336 



BORAGINACEAE (BORAGE FAMILY] 



narrow lance-shaped, two to four inches long, the lower ones taper- 

 ing to margined petioles, the upper ones sessile. Racemes long, 

 ascending, many-flowered, usually in pairs ; corolla blue, more 

 than a quarter-inch broad, the five lobes spreading; pedicels 

 nearly as long as the flower, reflexed in fruit. Burs about a quarter- 

 inch long, the four nutlets keeled, margined with a single row of 

 flattened, awl-like, barbed prickles. 

 Means of control the same as for Ldppula echinata. 



termedia). x 1. 



YELLOW BURWEED 

 Amsinckia intermedia, F. and M. 



Other English names: Yellow Tarweed, 

 Fireweed, Yellow Forget-me-not. 



Native. Annual. Propagates by seeds. 



Time of bloom : May to July. 



Seed-time: June to August. 



Range: Pacific Coast. 



Habitat: Grain fields, meadows, pastures, 

 and vineyards. 



An unpleasant, hairy weed, with sticky, 

 bristly burs which make it a pest to Cali- 

 fornia wool-growers. Stem erect, clothed 

 with stiff white bristles, one to three feet 

 high, with spreading branches. Leaves 

 rather thick, lance-shaped to linear, en- 

 tire, and thickly covered with fine, bristly 

 hairs much shorter than those on the 

 stem. Flowers in crowded, terminal, 

 leafy-bracted racemes which lengthen as 

 the succession of bloom approaches the 

 summit ; when developed, the racemes may 

 be five to ten inches long, peduncled, and 

 have usually matured seeds at the base 

 before the latest buds are unfolded. Co- 

 rolla orange-yellow, about a quarter-inch 

 broad, its five lobes spread salver-form, 



and the tube encl Sed for ab Ut half itS 

 length in a bristly calyx with very narrow, 



