90 KEY AND FLORA 



a. T. Califor'nica Wats. Silky-tomentose. Leaflets an inch or 

 two long, obovate ; stipules ovate or lanceolate, often longer than 

 the petioles. Pods 1-2 in. long, erect and slightly spreading, with 

 but few seeds maturing. This is the common species in Cali- 

 fornia. It grows among the hills of the Coast Mountains where 

 the ground is wet but not marshy, and blooms in spring. 



b. T. monta'na Nutt. Silky-hairy. Leaflets oblong, 1-3 in. long ; 

 stipules ovate or lanceolate, generally longer than the petioles. Pods 

 strictly erect, 2-3 in. long. This is found in the mountains of 

 Washington and Oregon. It blooms in the spring. 



II. PICKERIN'GIA (XYLOTHER'MIA), Spiny Chaparral, Chaparral 

 Pea, Needle Bush 



A very spiny glaucous shrub with small evergreen leaves. 

 Leaflets from 1 to 3, without stipules. Flowers large, soli- 

 tary, nearly sessile in the axils of the leaves, of a rich crimson 

 color. It fruits very rarely. 



P. monta'na Nutt. This is the only species. It is the most diffi- 

 cult chaparral of all to penetrate because of its stout spines. It is 

 found on dry hills in the Coast Mountains. 



HI. LUPFNUS, Lupine, Sun Dial 



Calyx generally 2-lipped. Corolla with broad standard 

 and wings united above, enclosing the incurved, pointed keel. 

 Stamens monadelphous in 2 sets. In the bud one set has long 

 anthers, the others are shorter and tipped with a yellow ball. 

 As the flower develops, the ball-tipped filaments grow longer 

 and push the pollen up to the top of the keel, from which 

 the pistil projects. Leaves palmately compound, with the 

 leaflets folding at mid-day. Stipules adnate to the petiole. 

 Flowers in terminal racemes, sometimes arranged in whorls 

 on the peduncles. The flowers are generally blue ; but white 

 and yellow-flowered species exist, also one combining yellow 

 and rose-color. 



a. L. Chamisso'nis Esch. Shrubby, pale green from the close 

 white pubescence. Leaflets 7-9, silky on both sides. Flowers 

 somewhat whorled, blue, violet, rarely white. This is variable, and 

 several species have been included under this name; but they are 

 not easily denned. Throughout California. 



