ASTERACEAE. 399 



Common in wet places along streams and marshes, especially 

 toward the coast. Flowering nearly throughout the year. 



2. C. australis Hook. Annual, slender and diffusely branched, 

 pubescent with soft spreading hairs, not at all succulent, 5-12 cm, 

 long; leaves 1-2-pinnately divided into linear lobes; heads 2-3 mm. 

 broad; involucral bracts brownish-tipped, scarious-margined; apet- 

 alous flowers in 2-3 rows, pedicellate, their achenes minutely hispid 

 on both faces, the margins smooth. 



In waste places along streets, not common. January-March. 



61. ARTEMISIA L. 



Mostly aromatic and bitter herbs or shrubs with 

 alternate leaves and panicled spikes or racemes of small 

 discoid heads. Involucral bracts imbricated in few 

 series, the outer gradually shorter. Receptacle flat, 

 convex or hemispheric, naked or pubescent, not chaffy. 

 Marginal flowers pistillate and fertile, their corollas 2-3- 

 toothed. Central flowers perfect, sterile or fertile, or 

 flowers all perfect and fertile. Anthers often tipped at 

 apex with subulate appendages. Achenes obovoid or 

 oblong, 2-ribbed or striate, rounded or truncate at the 

 summit, with a small terminal areola. Pappus none or 

 minute and coroniform. 



Perennial or annual herbs. 



Leaves densely tomentose beneath. 1. A. heterophylla. 



Leaves glabrous. 



Leaves pinnately parted. 2. A. biennis. 



Leaves, all but the lowest linear and 



entire. 3. A. dracunculoides . 



Shrubs, canescent throughout and strongly 

 aromatic. 

 Flowers of the margin pistillate, the others 



perfect. 4. A. calif ornica. 



Flowers all perfect and fertile. 5. A. parishii. 



\. A. heterophylla Nutt. Perennial; stems erect, somewhat 

 woody at base, 1-2 m, high; leaves lanceolate to oblong, ovate or 

 elliptic, 5-10 cni. long, sparingly pinnatifid, cleft or often entire, 

 green above, white-tomentose beneath; heads mostly erect in dense 

 terrninal panicles, the axis leafy; involucre oblong; marginal flowers 

 pistillate; disk-flowers perfect, all fertile. {A. vulgaris calif ornica 

 Bess.) 



Common in low ground and along streams in the foothills. July- 

 October. 



_ 2. A. biennis Willd. ^ Annual; stems erect, virgate, 3-10 dm. 

 high, leafy to the summit; herbage deep green, glabrous and nearly 

 tasteless, aromatic; leaves 1-2-pinnately parted into lanceolate or 

 broadly linear laciniate or toothed lobes, or the uppermost only 



