawkweed. 



Leaves large, once or twice irregularly cleft, those from the base 



on long petioles ; smooth or clothed with cottony wool ; heads 



medium, with the bracts in one row. . . . Crepis 

 Leaves all from the root, generally cleft or lobed ; heads large on 



long stems; bracts of the involucre in several rows; pappus 



soft and white, joined to the seed by a hair-like stem. 



Agoseris, Dandelion. 



Eriophyllum croceum Greene. Perennial, with many 

 stems from the root, about a foot high. Leaves wedge-shaped at 



